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Liu YY, Wu DK, Chen JB, Tang YM, Jiang F. Advances in the study of gastric organoids as disease models. World J Gastrointest Oncol 2024; 16:1725-1736. [PMID: 38764838 PMCID: PMC11099456 DOI: 10.4251/wjgo.v16.i5.1725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 01/23/2024] [Accepted: 03/25/2024] [Indexed: 05/09/2024] Open
Abstract
Gastric organoids are models created in the laboratory using stem cells and sophisticated three-dimensional cell culture techniques. These models have shown great promise in providing valuable insights into gastric physiology and advanced disease research. This review comprehensively summarizes and analyzes the research advances in culture methods and techniques for adult stem cells and induced pluripotent stem cell-derived organoids, and patient-derived organoids. The potential value of gastric organoids in studying the pathogenesis of stomach-related diseases and facilitating drug screening is initially discussed. The construction of gastric organoids involves several key steps, including cell extraction and culture, three-dimensional structure formation, and functional expression. Simulating the structure and function of the human stomach by disease modeling with gastric organoids provides a platform to study the mechanism of gastric cancer induction by Helicobacter pylori. In addition, in drug screening and development, gastric organoids can be used as a key tool to evaluate drug efficacy and toxicity in preclinical trials. They can also be used for precision medicine according to the specific conditions of patients with gastric cancer, to assess drug resistance, and to predict the possibility of adverse reactions. However, despite the impressive progress in the field of gastric organoids, there are still many unknowns that need to be addressed, especially in the field of regenerative medicine. Meanwhile, the reproducibility and consistency of organoid cultures are major challenges that must be overcome. These challenges have had a significant impact on the development of gastric organoids. Nonetheless, as technology continues to advance, we can foresee more comprehensive research in the construction of gastric organoids. Such research will provide better solutions for the treatment of stomach-related diseases and personalized medicine.
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Affiliation(s)
- Yi-Yang Liu
- Graduate School, Guangxi University of Chinese Medicine, Nanning 530011, Guangxi Zhuang Autonomous Region, China
| | - De-Kun Wu
- Teaching Experiment and Training Center, Guangxi University of Chinese Medicine, Nanning 530011, Guangxi Zhuang Autonomous Region, China
| | - Ji-Bing Chen
- Central Laboratory, Ruikang Hospital Affiliated to Guangxi University of Traditional Chinese Medicine, Nanning 530011, Guangxi Zhuang Autonomous Region, China
| | - You-Ming Tang
- Department of Digestive Disease, Ruikang Hospital Affiliated to Guangxi University of Traditional Chinese Medicine, Nanning 530011, Guangxi Zhuang Autonomous Region, China
| | - Feng Jiang
- AIDS Research Center, Ruikang Hospital Affiliated to Guangxi University of Traditional Chinese Medicine, Nanning 530011, Guangxi Zhuang Autonomous Region, China
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Saliba T, Khoury E, Aboujaoude R, Kassis A. Comparison of the accuracy of bracket axial positioning with and without radiographic support and according to practitioner experience: A three-dimensional study. J World Fed Orthod 2024:S2212-4438(24)00020-1. [PMID: 38744656 DOI: 10.1016/j.ejwf.2024.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 03/14/2024] [Accepted: 03/20/2024] [Indexed: 05/16/2024]
Abstract
INTRODUCTION Accurate bracket positioning remains challenging. To avoid angulation errors, some recommend examining the panoramic radiograph during bonding. However, it can cause distortions. Cone-beam computed tomography (CBCT) provides a more precise panoramic reconstruction but with higher radiation doses. The main objective of this study is to compare the accuracy of axial positioning between direct bonding without radiography, with conventional panoramic radiograph, and with panoramic reconstruction from CBCT. The secondary objectives are to evaluate positioning accuracy of each tooth and to assess the influence of practitioner level of experience. METHODS Thirty practitioners, divided into two groups based on their experience performed direct bonding on a model thrice: without radiography, then with the conventional panoramic radiograph, then with the panoramic reconstruction from CBCT. Models were scanned, and angulation errors were measured using OrthoAnalyzer. Values were compared using the Friedman's test followed by the Bonferroni correction for multiple comparisons (P-value = 0.05). RESULTS For the low level of experience group, angulation errors were significantly greater than the accepted limit without radiographic reference, and significantly lower with CBCT reconstruction. For the high level of experience group, angulation errors were significantly lower than the accepted limit for the three bonding methods. For every tooth, using the panoramic reconstruction from CBCT as a reference, was the most accurate method, regardless of the level of experience. More experienced practitioners made fewer errors for the three methods. CONCLUSIONS Panoramic reconstruction from CBCT is the most accurate method to limit angulation errors during direct bonding. Conventional panoramic radiography remains a reliable tool if used with caution. Bonding without any radiographic reference should be avoided especially for less experienced practitioners.
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Affiliation(s)
- Tatiana Saliba
- Department of Orthodontics and Dento-facial Orthopedics, Faculty of Dental Medicine, Saint Joseph University of Beirut, Beirut, Lebanon.
| | - Elie Khoury
- Department of Orthodontics and Dento-facial Orthopedics, Faculty of Dental Medicine, Saint Joseph University of Beirut, Beirut, Lebanon
| | - Rami Aboujaoude
- Department of Orthodontics and Dento-facial Orthopedics, Faculty of Dental Medicine, Saint Joseph University of Beirut, Beirut, Lebanon
| | - Adib Kassis
- Department of Orthodontics and Dento-facial Orthopedics, Faculty of Dental Medicine, Saint Joseph University of Beirut, Beirut, Lebanon
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Lin Y, Dobbe JGG, Lachkar N, Ronde EM, Smit TH, Breugem CC, Streekstra GJ. A three-dimensional algorithm for precise measurement of human auricle parameters. Sci Rep 2024; 14:10760. [PMID: 38729983 PMCID: PMC11087560 DOI: 10.1038/s41598-024-61351-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 05/05/2024] [Indexed: 05/12/2024] Open
Abstract
Measurement of auricle parameters for planning and post-operative evaluation presents substantial challenges due to the complex 3D structure of the human auricle. Traditional measurement methods rely on manual techniques, resulting in limited precision. This study introduces a novel automated surface-based three-dimensional measurement method for quantifying human auricle parameters. The method was applied to virtual auricles reconstructed from Computed Tomography (CT) scans of a cadaver head and subsequent measurement of important clinically relevant aesthetical auricular parameters (length, width, protrusion, position, auriculocephalic angle, and inclination angle). Reference measurements were done manually (using a caliper and using a 3D landmarking method) and measurement precision was compared to the automated method. The CT scans were performed using both a contemporary high-end and a low-end CT scanner. Scans were conducted at a standard scanning dose, and at half the dose. The automatic method demonstrated significantly higher precision in measuring auricle parameters compared to manual methods. Compared to traditional manual measurements, precision improved for auricle length (9×), width (5×), protrusion (5×), Auriculocephalic Angle (5-54×) and posteroanterior position (23×). Concerning parameters without comparison with a manual method, the precision level of supero-inferior position was 0.489 mm; and the precisions of the inclination angle measurements were 1.365 mm and 0.237 mm for the two automated methods investigated. Improved precision of measuring auricle parameters was associated with using the high-end scanner. A higher dose was only associated with a higher precision for the left auricle length. The findings of this study emphasize the advantage of automated surface-based auricle measurements, showcasing improved precision compared to traditional methods. This novel algorithm has the potential to enhance auricle reconstruction and other applications in plastic surgery, offering a promising avenue for future research and clinical application.
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Affiliation(s)
- Yangyang Lin
- Department of Plastic, Reconstructive and Hand Surgery, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Reproduction and Development Research Institute, Amsterdam, The Netherlands
| | - Johannes G G Dobbe
- Department of Biomedical Engineering and Physics, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Movement Sciences, Musculoskeletal Health-Restoration and Development, Amsterdam, The Netherlands
| | - Nadia Lachkar
- Department of Plastic, Reconstructive and Hand Surgery, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands
| | - Elsa M Ronde
- Department of Plastic, Reconstructive and Hand Surgery, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Reproduction and Development Research Institute, Amsterdam, The Netherlands
| | - Theo H Smit
- Department of Orthopedic Surgery and Sports Medicine, Amsterdam Movement Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Department of Medical Biology, Amsterdam UMC Location AMC, Amsterdam, The Netherlands
- Department of Gynaecology and Amsterdam Reproduction and Development, Amsterdam UMC Location VUMC, Amsterdam, The Netherlands
| | - Corstiaan C Breugem
- Department of Plastic, Reconstructive and Hand Surgery, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Reproduction and Development Research Institute, Amsterdam, The Netherlands
| | - Geert J Streekstra
- Department of Biomedical Engineering and Physics, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands.
- Amsterdam Movement Sciences, Musculoskeletal Health-Restoration and Development, Amsterdam, The Netherlands.
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Rutkūnas V, Jegelevičius D, Gedrimienė A, Auškalnis L, Eyüboğlu TF, Özcan M, Husain NAH, Akulauskas M, Pletkus J. The Effect of Different Intraoral Scanners on The Accuracy of Bite Registration in Edentulous Maxillary and Mandibular Arches. J Dent 2024:105050. [PMID: 38735468 DOI: 10.1016/j.jdent.2024.105050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 04/24/2024] [Accepted: 05/05/2024] [Indexed: 05/14/2024] Open
Abstract
OBJECTIVES The objective of this study was to use in vitro models to examine the bite registration accuracy of four different intraoral scanners (IOS) for edentulous maxillary and mandibular arches. The objective was to assess the trueness and precision of the IOS and determine if there were significant differences between them. METHODS An Asiga Max UV 3D printer was used to print maxillary and mandibular edentulous models based on the shape of Frasaco models (artificial dental arch models). Four dental implants were placed symmetrically in both models using Straumann BLT RC implants. Digital impressions were taken with Primescan, Trios 3, Trios 4, and Medit i500 intraoral scanners (n = 10 for each IOS). Digital bite registrations were made, and scanning data was exported in STL format. The accuracy of the interarch distance (the distance between the metrological spheres attached to the mandibular and maxillary models) was estimated for each IOS. RESULTS The results showed significant differences in trueness and precision between different IOS (p <.05), except Medit i500 and Trios 3 (p >.05). Primescan provided the most accurate results, followed by Medit i500, Trios 3, and Trios 4, respectively. CONCLUSIONS within the limitations of this study, the IOS type affects the accuracy of interocclusal bite registration in in vitro design. Only Primescan achieved clinically acceptable accuracy for the interocclusal recording of edentulous arches. CLINICAL RELEVANCE The comparison of the accuracy of bite registration between different intraoral scanners will help increase the efficiency of the clinical application of digitalized interarch registration.
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Affiliation(s)
- Vygandas Rutkūnas
- Vilnius University, Department of Prosthodontics, Institute of Odontology, Faculty of Medicine, Vilnius, Lithuania; Digitorum Research Center, Vilnius, Lithuania
| | - Darius Jegelevičius
- Kaunas University of Technology, Biomedical Engineering Institute, Department of Electronics Engineering, Kaunas, Lithuania
| | - Agnė Gedrimienė
- Vilnius University, Department of Prosthodontics, Institute of Odontology, Faculty of Medicine, Vilnius, Lithuania; Digitorum Research Center, Vilnius, Lithuania
| | - Liudas Auškalnis
- Vilnius University, Department of Prosthodontics, Institute of Odontology, Faculty of Medicine, Vilnius, Lithuania; Digitorum Research Center, Vilnius, Lithuania
| | - Tan Fırat Eyüboğlu
- Istanbul Medipol University, Faculty of Dentistry, Department of Endodontics, Istanbul, Turkey
| | - Mutlu Özcan
- University of Zurich, Division of Dental Biomaterials, Clinic for Reconstructive Dentistry, Zurich, Switzerland.
| | - Nadin Al-Haj Husain
- University of Zurich, Division of Dental Biomaterials, Clinic for Reconstructive Dentistry, Zurich, Switzerland and University of Bern, Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, Bern, Switzerland
| | - Mykolas Akulauskas
- Kaunas University of Technology, Biomedical Engineering Institute, Department of Electronics Engineering, Kaunas, Lithuania
| | - Justinas Pletkus
- Vilnius University, Department of Prosthodontics, Institute of Odontology, Faculty of Medicine, Vilnius, Lithuania; Digitorum Research Center, Vilnius, Lithuania
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Islam MA, Majumder MZH, Miah MS, Jannaty S. Precision healthcare: A deep dive into machine learning algorithms and feature selection strategies for accurate heart disease prediction. Comput Biol Med 2024; 176:108432. [PMID: 38744014 DOI: 10.1016/j.compbiomed.2024.108432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 04/06/2024] [Accepted: 04/07/2024] [Indexed: 05/16/2024]
Abstract
This paper presents a comprehensive exploration of machine learning algorithms (MLAs) and feature selection techniques for accurate heart disease prediction (HDP) in modern healthcare. By focusing on diverse datasets encompassing various challenges, the research sheds light on optimal strategies for early detection. MLAs such as Decision Trees (DT), Random Forests (RF), Support Vector Machines (SVM), Gaussian Naive Bayes (NB), and others were studied, with precision and recall metrics emphasized for robust predictions. Our study addresses challenges in real-world data through data cleaning and one-hot encoding, enhancing the integrity of our predictive models. Feature extraction techniques-Recursive Feature Extraction (RFE), Principal Component Analysis (PCA), and univariate feature selection-play a crucial role in identifying relevant features and reducing data dimensionality. Our findings showcase the impact of these techniques on improving prediction accuracy. Optimized models for each dataset have been achieved through grid search hyperparameter tuning, with configurations meticulously outlined. Notably, a remarkable 99.12 % accuracy was achieved on the first Kaggle dataset, showcasing the potential for accurate HDP. Model robustness across diverse datasets was highlighted, with caution against overfitting. The study emphasizes the need for validation of unseen data and encourages ongoing research for generalizability. Serving as a practical guide, this research aids researchers and practitioners in HDP model development, influencing clinical decisions and healthcare resource allocation. By providing insights into effective algorithms and techniques, the paper contributes to reducing heart disease-related morbidity and mortality, supporting the healthcare community's ongoing efforts.
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Affiliation(s)
- Md Ariful Islam
- Department of Robotics and Mechatronics Engineering, University of Dhaka, Dhaka, 1000, Bangladesh.
| | | | - Md Sohel Miah
- Department of Computer Science and Technology, Moulvibazar Polytechnic Institute, Bangladesh
| | - Sumaia Jannaty
- Gonoshasthaya Samaj Vittik Medical College, Savar, Dhaka, Bangladesh
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Mertens JE, Rigby CA, Bardelli M, Quinkert D, Hou MM, Diouf A, Silk SE, Chitnis CE, Minassian AM, Moon RW, Long CA, Draper SJ, Miura K. Evaluation of the precision of the Plasmodium knowlesi growth inhibition assay for Plasmodium vivax Duffy-binding protein-based malaria vaccine development. Vaccine 2024:S0264-410X(24)00514-0. [PMID: 38704253 DOI: 10.1016/j.vaccine.2024.04.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/17/2024] [Accepted: 04/23/2024] [Indexed: 05/06/2024]
Abstract
Recent data indicate increasing disease burden and importance of Plasmodium vivax (Pv) malaria. A robust assay will be essential for blood-stage Pv vaccine development. Results of the in vitro growth inhibition assay (GIA) with transgenic P. knowlesi (Pk) parasites expressing the Pv Duffy-binding protein region II (PvDBPII) correlate with in vivo protection in the first PvDBPII controlled human malaria infection (CHMI) trials, making the PkGIA an ideal selection tool once the precision of the assay is defined. To determine the precision in percentage of inhibition in GIA (%GIA) and in GIA50 (antibody concentration that gave 50 %GIA), ten GIAs with transgenic Pk parasites were conducted with four different anti-PvDBPII human monoclonal antibodies (mAbs) at concentrations of 0.016 to 2 mg/mL, and three GIAs with eighty anti-PvDBPII human polyclonal antibodies (pAbs) at 10 mg/mL. A significant assay-to-assay variation was observed, and the analysis revealed a standard deviation (SD) of 13.1 in the mAb and 5.94 in the pAb dataset for %GIA, with a LogGIA50 SD of 0.299 (for mAbs). Moreover, the ninety-five percent confidence interval (95 %CI) for %GIA or GIA50 in repeat assays was calculated in this investigation. The error range determined in this study will help researchers to compare PkGIA results from different assays and studies appropriately, thus supporting the development of future blood-stage malaria vaccine candidates, specifically second-generation PvDBPII-based formulations.
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Affiliation(s)
- Jonas E Mertens
- Department of Biochemistry, University of Oxford, Dorothy Crowfoot Hodgkin Building, Oxford OX1 3QU, United Kingdom; Kavli Institute for Nanoscience Discovery, University of Oxford, Dorothy Crowfoot Hodgkin Building, Oxford OX1 3QU, United Kingdom; Institute for Infection Research and Vaccine Development (IIRVD), University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Cassandra A Rigby
- Department of Biochemistry, University of Oxford, Dorothy Crowfoot Hodgkin Building, Oxford OX1 3QU, United Kingdom; Kavli Institute for Nanoscience Discovery, University of Oxford, Dorothy Crowfoot Hodgkin Building, Oxford OX1 3QU, United Kingdom
| | - Martino Bardelli
- Department of Biochemistry, University of Oxford, Dorothy Crowfoot Hodgkin Building, Oxford OX1 3QU, United Kingdom; Kavli Institute for Nanoscience Discovery, University of Oxford, Dorothy Crowfoot Hodgkin Building, Oxford OX1 3QU, United Kingdom
| | - Doris Quinkert
- Department of Biochemistry, University of Oxford, Dorothy Crowfoot Hodgkin Building, Oxford OX1 3QU, United Kingdom; Kavli Institute for Nanoscience Discovery, University of Oxford, Dorothy Crowfoot Hodgkin Building, Oxford OX1 3QU, United Kingdom
| | - Mimi M Hou
- Department of Biochemistry, University of Oxford, Dorothy Crowfoot Hodgkin Building, Oxford OX1 3QU, United Kingdom; Kavli Institute for Nanoscience Discovery, University of Oxford, Dorothy Crowfoot Hodgkin Building, Oxford OX1 3QU, United Kingdom
| | - Ababacar Diouf
- Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville 20852, MD, United States
| | - Sarah E Silk
- Department of Biochemistry, University of Oxford, Dorothy Crowfoot Hodgkin Building, Oxford OX1 3QU, United Kingdom; Kavli Institute for Nanoscience Discovery, University of Oxford, Dorothy Crowfoot Hodgkin Building, Oxford OX1 3QU, United Kingdom
| | - Chetan E Chitnis
- Unité de Biologie de Plasmodium et Vaccins, Institut Pasteur, Université Paris Cité, 25-28 Rue du Dr Roux, 75015 Paris, France
| | - Angela M Minassian
- Department of Biochemistry, University of Oxford, Dorothy Crowfoot Hodgkin Building, Oxford OX1 3QU, United Kingdom; Kavli Institute for Nanoscience Discovery, University of Oxford, Dorothy Crowfoot Hodgkin Building, Oxford OX1 3QU, United Kingdom; NIHR Oxford Biomedical Research Centre, Oxford, United Kingdom
| | - Robert W Moon
- Department of Infection Biology, London School of Hygiene and Tropical Medicine, London WC1E 7HT, United Kingdom
| | - Carole A Long
- Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville 20852, MD, United States
| | - Simon J Draper
- Department of Biochemistry, University of Oxford, Dorothy Crowfoot Hodgkin Building, Oxford OX1 3QU, United Kingdom; Kavli Institute for Nanoscience Discovery, University of Oxford, Dorothy Crowfoot Hodgkin Building, Oxford OX1 3QU, United Kingdom; NIHR Oxford Biomedical Research Centre, Oxford, United Kingdom.
| | - Kazutoyo Miura
- Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville 20852, MD, United States.
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Leduc L, Leclère M, Lavoie JP. Towards personalized medicine for the treatment of equine asthma. Vet J 2024:106125. [PMID: 38704018 DOI: 10.1016/j.tvjl.2024.106125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 04/22/2024] [Accepted: 04/26/2024] [Indexed: 05/06/2024]
Abstract
Although horses with asthma share similar clinical signs, the heterogeneity of the disease in terms of severity, triggering factors, inflammatory profile, and pathological features has hindered our ability to define biologically distinct subgroups. The recognition of phenotypes and endotypes could enable the development of precision medicine, including personalized, targeted therapy, to benefit affected horses. While in its infancy in horses, this review outlines the phenotypes of equine asthma and discusses how knowledge gained from targeted therapy in human medicine can be applied to evaluate the potential opportunities for personalized medicine in equine asthma and to suggest avenues for research to advance this emerging field.
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Affiliation(s)
- Laurence Leduc
- Department of Clinical Sciences, Faculté de Médecine Vétérinaire, Université de Montréal, St-Hyacinthe, QC, J2S 2M2, Canada
| | - Mathilde Leclère
- Department of Clinical Sciences, Faculté de Médecine Vétérinaire, Université de Montréal, St-Hyacinthe, QC, J2S 2M2, Canada
| | - Jean-Pierre Lavoie
- Department of Clinical Sciences, Faculté de Médecine Vétérinaire, Université de Montréal, St-Hyacinthe, QC, J2S 2M2, Canada.
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Al-Jarsha MY, Ayoub AF, Almgran MM, Liu CH, Robertson DP, Naudi KB. The precision of drill calibration for dynamic navigation. J Dent 2024; 146:105032. [PMID: 38703809 DOI: 10.1016/j.jdent.2024.105032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 04/24/2024] [Accepted: 04/30/2024] [Indexed: 05/06/2024] Open
Abstract
OBJECTIVES To quantify the reproducibility of the drill calibration process in dynamic navigation guided placement of dental implants and to identify the human factors that could affect the precision of this process in order to improve the overall implant placement accuracy. METHODS A set of six drills and four implants were calibrated by three operators following the standard calibration process of NaviDent® (ClaroNav Inc.). The reproducibility of the position of each tip of a drill or implant was calculated in relation to the pre-planned implants' entry and apex positions. Intra- and inter-operator reliabilities were reported. The effects of the drill length and shape on the reproducibility of the calibration process were also investigated. The outcome measures for reproducibility were expressed in terms of variability range, average and maximum deviations from the mean distance. RESULTS A satisfactory inter-rater reproducibility was noted. The precision of the calibration of the tip position in terms of variability range was between 0.3 and 3.7 mm. We noted a tendency towards a higher precision of the calibration process with longer drills. More calibration errors were observed when calibrating long zygomatic implants with non-locking adapters than with pointed drills. Flexible long-pointed drills had low calibration precision that was comparable to the non-flexible short-pointed drills. CONCLUSION The clinicians should be aware of the calibration error associated with the dynamic navigation placement of dental and zygomatic implants. This should be taken in consideration especially for long implants, short drills, and long drills that have some degree of flexibility. CLINICAL SIGNIFICANCE Dynamic navigation procedures are associated with an inherent drill calibration error. The manual stability during the calibration process is crucial in minimising this error. In addition, the clinician must never ignore the prescribed accuracy checking procedures after each calibration process.
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Affiliation(s)
- Mohammed Y Al-Jarsha
- Department of Oral Surgery, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom; Department of Oral and Maxillofacial Surgery, College of Dentistry, University of Baghdad, Baghdad, Iraq
| | - Ashraf F Ayoub
- Department of Oral Surgery, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom.
| | - Mohammed M Almgran
- Department of Oral Surgery, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Chieh-Han Liu
- Department of Oral Surgery, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Douglas P Robertson
- Department of Restorative Dentistry, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Kurt B Naudi
- Department of Oral Surgery, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
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Alghauli M, Alqutaibi AY, Wille S, Kern M. 3D-printed versus conventionally milled zirconia for dental clinical applications: Trueness, precision, accuracy, biological and esthetic aspects. J Dent 2024; 144:104925. [PMID: 38471580 DOI: 10.1016/j.jdent.2024.104925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 02/11/2024] [Accepted: 03/04/2024] [Indexed: 03/14/2024] Open
Abstract
OBJECTIVES This systematic review aimed to compare the clinical outcome, internal gap, trueness, precision, and biocompatibility of 3D-printed (AM) compared to milled (SM) zirconia restorations. DATA SOURCE A thorough search of Internet databases was conducted up to September 2023. The search retrieved studies compared AM zirconia to SM zirconia restorations regarding clinical outcome, fit, trueness, precision, and biocompatibility. STUDY SELECTION Of 1736 records, only 59 were screened for eligibility, and 22 records were included in this review. The quality of studies was assessed using the revised Cochrane risk-of-bias tool (ROB2), and the Modified Consort Statement. One clinical study exhibited a low risk of bias. All laboratory studies revealed some bias concerns. Short-term observation showed 100 % survival with no signs of periodontal complications. 3D-printed zirconia crowns showed statistically significant lower ΔE and a better match to adjacent teeth (p ≤ 0.5). The fit, trueness, and precision vary with the printing technique and the tooth surface. CONCLUSIONS 3D-printed zirconia crowns provide better aesthetic color and contour match to adjacent natural teeth than milled crowns. Both 3D printing and milling result in crowns within the clinically acceptable internal and marginal fit. Except for nanoparticle jetting, the marginal gap of SM crowns was smaller than AM crowns, however, both were clinically acceptable. Laminate veneers might be more accurately produced by 3D printing. 3D-printed axial surface trueness was better than milled axial surfaces. Long-term RCTs are recommended to confirm the clinical applicability of 3D-printed restorations. CLINICAL SIGNIFICANCE Internal fit and gap, precision, and trueness are fundamental requirements for successful dental restorations. Both techniques produce restorations with clinically acceptable marginal and internal fit. Axial surfaces and narrow or constricted areas favored 3D-printed than conventionally milled zirconia.
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Affiliation(s)
- Mohammed Alghauli
- Prosthodontics Department, College of Dentistry, Ibb University, Yemen; Department of Prosthodontic, Propaedeutic and Dental Materials, Faculty of Dentistry, Kiel University, Kiel, Germany.
| | - Ahmed Yaseen Alqutaibi
- Prosthodontics Department, College of Dentistry, Ibb University, Yemen; Prosthodontics Department, College of Dentistry, Taibah University, Al-Madinah, Saudi Arabia
| | - Sebastian Wille
- Department of Prosthodontic, Propaedeutic and Dental Materials, Faculty of Dentistry, Kiel University, Kiel, Germany
| | - Matthias Kern
- Department of Prosthodontic, Propaedeutic and Dental Materials, Faculty of Dentistry, Kiel University, Kiel, Germany
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Rana D, Beladiya J, Sheth D, Salave S, Sharma A, Jindal AB, Patel R, Benival D. Precise Fabrication of Ocular Inserts Using an Innovative Laser-Driven CaliCut Technology: In Vitro and in Vivo Evaluation. J Pharm Sci 2024; 113:1339-1350. [PMID: 38123067 DOI: 10.1016/j.xphs.2023.12.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 12/14/2023] [Accepted: 12/14/2023] [Indexed: 12/23/2023]
Abstract
Ocular inserts offer distinct advantages, including a preservative-free drug delivery system, the ability to provide tailored drug release, and ease of administration. The present research paper delves into the development of an innovative ocular insert using CaliCut technology. Complementing the hot melt extrusion (HME) process, CaliCut, an advanced technology in ocular insert development, employs precision laser gauging to achieve impeccable cutting of inserts with desired dimensions. Its intelligent control over the stretching process through auto feedback-based belt speed adjustment ensures unparalleled accuracy and consistency in dosage form manufacturing. Dry eye disease (DED) poses a significant challenge to ocular health, necessitating innovative approaches to alleviate its symptoms. In this pursuit, castor oil has emerged as a promising therapeutic agent, offering beneficial effects by increasing the thickness of the lipid layer in the tear film, thus improving tear film stability, and reducing tear evaporation. To harness these advantages, this study focuses on the development and comprehensive characterization of castor oil-based ocular inserts. Additionally, in-vivo irritancy evaluation in rabbits has been undertaken to assess the inserts' safety and biocompatibility. By harnessing the HME and CaliCut techniques in the formulation process, the study demonstrates their instrumental role in facilitating the successful development of ocular inserts.
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Affiliation(s)
- Dhwani Rana
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research -Ahmedabad (NIPER-A), India
| | - Jayesh Beladiya
- Department of Pharmacology, L.M. College of Pharmacy, Ahmedabad, India
| | - Devang Sheth
- Department of Pharmacology, L.M. College of Pharmacy, Ahmedabad, India
| | - Sagar Salave
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research -Ahmedabad (NIPER-A), India
| | - Amit Sharma
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research -Ahmedabad (NIPER-A), India
| | - Anil B Jindal
- Department of Pharmacy, Birla Institute of Technology and Science Pilani (BITS PILANI), Pilani Campus, Rajasthan, 333031, India
| | - Rikin Patel
- Graduate School of Pharmacy, Gujarat Technological University Gandhinagar Campus, Gandhinagar, 382028, India
| | - Derajram Benival
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research -Ahmedabad (NIPER-A), India.
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León-Valladares D, Barrio-Mateu LA, Cortés-Carmona N, Fuentes-Lizana G, Cabanas AM, Latorre-Progulakis K, Fuentes-Guajardo M, Martín-Escudero P. Determining factors of pulse oximetry accuracy: a literature review. Rev Clin Esp 2024; 224:314-330. [PMID: 38599519 DOI: 10.1016/j.rceng.2024.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 03/17/2024] [Indexed: 04/12/2024]
Abstract
OBJECTIVE Identify and reach consensus on the variables that affect the measurement of oxygen saturation using pulse oximetry. METHODS We applied inclusion and exclusion criteria to select relevant studies in databases such as Ebsco and PubMed. The search strategies, carried out until December 2023, focused on publications that addressed the technology of pulse oximeters and variables that influence their accuracy. We assessed the risk of bias of the included studies and used standardized methods for synthesis of results. RESULTS 23 studies were included. The synthesis of the results highlighted that equipment with tetrapolar technology showed greater precision in oxygen saturation measurements. Increased skin pigmentation, hemoglobinopathies and high skin temperatures can lead to an overestimation of SpO2, while factors such as low perfusion, cold skin temperature, nail polish or tattoos, hypoxemia, anemia and high altitude training, they may underestimate it. On the other hand, motion artifacts, light pollution, frequency >150 beats per minute, electromagnetic interference and location of the sensor can cause distortion of the photoplethymography signal. CONCLUSIONS The synthesis of the results highlighted that skin pigmentation and light interference can lead to an overestimation of SpO2, while other factors such as low perfusion and altitude tend to underestimate it. The studies presented variability and heterogeneity in their designs, evidencing limitations in the consistency and precision of the evidence. Despite these limitations, the results underscore the importance of considering multiple variables when interpreting pulse oximetry measurements to ensure their reliability. The findings have significant implications for clinical practice and future research.
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Affiliation(s)
- D León-Valladares
- Departamento de Ciencias de la Actividad Física y del Deporte, Facultad de Educación y Humanidades, Universidad de Tarapacá, Arica, Chile.
| | - L A Barrio-Mateu
- Departamento de Ciencias de la Actividad Física y del Deporte, Facultad de Educación y Humanidades, Universidad de Tarapacá, Arica, Chile
| | - N Cortés-Carmona
- Estudiante Semillero de Investigación, Departamento de Ciencias de la Actividad Física y del Deporte, Facultad de Educación y Humanidades, Universidad de Tarapacá, Arica, Chile
| | - G Fuentes-Lizana
- Estudiante Semillero de Investigación, Departamento de Ciencias de la Actividad Física y del Deporte, Facultad de Educación y Humanidades, Universidad de Tarapacá, Arica, Chile
| | - A M Cabanas
- Departamento de Física, Facultad de Ciencias, Universidad de Tarapacá, Arica, Chile
| | - K Latorre-Progulakis
- Departamento de Tecnología Médica, Facultad de Ciencias de la Salud, Universidad de Tarapacá, Arica, Chile
| | - M Fuentes-Guajardo
- Departamento de Tecnología Médica, Facultad de Ciencias de la Salud, Universidad de Tarapacá, Arica, Chile
| | - P Martín-Escudero
- Escuela de Medicina del Deporte, Departamento de Radiología, Rehabilitación y Fisioterapia, Facultad de Medicina. UCM
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12
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Ghanem RG, Badr AMI, Agamy EMTM, Eyüboğlu TF, Özcan M. Digital Evaluation of Trueness and Precision of Modern Impression Materials in Implant- Retained Mandibular Overdentures. Eur J Prosthodont Restor Dent 2024. [PMID: 38691584 DOI: 10.1922/ejprd_2638ghanem11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 04/07/2024] [Indexed: 05/03/2024]
Abstract
INTRODUCTION The purpose of this in vitro study was to evaluate the dimensional accuracy, trueness, and precision of vinyl siloxane ether (VSXE) and polyvinylsiloxane (PVS) impression materials using different impression techniques. MATERIAL AND METHODS A three-dimensional (3D) printed mandibular model with implants and metal rods served as the reference model. Impressions were taken in custom trays, resulting in four groups: PVS-closed-tray, VSXE-closed-tray, PVS-open-tray, and VSXE-open-tray. The reference model and impressions were scanned and analyzed using 3D analysis software to assess the trueness and precision within each group. RESULTS There was significant difference in trueness between the groups, with PVS closed tray showing a higher deviation than VSXE-closed-tray and PVS-open-tray. VSXE-open-tray had the lowest deviation, which was statistically significant. In terms of precision, PVS-closed-tray showed the highest deviation, while no significant differences were found among the other groups. CONCLUSIONS VSXE impression material with an open tray technique consistently demonstrated the highest levels of accuracy and precision. Conversely, PVS impression material with a closed tray technique yielded less favorable results. CLINICAL RELEVANCE Better understanding of trueness and precision of new impression materials with new impression techniques will increase their clinical effectiveness.
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Affiliation(s)
- R G Ghanem
- Department of Prosthodontics, Faculty of Dentistry, Ahram Canadian University, Egypt
| | - A M I Badr
- Department of Prosthodontics, Faculty of Dentistry, Minia University, Egypt
| | - E M T M Agamy
- Department of Prosthodontics, Faculty of Dentistry, Minia University, Egypt
- Dean, Faculty of Dentistry Delta University, Egypt
| | - T F Eyüboğlu
- Department of Endodontics, Faculty of Dentistry, Istanbul Medipol University, Istanbul, Turkey
| | - M Özcan
- Clinic of Masticatory Disorders and Dental Biomaterials, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
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13
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Marimuthu J, Loudon KMW, Karayakallile Abraham R, Pamarla V, Gardner GE. Predicting lamb carcase composition from tissue depth measured at a single point with an ultrawide-band microwave scanner. Meat Sci 2024; 213:109509. [PMID: 38642510 DOI: 10.1016/j.meatsci.2024.109509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Revised: 03/27/2024] [Accepted: 04/04/2024] [Indexed: 04/22/2024]
Abstract
This study evaluated the ability of portable ultra-wide band microwave system (MiS) to predict lamb carcase computed tomography (CT) determined composition % of fat, lean muscle and bone. Lamb carcases (n = 343) from 6 slaughter groups were MiS scanned at the C-site (45 mm from spine midline at the 12th /13th rib) prior to CT scanning to determine the proportion of fat, muscle and bone. A machine learning ensemble stacking technique was used to construct the MiS prediction equations. Predictions were pooled and divided in 5 groups stratified for each CT composition trait (fat, lean or bone%) and a k-fold cross validation (k = 5) technique was used to test the predictions. MiS predicted CT fat% with an average RMSEP of 2.385, R2 0.78, bias 0.156 and slope 0.095. The prediction of CT lean% had an average RMSEP of 2.146, R2 0.64, bias 0.172 and slope 0.117. CT bone% prediction had an average RMSEP of 0.990, R2 0.75, bias 0.051 and slope 0.090. Predictions for CT bone% met AUS-MEAT device accreditation error tolerances on the whole range of the dataset. Predictions for CT lean% and fat% met AUS-MEAT error tolerances on a constrained dataset.
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Affiliation(s)
- J Marimuthu
- School of Agricultural Sciences, Centre for Animal Production and Health, Food Futures Institute, Murdoch University, WA 6150, Australia; Advanced Livestock Measurement Technologies Project, Meat and Livestock Australia, NSW 2060, Australia
| | - K M W Loudon
- School of Agricultural Sciences, Centre for Animal Production and Health, Food Futures Institute, Murdoch University, WA 6150, Australia; Advanced Livestock Measurement Technologies Project, Meat and Livestock Australia, NSW 2060, Australia.
| | - R Karayakallile Abraham
- School of Agricultural Sciences, Centre for Animal Production and Health, Food Futures Institute, Murdoch University, WA 6150, Australia; Advanced Livestock Measurement Technologies Project, Meat and Livestock Australia, NSW 2060, Australia
| | - V Pamarla
- School of Agricultural Sciences, Centre for Animal Production and Health, Food Futures Institute, Murdoch University, WA 6150, Australia; Advanced Livestock Measurement Technologies Project, Meat and Livestock Australia, NSW 2060, Australia
| | - G E Gardner
- School of Agricultural Sciences, Centre for Animal Production and Health, Food Futures Institute, Murdoch University, WA 6150, Australia; Advanced Livestock Measurement Technologies Project, Meat and Livestock Australia, NSW 2060, Australia
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14
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Filler G, Ahmad F, Bhayana V, Díaz González de Ferris ME, Sharma AP. Limitations of U25 CKiD and CKD-EPI eGFR formulae in patients 2-20 years of age with measured GFR > 60 mL/min/1.73 m 2-a cross-sectional study. Pediatr Nephrol 2024; 39:1169-1176. [PMID: 37840039 DOI: 10.1007/s00467-023-06185-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 09/22/2023] [Accepted: 09/26/2023] [Indexed: 10/17/2023]
Abstract
BACKGROUND When applying Pierce U25 formula for estimating glomerular filtration rate (eGFR), we observed a higher proportion of eGFR < 90 mL/min/1.73 m2 (chronic kidney disease (CKD) stage 2). We compared agreement and accuracy of the Pierce U25 (ages 2-25), Pottel (ages 2-100), and CKD-EPI (ages 18-100) formulae to GFR measurements. METHODS Post hoc analysis of the three eGFRs compared to 367 99m technetium-diethylene-triamine penta-acetic acid (99Tc DTPA) GFR measurements (240 patients) using 3 sampling points and Brockner/Mørtensen correction (body surface area calculation based on ideal weight) on simultaneous serum creatinine and cystatin C measurements. RESULTS Overall, the U25 formula performed well with a Spearman r of 0.8102 (95% confidence interval 0.7706 to 0.8435, p < 0.0001) while diagnostic accuracy was low in patients with normal mGFR. The U25 formula reclassified 29.5% of patients with normal mGFR as CKD stage 2; whereas the average of the modified Schwartz formula based on serum creatinine and the Filler formula based on cystatin C, only over-diagnosed CKD stage 2 in 8.5%, 24.5% within 10% and 62.7% within 30%. We therefore combined both. The average Schwartz/Filler eGFR had 36.5% of results within 10%, 84.7% within 30%, and normal mGFR accuracy was 26.8%, 63.9% for 10% and 30%, respectively, outperforming the CKD-EPI and Pottel formulae. CONCLUSIONS The Pierce U25 formula results correlated well with mGFR < 75 mL/min/1.73 m2. Over the entire GFR range, accuracy was better for patients with a higher mGFR, when averaging the combined Schwartz/Filler formulae. More work is needed to prospectively confirm our findings in other centers.
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Affiliation(s)
- Guido Filler
- Department of Pediatrics, Schulich School of Medicine & Dentistry, Western University, London, ON, N6A 5W9, Canada.
- Department of Medicine, Schulich School of Medicine & Dentistry, Western University, 800 Commissioners Road East, E3-206, London, ON, N6A 5W9, Canada.
- The Lilibeth Caberto Kidney Clinical Research Unit, London Health Sciences Centre, London, ON, N6A 5W9, Canada.
| | - Fateh Ahmad
- Department of Pathology and Laboratory Medicine, Schulich School of Medicine & Dentistry, Western University, London, ON, N6A 5W9, Canada
| | - Vipin Bhayana
- Department of Pathology and Laboratory Medicine, Schulich School of Medicine & Dentistry, Western University, London, ON, N6A 5W9, Canada
| | | | - Ajay P Sharma
- Department of Pediatrics, Schulich School of Medicine & Dentistry, Western University, London, ON, N6A 5W9, Canada
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Feng L, Khalil U, Aslam B, Ghaffar B, Tariq A, Jamil A, Farhan M, Aslam M, Soufan W. Evaluation of soil texture classification from orthodox interpolation and machine learning techniques. Environ Res 2024; 246:118075. [PMID: 38159666 DOI: 10.1016/j.envres.2023.118075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 12/19/2023] [Accepted: 12/27/2023] [Indexed: 01/03/2024]
Abstract
The current investigation examines the effectiveness of various approaches in predicting the soil texture class (clay, silt, and sand contents) of the Rawalpindi district, Punjab province, Pakistan. The employed techniques included artificial neural networks (ANNs), kriging, co-kriging, and inverse distance weighting (IDW). A total of 44 soil specimens from depths of 10-15 cm were gathered, and then the hydrometer method was adopted to measure their texture. The map of soil grain sets was formulated in the ArcGIS environment, utilizing distinct interpolation approaches. The MATLAB software was used to evaluate soil texture. The gradient fraction, latitude and longitude, elevation, and soil texture fragments of points were proposed to an ANN. Several statistical values, such as correlation coefficient (R), geometric mean error ratios (GMER), and root mean square error (RMSE), were utilized to evaluate the precision of the intended techniques. In assessing grain size and spatial dissemination of clay, silt, and sand, the effectiveness and precision of ANN were superior compared to kriging, co-kriging, and inverse distance weighting. Still, less than a 50% correlation was observed using the ANN. In this examination, the IDW had inferior precision compared to the other approaches. The results demonstrated that the practices produced acceptable results and can be used for future research. Soil texture is among the most central variables that can manipulate agriculture plans. The prepared maps exhibiting the soil texture groups are imperative for crop yield and pastoral scheduling.
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Affiliation(s)
- Lei Feng
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, China; College of Environment and Ecology, Chongqing University, Chongqing, China
| | - Umer Khalil
- ITC Faculty of Geo-information Science and Earth Observation, University of Twente, Enschede, the Netherlands
| | - Bilal Aslam
- Department of Earth Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Bushra Ghaffar
- Department of Environmental Science, Faculty of Sciences, International Islamic University, Islamabad, Pakistan
| | - Aqil Tariq
- Department of Wildlife, Fisheries and Aquaculture, College of Forest Resources, Mississippi State University, 775 Stone Boulevard, Mississippi State, MS, 39762-9690, USA.
| | - Ahsan Jamil
- Department of Plant and Environmental Sciences, New Mexico State University, 3170S Espina Str., Las Cruces, NM, 88003, USA
| | - Muhammad Farhan
- School of Earth Sciences and Engineering, Hohai University, Nanjing, 211100, China
| | - Muhammad Aslam
- Department of Computer Science, Aberystwyth University, UK
| | - Walid Soufan
- Plant Production Department, College of Food and Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh, 11451, Saudi Arabia
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Wyffels PAH, De Hert S, Wouters PF. Measurement error of pulse pressure variation. J Clin Monit Comput 2024; 38:313-323. [PMID: 38064135 DOI: 10.1007/s10877-023-01099-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 10/21/2023] [Indexed: 04/06/2024]
Abstract
Dynamic preload parameters are used to guide perioperative fluid management. However, reported cut-off values vary and the presence of a gray zone complicates clinical decision making. Measurement error, intrinsic to the calculation of pulse pressure variation (PPV) has not been studied but could contribute to this level of uncertainty. The purpose of this study was to quantify and compare measurement errors associated with PPV calculations. Hemodynamic data of patients undergoing liver transplantation were extracted from the open-access VitalDatabase. Three algorithms were applied to calculate PPV based on 1 min observation periods. For each method, different durations of sampling periods were assessed. Best Linear Unbiased Prediction was determined as the reference PPV-value for each observation period. A Bayesian model was used to determine bias and precision of each method and to simulate the uncertainty of measured PPV-values. All methods were associated with measurement error. The range of differential and proportional bias were [- 0.04%, 1.64%] and [0.92%, 1.17%] respectively. Heteroscedasticity influenced by sampling period was detected in all methods. This resulted in a predicted range of reference PPV-values for a measured PPV of 12% of [10.2%, 13.9%] and [10.3%, 15.1%] for two selected methods. The predicted range in reference PPV-value changes for a measured absolute change of 1% was [- 1.3%, 3.3%] and [- 1.9%, 4%] for these two methods. We showed that all methods that calculate PPV come with varying degrees of uncertainty. Accounting for bias and precision may have important implications for the interpretation of measured PPV-values or PPV-changes.
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Affiliation(s)
- Piet A H Wyffels
- Department of Basic and Applied Sciences, Ghent University, Corneel Heymanslaan 10, 9000, Ghent, Belgium.
- Department of Anaesthesiology and Perioperative Medicine, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium.
| | - Stefan De Hert
- Department of Basic and Applied Sciences, Ghent University, Corneel Heymanslaan 10, 9000, Ghent, Belgium
- Department of Anaesthesiology and Perioperative Medicine, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium
| | - Patrick F Wouters
- Department of Basic and Applied Sciences, Ghent University, Corneel Heymanslaan 10, 9000, Ghent, Belgium
- Department of Anaesthesiology and Perioperative Medicine, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium
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Kumar AS, Venkatesalu S, Dilliyappan S, Pasupulla AP, Prathap L, Palaniyandi T, Baskar G, Ravi M, Sugumaran A. Microfluidics as diagnostic tools. Clin Chim Acta 2024; 556:117841. [PMID: 38395126 DOI: 10.1016/j.cca.2024.117841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 02/17/2024] [Accepted: 02/18/2024] [Indexed: 02/25/2024]
Abstract
The challenges in the management of human diseases are largely determined by the precision, speed and ease of diagnostic procedures available. Developments in biomedical engineering technologies have greatly helped in transforming human health care, especially for disease diagnosis which in turn lead to better patient outcomes. One such development is in the form of microfluidic chip technology which has transformed various aspects of human health care. We present in this review, a comprehensive account on the utility of microfluidic chip technologies for the diagnosis of autoimmune disorders, cardiovascular diseases (CVDs), infectious diseases, and neurodegenerative conditions. We have included the diseases posing global threat such as rheumatoid arthritis, diabetes, pernicious anemia, tuberculosis, COVID-19, influenza, alzheimer's, multiple sclerosis, and epilepsy. Apart from discussing the ways of microfluidic chip in diagnosis, we included a section presenting electrochemical, electrical, optical, and acoustic detection technologies for the precise diagnosis of CVDs. Microfluidics platforms have thus revolutionized novel capabilities in addressing the requirements of point-of-care diagnostics enabling miniaturization by integrating multiple laboratory functions into a single chip resulting in "one flow - one solution" systems. Hence, the precision and early diagnoses of diseases are now possible due to the advancements of microfluidics-based technology.
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Affiliation(s)
- Avanthika Satish Kumar
- Department of Biotechnology, Dr. M.G.R. Educational and Research Institute, Chennai, India
| | - Sneha Venkatesalu
- Department of Biotechnology, Dr. M.G.R. Educational and Research Institute, Chennai, India
| | | | - Ajay Prakash Pasupulla
- Oral and Maxillofacial Pathologist, School of Medicine, College of Health Sciences, Nigist Eleni Comprehensive Specialized Hospital, Wachemo University, Hossana, Ethiopia, East Africa
| | - Lavanya Prathap
- Department of Anatomy, Biomedical Research Unit and Laboratory Animal Centre, Saveetha Dental College and Hospital, SIMATS, Saveetha University, Chennai, India
| | - Thirunavukkarasu Palaniyandi
- Department of Biotechnology, Dr. M.G.R. Educational and Research Institute, Chennai, India; Department of Anatomy, Biomedical Research Unit and Laboratory Animal Centre, Saveetha Dental College and Hospital, SIMATS, Saveetha University, Chennai, India.
| | - Gomathy Baskar
- Department of Biotechnology, Dr. M.G.R. Educational and Research Institute, Chennai, India
| | - Maddaly Ravi
- Department of Human Genetics, Sri Ramachandra Institute of Higher Education and Research, Chennai, India
| | - Abimanyu Sugumaran
- Department of Pharmaceutical Sciences, Assam University, Silchar, Assam, India
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Wang Y, Li Y, Liang S, Yuan F, Liu Y, Ye H, Zhou Y. THE ACCURACY OF INTRAORAL SCAN IN OBTAINING DIGITAL IMPRESSIONS OF EDENTULOUS ARCHES: A SYSTEMATIC REVIEW. J Evid Based Dent Pract 2024; 24:101933. [PMID: 38448118 DOI: 10.1016/j.jebdp.2023.101933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 09/28/2023] [Accepted: 10/10/2023] [Indexed: 03/08/2024]
Abstract
OBJECTIVES Accuracy is a crucial factor when assessing the quality of digital impressions. This systematic review aims to assess the accuracy of intraoral scan (IOS) in obtaining digital impressions of edentulous jaws. METHODS This systematic review adhered to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) and was registered in the International Prospective Register of Systematic Reviews (PROSPERO ID: CRD42022382983). A thorough retrieval of 7 electronic databases was undertaken, encompassing MEDLINE (PubMed), Web of Science, EMBASE, Scopus, Cochrane Library, Virtual Health Library, and Open gray, through September 11, 2023. A snowball search was performed by tracing the reference lists of the included studies. The Population, Intervention, Comparison, and Outcome (PICO) question of this systematic review was: "What is the accuracy of intraoral scan in obtaining digital impressions of edentulous arches?" The Modified Methodological Index for Nonrandomized Studies (MINORS) was employed to assess the risk of bias. RESULTS Among the studies retrieved from databases and manual search, a total of 25 studies were selected for inclusion in this systematic review, including 9 in vivo and 16 in vitro studies. Twenty-one of the included studies utilized the 3D deviation analysis method, while 4 studies employed the linear or angular deviation analysis method. The accuracy results of in vitro studies indicated a trueness range of 20-600 μm and a precision range of 2-700 μm. Results of in vivo studies indicated a trueness range of 40-1380 μm, while the precision results were not reported. CONCLUSION According to the results of this study, direct digital impressions by IOS cannot replace the conventional impressions of completely edentulous arches in vivo. Edentulous digital impressions by IOS demonstrated poor accuracy in peripheral areas with mobile tissues, such as the soft palate, vestibular sulcus, and sublingual area.
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Affiliation(s)
- Yiyang Wang
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials, Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, Beijing, P.R. China
| | - Yaning Li
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials, Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, Beijing, P.R. China
| | - Shanshan Liang
- Center of Digital Dentistry, Second Clinical Division, Peking University School and Hospital of Stomatology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials, Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, Beijing, P.R. China
| | - Fusong Yuan
- Center of Digital Dentistry, Peking University School and Hospital of Stomatology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, Beijing, P.R. China
| | - Yunsong Liu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials, Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, Beijing, P.R. China
| | - Hongqiang Ye
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials, Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, Beijing, P.R. China.
| | - Yongsheng Zhou
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials, Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, Beijing, P.R. China
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Pizzo H, Nguyen J, Schwartz GJ, Wesseling-Perry K, Ettenger R, Chambers ET, Weng P. Comparison of estimated GFR using cystatin C versus creatinine in pediatric kidney transplant recipients. Pediatr Nephrol 2024:10.1007/s00467-024-06316-6. [PMID: 38427073 DOI: 10.1007/s00467-024-06316-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 02/01/2024] [Accepted: 02/01/2024] [Indexed: 03/02/2024]
Abstract
BACKGROUND An accurate, rapid estimate of glomerular filtration rate (GFR) in kidney transplant patients affords early detection of transplant deterioration and timely intervention. This study compared the performance of serum creatinine (Cr) and cystatin C (CysC)-based GFR equations to measured GFR (mGFR) using iohexol among pediatric kidney transplant recipients. METHODS CysC, Cr, and mGFR were obtained from 45 kidney transplant patients, 1-18 years old. Cr- and CysC-estimated GFR (eGFR) was compared against mGFR using the Cr-based (Bedside Schwartz, U25-Cr), CysC-based (Gentian CysC, CAPA, U25-CysC), and Cr-CysC combination (CKiD Cr-CysC, U25 Cr-CysC) equations in terms of bias, precision, and accuracy. Bland-Altman plots assessed the agreement between eGFR and mGFR. Secondary analyses evaluated the formulas in patients with biopsy-proven histological changes, and K/DOQI CKD staging. RESULTS Bias was small with Gentian CysC (0.1 ml/min/1.73 m2); 88.9% and 37.8% of U25-CysC estimations were within 30% and 10% of mGFR, respectively. In subjects with histological changes on biopsy, Gentian CysC had a small bias and U25-CysC were more accurate-both with 83.3% of and 41.7% of estimates within 30% and 10% mGFR, respectively. Precision was better with U25-CysC, CKiD Cr-CysC, and U25 Cr-CysC. Bland-Altman plots showed the Bedside Schwartz, Gentian CysC, CAPA, and U25-CysC tend to overestimate GFR when > 100 ml/min/1.72 m2. CAPA misclassified CKD stage the least (whole cohort 24.4%, histological changes on biopsy 33.3%). CONCLUSIONS In this small cohort, CysC-based equations with or without Cr may have better bias, precision, and accuracy in predicting GFR.
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Affiliation(s)
- Helen Pizzo
- Department of Pediatrics, Cedars-Sinai Medical Center, 8700 Beverly Blvd., Los Angeles, CA, 90048, USA.
| | - John Nguyen
- Children's Hospital of Orange County, Orange, CA, USA
| | | | - Katherine Wesseling-Perry
- Phoenix Children's Hospital, Phoenix, AZ, USA
- University of Arizona College of Medicine, Phoenix, AZ, USA
| | - Robert Ettenger
- David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | | | - Patricia Weng
- David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
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Dagle JM, Hunter SK, Colaizy TT, McElroy SJ, Harmon HM, McNamara PJ, Klein JM. Care from Birth to Discharge of Infants Born at 22 to 23 Weeks' Gestation. Crit Care Nurs Clin North Am 2024; 36:23-33. [PMID: 38296373 DOI: 10.1016/j.cnc.2023.08.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
The clinical care of infants born at 22 weeks' gestation must be well-designed and standardized if optimal results are to be expected. Although several approaches to care in this vulnerable population are possible, protocols should be neither random nor inconsistent. We describe the approach taken at the University of Iowa Stead Family Children's Hospital neonatal intensive care unit with respect to preterm infants born at 22 weeks' gestation. We have chosen to present our standardize care plan with respect to prenatal, neurologic, nutritional, gastrointestinal, and skin management. Respiratory and cardiopulmonary care will be briefly reviewed, as these strategies have been published previously.
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Affiliation(s)
- John M Dagle
- Division of Neonatology, Department of Pediatrics, University of Iowa, Iowa City, IA, USA; University of Iowa Stead Family Children's Hospital, Iowa City, IA, USA.
| | - Stephen K Hunter
- Department of Obstetrics & Gynecology, University of Iowa, Iowa City, IA, USA
| | - Tarah T Colaizy
- Division of Neonatology, Department of Pediatrics, University of Iowa, Iowa City, IA, USA; University of Iowa Stead Family Children's Hospital, Iowa City, IA, USA
| | - Steve J McElroy
- Division of Neonatology, Department of Pediatrics, University of California, Davis, Sacramento, CA, USA
| | - Heidi M Harmon
- Division of Neonatology, Department of Pediatrics, University of Iowa, Iowa City, IA, USA; University of Iowa Stead Family Children's Hospital, Iowa City, IA, USA
| | - Patrick J McNamara
- Division of Neonatology, Department of Pediatrics, University of Iowa, Iowa City, IA, USA; University of Iowa Stead Family Children's Hospital, Iowa City, IA, USA; Department of Internal Medicine, University of Iowa, Iowa City, IA, USA
| | - Jonathan M Klein
- Division of Neonatology, Department of Pediatrics, University of Iowa, Iowa City, IA, USA; University of Iowa Stead Family Children's Hospital, Iowa City, IA, USA
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Schoeller F, Jain A, Pizzagalli DA, Reggente N. The neurobiology of aesthetic chills: How bodily sensations shape emotional experiences. Cogn Affect Behav Neurosci 2024:10.3758/s13415-024-01168-x. [PMID: 38383913 DOI: 10.3758/s13415-024-01168-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/21/2024] [Indexed: 02/23/2024]
Abstract
The phenomenon of aesthetic chills-shivers and goosebumps associated with either rewarding or threatening stimuli-offers a unique window into the brain basis of conscious reward because of their universal nature and simultaneous subjective and physical counterparts. Elucidating the neural mechanisms underlying aesthetic chills can reveal fundamental insights about emotion, consciousness, and the embodied mind. What is the precise timing and mechanism of bodily feedback in emotional experience? How are conscious feelings and motivations generated from interoceptive predictions? What is the role of uncertainty and precision signaling in shaping emotions? How does the brain distinguish and balance processing of rewards versus threats? We review neuroimaging evidence and highlight key questions for understanding how bodily sensations shape conscious feelings. This research stands to advance models of brain-body interactions shaping affect and may lead to novel nonpharmacological interventions for disorders of motivation and pleasure.
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Affiliation(s)
- Felix Schoeller
- Institute for Advanced Consciousness Studies, Santa Monica, CA, USA.
- Media Lab, Massachusetts Institute of Technology, Cambridge, MA, USA.
| | - Abhinandan Jain
- Media Lab, Massachusetts Institute of Technology, Cambridge, MA, USA
| | | | - Nicco Reggente
- Institute for Advanced Consciousness Studies, Santa Monica, CA, USA
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22
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Alam MK, Alftaikhah SAA, Issrani R, Ronsivalle V, Lo Giudice A, Cicciù M, Minervini G. Applications of artificial intelligence in the utilisation of imaging modalities in dentistry: A systematic review and meta-analysis of in-vitro studies. Heliyon 2024; 10:e24221. [PMID: 38317889 PMCID: PMC10838702 DOI: 10.1016/j.heliyon.2024.e24221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 01/02/2024] [Accepted: 01/04/2024] [Indexed: 02/07/2024] Open
Abstract
Background In the past, dentistry heavily relied on manual image analysis and diagnostic procedures, which could be time-consuming and prone to human error. The advent of artificial intelligence (AI) has brought transformative potential to the field, promising enhanced accuracy and efficiency in various dental imaging tasks. This systematic review and meta-analysis aimed to comprehensively evaluate the applications of AI in dental imaging modalities, focusing on in-vitro studies. Methods A systematic literature search was conducted, in accordance with the PRISMA guidelines. The following databases were systematically searched: PubMed/MEDLINE, Embase, Web of Science, Scopus, IEEE Xplore, Cochrane Library, CINAHL (Cumulative Index to Nursing and Allied Health Literature), and Google Scholar. The meta-analysis employed fixed-effects models to assess AI accuracy, calculating odds ratios (OR) for true positive rate (TPR), true negative rate (TNR), positive predictive value (PPV), and negative predictive value (NPV) with 95 % confidence intervals (CI). Heterogeneity and overall effect tests were applied to ensure the reliability of the findings. Results 9 studies were selected that encompassed various objectives, such as tooth segmentation and classification, caries detection, maxillofacial bone segmentation, and 3D surface model creation. AI techniques included convolutional neural networks (CNNs), deep learning algorithms, and AI-driven tools. Imaging parameters assessed in these studies were specific to the respective dental tasks. The analysis of combined ORs indicated higher odds of accurate dental image assessments, highlighting the potential for AI to improve TPR, TNR, PPV, and NPV. The studies collectively revealed a statistically significant overall effect in favor of AI in dental imaging applications. Conclusion In summary, this systematic review and meta-analysis underscore the transformative impact of AI on dental imaging. AI has the potential to revolutionize the field by enhancing accuracy, efficiency, and time savings in various dental tasks. While further research in clinical settings is needed to validate these findings and address study limitations, the future implications of integrating AI into dental practice hold great promise for advancing patient care and the field of dentistry.
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Affiliation(s)
- Mohammad Khursheed Alam
- Preventive Dentistry Department, College of Dentistry, Jouf University, Sakaka, 72345, Saudi Arabia
- Department of Dental Research Cell, Saveetha Institute of Medical and Technical Sciences, Saveetha Dental College and Hospitals, Chennai, 600077, India
- Department of Public Health, Faculty of Allied Health Sciences, Daffodil International University, Dhaka, 1207, Bangladesh
| | | | - Rakhi Issrani
- Preventive Dentistry Department, College of Dentistry, Jouf University, Sakaka, 72345, Saudi Arabia
| | - Vincenzo Ronsivalle
- Department of Biomedical and Surgical and Biomedical Sciences, Catania University, 95123, Catania, Italy
| | - Antonino Lo Giudice
- Department of Biomedical and Surgical and Biomedical Sciences, Catania University, 95123, Catania, Italy
| | - Marco Cicciù
- Department of Biomedical and Surgical and Biomedical Sciences, Catania University, 95123, Catania, Italy
| | - Giuseppe Minervini
- Multidisciplinary Department of Medical-Surgical and Odontostomatological Specialties, University of Campania “Luigi Vanvitelli”, 80121, Naples, Italy
- Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Science (SIMATS), Saveetha University, Chennai, Tamil Nadu, India
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Bardhan S, Bhargava N, Dighe S, Vats N, Naganathan SR. Emergence of a left-right symmetric body plan in vertebrate embryos. Curr Top Dev Biol 2024; 159:310-342. [PMID: 38729680 DOI: 10.1016/bs.ctdb.2024.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2024]
Abstract
External bilateral symmetry is a prevalent feature in vertebrates, which emerges during early embryonic development. To begin with, vertebrate embryos are largely radially symmetric before transitioning to bilaterally symmetry, after which, morphogenesis of various bilateral tissues (e.g somites, otic vesicle, limb bud), and structures (e.g palate, jaw) ensue. While a significant amount of work has probed the mechanisms behind symmetry breaking in the left-right axis leading to asymmetric positioning of internal organs, little is known about how bilateral tissues emerge at the same time with the same shape and size and at the same position on the two sides of the embryo. By discussing emergence of symmetry in many bilateral tissues and structures across vertebrate model systems, we highlight that understanding symmetry establishment is largely an open field, which will provide deep insights into fundamental problems in developmental biology for decades to come.
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Affiliation(s)
- Siddhartha Bardhan
- Department of Biological Sciences, Tata Institute of Fundamental Research, Mumbai, India
| | - Nandini Bhargava
- Department of Biological Sciences, Tata Institute of Fundamental Research, Mumbai, India
| | - Swarali Dighe
- Department of Biological Sciences, Tata Institute of Fundamental Research, Mumbai, India
| | - Neha Vats
- Department of Biological Sciences, Tata Institute of Fundamental Research, Mumbai, India
| | - Sundar Ram Naganathan
- Department of Biological Sciences, Tata Institute of Fundamental Research, Mumbai, India.
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Teixeira da Silva JA. A switch in letters leads to the "creation" of Eszett (ß)-catenin rather than beta (β)-catenin. Naunyn Schmiedebergs Arch Pharmacol 2024:10.1007/s00210-024-02979-y. [PMID: 38300344 DOI: 10.1007/s00210-024-02979-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Accepted: 01/23/2024] [Indexed: 02/02/2024]
Abstract
A simple replacement-most likely due to a linguistic error-of the Greek letter beta (β) by the German letter Eszett (ß), has led to the introduction of an error in a body of literature related to beta (β)-catenin, resulting in the "creation" of a non-existent compound and false positive, Eszett (ß)-catenin. A search on 9 December 2023 in PubMed for ß-catenin and β-catenin revealed 395 and 45,919 results, respectively. The 25 results of ß-catenin published in 2023 were examined in more detail to appreciate the location(s) in each paper where this error had occurred. While the scientific findings of these studies do not seem to be impacted by this error, authors and editors would need to weigh the need or benefit of correcting this error.
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25
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Mangano FG, Cianci D, Pranno N, Lerner H, Zarone F, Admakin O. Trueness, precision, time-efficiency and cost analysis of chairside additive and subtractive versus lab-based workflows for manufacturing single crowns: An in vitro study. J Dent 2024; 141:104792. [PMID: 38013004 DOI: 10.1016/j.jdent.2023.104792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 11/21/2023] [Accepted: 11/23/2023] [Indexed: 11/29/2023] Open
Abstract
PURPOSE To evaluate the trueness, precision, time efficiency, and cost of three different workflows for manufacturing single crowns (SCs). METHODS A plaster model with a prepared tooth (#15) was scanned with an industrial scanner, and an SC was designed in computer-assisted-design (CAD) software. Ten SCs were printed with a hybrid composite (additive chairside) and a stereolithographic (SLA) printer (Dfab®), 10 SCs were milled in lithium disilicate (subtractive chairside) using a chairside milling unit (inLab MC XL®), and 10 SCs were milled in zirconia (lab-based) using a five-axis laboratory machine (DWX-52D®). All SCs were scanned with the same scanner after polymerization/sinterization. Each scan was superimposed to the marginal area of the original CAD file to evaluate trueness: absolute average (ABS AVG), root mean square (RMS), and (90˚-10˚)/2 percentile were calculated for each group. Marginal adaptation and quality of the occlusal and interproximal contact points were also investigated by two prosthodontists on 3D printed and plaster models. Finally, the three workflows' time efficiency and costs were evaluated. RESULTS Additive chairside and subtractive lab-based SCs had significantly better marginal trueness than subtractive chairside SCs in all three parameters (ABS AVG, p < 0.01; RMS, p < 0.01; [90˚-10˚]/2, p < 0.01). However, the two prosthodontists found no significant differences between the three manufacturing procedures in the quality of the marginal closure (p = 0.186), interproximal (p = 0.319), and occlusal contacts (p = 0.218). Both time efficiency and cost show a trend favoring the chairside additive workflow. CONCLUSIONS Chairside additive technology seems to represent a valid alternative for manufacturing definitive SCs, given the high marginal trueness, precision, workflow efficiency and low costs. STATEMENT OF CLINICAL RELEVANCE Additive chairside manufacturing of definitive hybrid composite SCs is now possible and shows high accuracy, time efficiency, and competitive cost.
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Affiliation(s)
- Francesco Guido Mangano
- Department of Pediatric, Preventive Dentistry and Orthodontics, Sechenov First State Medical University, Moscow, Russia.
| | | | - Nicola Pranno
- Department of Oral and Maxillofacial Sciences, Sapienza University, Rome, Italy
| | - Henriette Lerner
- Department of Oral, Maxillofacial and Plastic Surgery, Goethe University, Frankfurt, Germany
| | - Fernando Zarone
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, University Federico II, Naples, Italy
| | - Oleg Admakin
- Department of Pediatric, Preventive Dentistry and Orthodontics, Sechenov First State Medical University, Moscow, Russia
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26
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Avellan S, Mabrouk A, Taillebot V, Pithioux M, Ollivier M. Using a patient-specific cutting guide enables identical knee osteotomies: An evaluation of accuracy on sawbones. Orthop Traumatol Surg Res 2024:103813. [PMID: 38218221 DOI: 10.1016/j.otsr.2024.103813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 12/22/2023] [Accepted: 01/08/2024] [Indexed: 01/15/2024]
Abstract
PURPOSE It was hypothesized that using a Patient-Specific Cutting Guide (PSCG) would allow the creation of sawbones model osteotomies, identical in the 3 planes and the hinge parameters, that can be used for biomechanical studies. The aim of the study was to evaluate the accuracy of the PSCG system and to introduce and assess the new hinge parameter; the hinge area. METHODS Six identical sawbones tibia models were identically set up for identical osteotomy cuts by the same surgeon in the same session and with identical instruments. A medical scanner was used to evaluate the 3D configuration of all the specimens. The analyzed parameters included the cutting angles in both the coronal and sagittal planes (degrees) and the hinge and the slicing areas (cm2), and the hinge thickness (mm). The values were statistically evaluated for average, standard deviation, 95% confidence index, and delta to the expected values were calculated. RESULTS The mean values for the coronal and sagittal angles were 110.5̊±1̊ and 89.8̊±0.8̊, respectively. The 95% confidence index level ranged between 0.1̊, and 0.8̊ in both the coronal & the sagittal planes. The mean values for the hinge thickness, the hinge area, and the slicing area were 12.7±1.5mm, 4.2±0.9 cm2, and 18.3±1.2 cm2, respectively. CONCLUSION In the presented study, it can be demonstrated that mechanically identical osteotomy specimens, with regard to the cutting planes and hinge parameters, can be reliably created using the PSCG. The identical specimens can be used for biomechanical research purposes to further expand our knowledge of the factors affecting osteotomy outcomes. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Sébastien Avellan
- Aix Marseille Univ, CNRS, ISM, 13009 Marseille, France; Aix Marseille Univ, APHM, CNRS, ISM, Sainte-Marguerite Hospital, Institute for Locomotion, Department of Orthopaedics and Traumatology, 13009 Marseille, France; BIOBank®, Tissue Bank, Lieusaint, France
| | - Ahmed Mabrouk
- Aix Marseille Univ, APHM, CNRS, ISM, Sainte-Marguerite Hospital, Institute for Locomotion, Department of Orthopaedics and Traumatology, 13009 Marseille, France; Leeds Teaching Hospitals, Leeds, United Kingdom
| | - Virginie Taillebot
- Aix Marseille Univ, CNRS, ISM, 13009 Marseille, France; Aix Marseille Univ, APHM, CNRS, ISM, Sainte-Marguerite Hospital, Institute for Locomotion, Department of Orthopaedics and Traumatology, 13009 Marseille, France.
| | - Martine Pithioux
- Aix Marseille Univ, CNRS, ISM, 13009 Marseille, France; Aix Marseille Univ, APHM, CNRS, ISM, Sainte-Marguerite Hospital, Institute for Locomotion, Department of Orthopaedics and Traumatology, 13009 Marseille, France
| | - Matthieu Ollivier
- Aix Marseille Univ, CNRS, ISM, 13009 Marseille, France; Aix Marseille Univ, APHM, CNRS, ISM, Sainte-Marguerite Hospital, Institute for Locomotion, Department of Orthopaedics and Traumatology, 13009 Marseille, France
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Francisco Barbosa F, Mermudes JRM, Russo CAM. Performance of tree-building methods using a morphological dataset and a well-supported Hexapoda phylogeny. PeerJ 2024; 12:e16706. [PMID: 38213769 PMCID: PMC10782957 DOI: 10.7717/peerj.16706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 11/30/2023] [Indexed: 01/13/2024] Open
Abstract
Recently, many studies have addressed the performance of phylogenetic tree-building methods (maximum parsimony, maximum likelihood, and Bayesian inference), focusing primarily on simulated data. However, for discrete morphological data, there is no consensus yet on which methods recover the phylogeny with better performance. To address this lack of consensus, we investigate the performance of different methods using an empirical dataset for hexapods as a model. As an empirical test of performance, we applied normalized indices to effectively measure accuracy (normalized Robinson-Foulds metric, nRF) and precision, which are measured via resolution, one minus Colless' consensus fork index (1-CFI). Additionally, to further explore phylogenetic accuracy and support measures, we calculated other statistics, such as the true positive rate (statistical power) and the false positive rate (type I error), and constructed receiver operating characteristic plots to visualize the relationship between these statistics. We applied the normalized indices to the reconstructed trees from the reanalyses of an empirical discrete morphological dataset from extant Hexapoda using a well-supported phylogenomic tree as a reference. Maximum likelihood and Bayesian inference applying the k-state Markov (Mk) model (without or with a discrete gamma distribution) performed better, showing higher precision (resolution). Additionally, our results suggest that most available tree topology tests are reliable estimators of the performance measures applied in this study. Thus, we suggest that likelihood-based methods and tree topology tests should be used more often in phylogenetic tree studies based on discrete morphological characters. Our study provides a fair indication that morphological datasets have robust phylogenetic signal.
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Affiliation(s)
| | | | - Claudia A. M. Russo
- Genetics, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
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28
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Kotani A, Watanabe R, Hayashi Y, Machida K, Hakamata H. Statistical reliability of a relative standard deviation of chromatographic peak area estimated by a chemometric tool based on the FUMI theory. J Pharm Biomed Anal 2024; 237:115777. [PMID: 37844361 DOI: 10.1016/j.jpba.2023.115777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 09/20/2023] [Accepted: 10/09/2023] [Indexed: 10/18/2023]
Abstract
In pharmaceutical analysis using a high-performance liquid chromatography (HPLC) system, repeatability assessment is significant to obtain reliable and precise quantitative results. The purpose of the present study is to experimentally show the statistical reliability of a relative standard deviation (RSD) of peak area estimated by a chemometric tool based on probability theory, called the function of mutual information (FUMI) theory, which stochastically provided an RSD of peak area and SD of baseline areas with width k (s(k)) from noises and a signal on a single chromatogram. An ultra-high-performance liquid chromatography with ultraviolet detection (UHPLC-UV) for determining ergosterol was applied as an example of the repeatability assessment. In addition, the statistical reliability of an RSD of peak area in the UHPLC-UV system was certified according to a chi-square (χ2) distribution. The 712 values of s(k) were experimentally obtained from a data series of 1001 points in the noise regions of 712 chromatograms. The histogram of χ2 of s(k) was well-fitted to the χ2 distribution curve (freedom degree, ν = 50), indicating that the statistical reliability of an RSD of the peak area in the UHPLC-UV estimated by the FUMI theory (n = 1) was equivalent to that estimated by 50 runs of chromatographic measurements.
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Affiliation(s)
- Akira Kotani
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan.
| | - Ryo Watanabe
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Yuzuru Hayashi
- Institute for FUMI Theory, 3-3-15 Inaridai, Sakura, Chiba 285-0864, Japan
| | - Koichi Machida
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Hideki Hakamata
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
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Huang Z, Duan X, Zhu G, Zhang S, Wang R, Wang Z. Assessing the data quality of AdHawk MindLink eye-tracking glasses. Behav Res Methods 2024:10.3758/s13428-023-02310-2. [PMID: 38168041 DOI: 10.3758/s13428-023-02310-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/30/2023] [Indexed: 01/05/2024]
Abstract
Most commercially available eye-tracking devices rely on video cameras and image processing algorithms to track gaze. Despite this, emerging technologies are entering the field, making high-speed, cameraless eye-tracking more accessible. In this study, a series of tests were conducted to compare the data quality of MEMS-based eye-tracking glasses (AdHawk MindLink) with three widely used camera-based eye-tracking devices (EyeLink Portable Duo, Tobii Pro Glasses 2, and SMI Eye Tracking Glasses 2). The data quality measures assessed in these tests included accuracy, precision, data loss, and system latency. The results suggest that, overall, the data quality of the eye-tracking glasses was lower compared to that of a desktop EyeLink Portable Duo eye-tracker. Among the eye-tracking glasses, the accuracy and precision of the MindLink eye-tracking glasses were either higher or on par with those of Tobii Pro Glasses 2 and SMI Eye Tracking Glasses 2. The system latency of MindLink was approximately 9 ms, significantly lower than that of camera-based eye-tracking devices found in VR goggles. These results suggest that the MindLink eye-tracking glasses show promise for research applications where high sampling rates and low latency are preferred.
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Affiliation(s)
- Zehao Huang
- Center for Psychological Sciences, Zhejiang University, 148 Tianmushan Rd., Hangzhou, 310028, China
| | - Xiaoting Duan
- Center for Psychological Sciences, Zhejiang University, 148 Tianmushan Rd., Hangzhou, 310028, China
| | - Gancheng Zhu
- Center for Psychological Sciences, Zhejiang University, 148 Tianmushan Rd., Hangzhou, 310028, China
| | - Shuai Zhang
- Center for Psychological Sciences, Zhejiang University, 148 Tianmushan Rd., Hangzhou, 310028, China
| | - Rong Wang
- Center for Psychological Sciences, Zhejiang University, 148 Tianmushan Rd., Hangzhou, 310028, China
| | - Zhiguo Wang
- Center for Psychological Sciences, Zhejiang University, 148 Tianmushan Rd., Hangzhou, 310028, China.
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Ning R, Wang Y, Xu Z, Gustafsson I, Li J, Savini G, Schiano-Lomoriello D, Xiao Y, Chen A, Wang X, Zhou X, Huang J. Assessing progression limits in different grades of keratoconus from a novel perspective: precision of measurements of the corneal epithelium. Eye Vis (Lond) 2024; 11:1. [PMID: 38163895 PMCID: PMC10759576 DOI: 10.1186/s40662-023-00368-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 12/05/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND To assess repeatability and reproducibility of corneal epithelium thickness (ET) measured by a spectral-domain optical coherence tomographer (SD-OCT)/Placido topographer (MS-39, CSO, Florence, Italy) in keratoconus (KC) population at different stages, as well as to determine the progression limits for evaluating KC progression. METHODS A total of 149 eyes were enrolled in this study, with 29 eyes in the forme fruste keratoconus (FFKC) group, 34 eyes in the mild KC group, 40 eyes in the moderate KC group, and 46 eyes in the severe KC group. Employing the within-subject standard deviation (Sw), test-retest variability (TRT), coefficient of variation (CoV), and intraclass correlation coefficient (ICC) to evaluate intraoperator repeatability and interoperator reproducibility. RESULTS The repeatability and reproducibility of MS-39 in patients with KC were acceptable, according to ICC values ranging from 0.732 to 0.954. However, patients with more severe KC and progressive peripheralization of the measurement points had higher TRTs but a thinning trend. The current study tended to set the cut-off values of mild KC, moderate KC, and severe KC to 4.9 µm, 5.2 µm, and 7.4 µm for thinnest epithelium thickness (TET). When differences between follow-ups are higher than those values, progression of the disease is possible. As for center epithelium thickness (CET), cut-off values for mild KC, moderate KC, and severe KC should be 2.8 µm, 4.4 µm, and 5.3 µm. This might be useful in the follow-up and diagnosis of keratoconus. CONCLUSIONS This study demonstrated that the precision of MS-39 was reduced in measuring more severe KC patients and more peripheral corneal points. In determining disease progression, values should be differentiated between disease-related real changes and measurement inaccuracies. Due to the large difference in ET measured by MS-39 between various stages of disease progression, it is necessary to accurately grade KC patients to avoid errors in KC clinical decision-making.
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Affiliation(s)
- Rui Ning
- Eye Institute and Department of Ophthalmology and Vision Science, Institute for Medical and Engineering Innovation, Eye and ENT Hospital, Fudan University, N No.19 Baoqing Road, Xuhui District, Shanghai, 200031, China
- Shanghai Research Center of Ophthalmology and Optometry, Shanghai, China
- NHC Key Laboratory of Myopia (Fudan University), Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
| | - Yiran Wang
- Eye Institute and Department of Ophthalmology and Vision Science, Institute for Medical and Engineering Innovation, Eye and ENT Hospital, Fudan University, N No.19 Baoqing Road, Xuhui District, Shanghai, 200031, China
- Shanghai Research Center of Ophthalmology and Optometry, Shanghai, China
- NHC Key Laboratory of Myopia (Fudan University), Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
| | - Zhenyu Xu
- Eye Institute and Department of Ophthalmology and Vision Science, Institute for Medical and Engineering Innovation, Eye and ENT Hospital, Fudan University, N No.19 Baoqing Road, Xuhui District, Shanghai, 200031, China
- Shanghai Research Center of Ophthalmology and Optometry, Shanghai, China
- NHC Key Laboratory of Myopia (Fudan University), Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
| | - Ingemar Gustafsson
- Department of Clinical Sciences, Ophthalmology, Lund University, Skåne University Hospital, Malmö, Sweden
| | - Jiawei Li
- Eye Institute and Department of Ophthalmology and Vision Science, Institute for Medical and Engineering Innovation, Eye and ENT Hospital, Fudan University, N No.19 Baoqing Road, Xuhui District, Shanghai, 200031, China
- Shanghai Research Center of Ophthalmology and Optometry, Shanghai, China
- NHC Key Laboratory of Myopia (Fudan University), Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
| | | | | | - Yichen Xiao
- Eye Institute and Department of Ophthalmology and Vision Science, Institute for Medical and Engineering Innovation, Eye and ENT Hospital, Fudan University, N No.19 Baoqing Road, Xuhui District, Shanghai, 200031, China
- Shanghai Research Center of Ophthalmology and Optometry, Shanghai, China
- NHC Key Laboratory of Myopia (Fudan University), Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
| | - Aodong Chen
- Eye Institute and Department of Ophthalmology and Vision Science, Institute for Medical and Engineering Innovation, Eye and ENT Hospital, Fudan University, N No.19 Baoqing Road, Xuhui District, Shanghai, 200031, China
- Shanghai Research Center of Ophthalmology and Optometry, Shanghai, China
- NHC Key Laboratory of Myopia (Fudan University), Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
| | - Xiaoying Wang
- Eye Institute and Department of Ophthalmology and Vision Science, Institute for Medical and Engineering Innovation, Eye and ENT Hospital, Fudan University, N No.19 Baoqing Road, Xuhui District, Shanghai, 200031, China
- Shanghai Research Center of Ophthalmology and Optometry, Shanghai, China
- NHC Key Laboratory of Myopia (Fudan University), Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
| | - Xingtao Zhou
- Eye Institute and Department of Ophthalmology and Vision Science, Institute for Medical and Engineering Innovation, Eye and ENT Hospital, Fudan University, N No.19 Baoqing Road, Xuhui District, Shanghai, 200031, China.
- Shanghai Research Center of Ophthalmology and Optometry, Shanghai, China.
- NHC Key Laboratory of Myopia (Fudan University), Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China.
| | - Jinhai Huang
- Eye Institute and Department of Ophthalmology and Vision Science, Institute for Medical and Engineering Innovation, Eye and ENT Hospital, Fudan University, N No.19 Baoqing Road, Xuhui District, Shanghai, 200031, China.
- Shanghai Research Center of Ophthalmology and Optometry, Shanghai, China.
- NHC Key Laboratory of Myopia (Fudan University), Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China.
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Velisar A, Shanidze NM. Noise estimation for head-mounted 3D binocular eye tracking using Pupil Core eye-tracking goggles. Behav Res Methods 2024; 56:53-79. [PMID: 37369939 PMCID: PMC11062346 DOI: 10.3758/s13428-023-02150-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/23/2023] [Indexed: 06/29/2023]
Abstract
Head-mounted, video-based eye tracking is becoming increasingly common and has promise in a range of applications. Here, we provide a practical and systematic assessment of the sources of measurement uncertainty for one such device - the Pupil Core - in three eye-tracking domains: (1) the 2D scene camera image; (2) the physical rotation of the eye relative to the scene camera 3D space; and (3) the external projection of the estimated gaze point location onto the target plane or in relation to world coordinates. We also assess eye camera motion during active tasks relative to the eye and the scene camera, an important consideration as the rigid arrangement of eye and scene camera is essential for proper alignment of the detected gaze. We find that eye camera motion, improper gaze point depth estimation, and erroneous eye models can all lead to added noise that must be considered in the experimental design. Further, while calibration accuracy and precision estimates can help assess data quality in the scene camera image, they may not be reflective of errors and variability in gaze point estimation. These findings support the importance of eye model constancy for comparisons across experimental conditions and suggest additional assessments of data reliability may be warranted for experiments that require the gaze point or measure eye movements relative to the external world.
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Affiliation(s)
- Anca Velisar
- The Smith-Kettlewell Eye Research Institute, 2318 Fillmore Street, San Francisco, CA, 94115, USA.
| | - Natela M Shanidze
- The Smith-Kettlewell Eye Research Institute, 2318 Fillmore Street, San Francisco, CA, 94115, USA
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Liu CT, Chen JH, Du JK, Hung CC, Lan TH. Accuracy comparison of scan segmental sequential ranges with two intraoral scanners for maxilla and mandible. J Dent Sci 2024; 19:466-472. [PMID: 38303839 PMCID: PMC10829747 DOI: 10.1016/j.jds.2023.09.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 09/04/2023] [Indexed: 02/03/2024] Open
Abstract
Background/purpose The accuracy of a full-arch scan by using an intraoral scanner should be validated under clinical conditions. This study aimed to compare the accuracy of full-arch digital impressions in the maxilla and mandible using two intra oral scanners with three different scan segmental sequential ranges. Materials and methods A dental model with 28 teeth in their normal positions served as the reference. Sixty full-arch scans were performed using Trios 3 and Trios 4, employing scanning strategy O (manufacturer's original method), OH (segmental sequential ranges one half), and TQ (segmental sequential ranges third quarter). Trueness was evaluated by comparing digital impressions with a reference dataset using specialized software. One-way ANOVA and Tukey tests assessed differences between the groups. Results For Trios 3 on the maxilla, no significant difference was found among the groups of trueness; in the mandible, strategy O exhibited a significant difference (P = 0.008) with the highest deviation. For Trios 4 on the maxilla, strategy TQ demonstrated the lowest deviation with a significant difference (P = 0.006); in the mandible, no significant difference was found among the groups of trueness. Conclusion Strategy TQ exhibited the best trueness for Trios 3 and Trios 4, suggesting it may be preferred for higher accuracy. Clinicians should consider these findings when selecting scanning strategies and intraoral scanners for specific cases.
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Affiliation(s)
- Chih-Te Liu
- Division of Prosthodontics, Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Jen-Hao Chen
- Division of Prosthodontics, Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Je-Kang Du
- Division of Prosthodontics, Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chun-Cheng Hung
- Division of Prosthodontics, Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Ting-Hsun Lan
- Division of Prosthodontics, Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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Gessner S. 'Si te omnimoda delectat precisio': early astronomical instruments with scales and the multiple meanings of precision in the sixteenth century. Ann Sci 2024; 81:30-59. [PMID: 38100568 DOI: 10.1080/00033790.2023.2285845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 11/16/2023] [Indexed: 12/17/2023]
Abstract
This paper explores the various meanings of precision during the early modern period in Europe. In contrast with existing literature focused on assessing the precision of early instruments, this study delves into the intended significance of the term 'precision' as understood by historical figures such as J. Stöffler, P. Nunes or F. Mordente. By analysing a selection of instruments equipped with scales, both in their physical form and as they are described in instrument texts, several facets of precision emerge. Some findings demonstrate that the precision of scales can be enhanced through corrections obtained from tables. In other cases, visual estimation is substituted with a method for obtaining values of multiple sexagesimal places. Furthermore, certain instruments designed to represent theoretical concepts achieve greater precision by incorporating the most intricate details of these notions. This investigation into lesser-known meanings of precision underscores the need of comprehensively exploring the concepts, the practices and the terminology surrounding precision that were in use over the fifteenth and sixteenth centuries.
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Affiliation(s)
- Samuel Gessner
- Center for the History of Science and Technology CIUHCT, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
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Ohnesorge M. The promises and pitfalls of precision: random and systematic error in physical geodesy, c. 1800-1910. Ann Sci 2024; 81:258-284. [PMID: 37995136 DOI: 10.1080/00033790.2023.2284335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 11/13/2023] [Indexed: 11/25/2023]
Abstract
This article discusses the ways in which nineteenth-century geodesists reflected on precision as an epistemic virtue in their measurement practice. Physical geodesy is often understood as a quintessential nineteenth-century precision science, stimulating advances in instrument making and statistics, and generating incredible quantities of data. Throughout most of the nineteenth century, geodesists indeed pursued their most prestigious research problem - the exact determination of the earth's polar flattening - along those lines. Treating measurement errors as random, they assumed that remaining discordances could be overcome by manufacturing better instruments and extending statistical analysis to a larger amount of data. In the second half of the nineteenth century, however, several German geodesists developed sophisticated methodological critiques of their discipline, in which they diagnosed a too-narrow focus on precision among their peers. On their account, geodesists urgently needed to identify and anticipate the causes of the remaining measurement errors that arose from the earth's little understood interior constitution. While mostly overlooked in the literature, these critiques paved the way for many empirical successes in late nineteenth- and early twentieth-century geodesy, including the first convergent measurements of the earth's polar flattening.
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Affiliation(s)
- Miguel Ohnesorge
- Department of History and Philosophy of Science, University of Cambridge, Cambridge, United Kingdom
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35
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Dunn R. On being sufficiently exact: assessing navigational instruments in the eighteenth century. Ann Sci 2024; 81:208-234. [PMID: 37976088 DOI: 10.1080/00033790.2023.2282779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 11/08/2023] [Indexed: 11/19/2023]
Abstract
This paper explores discussions centred on the activities of the British Board of Longitude to consider the ways in which some men of science, instrument makers and others thought about questions of precision and accuracy, both in principle and in terms of what was possible in practice when making observations at sea. It considers firstly the terminology used in some eighteenth- and early nineteenth-century texts, highlighting the concept of exactness, which was more commonly used to describe one of the desirable qualities of instruments and methods. It then looks at some of the discussions and debates in which the Board of Longitude was involved from the 1760s to think about different actors' expectations of what levels of exactness might be either desirable or possible for day-to-day navigation. The focus is on the ability to make accurate shipboard observations and on the question of what degree of exactness might have been accepted as good enough for routine navigational purposes when at sea.
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36
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Janetzki S. Important Considerations for ELISpot Validation. Methods Mol Biol 2024; 2768:1-13. [PMID: 38502384 DOI: 10.1007/978-1-0716-3690-9_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
The ELISpot assay has a solid place in the immune monitoring field for over 40 years. It is an assay that can assess the function of single immune cells in a straightforward and easy-to-learn approach. Its use in basic research, translational, and clinical work has been documented in countless publications. Harmonization guidelines and invaluable tools for optimal assay performance and evaluation exist. However, the validation of an established ELISpot protocol has been left to diverse opinions about how to interpret and tackle typical validation parameters. This chapter addresses important considerations for ELISpot validation, including the interpretations of validation parameters for a meaningful description of assay performance.
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37
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Mori Y, Jin EH, Lee D. Enhancing artificial intelligence-doctor collaboration for computer-aided diagnosis in colonoscopy through improved digital literacy. Dig Liver Dis 2023:S1590-8658(23)01072-1. [PMID: 38105144 DOI: 10.1016/j.dld.2023.11.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 10/16/2023] [Accepted: 11/22/2023] [Indexed: 12/19/2023]
Abstract
Establishing appropriate trust and maintaining a balanced reliance on digital resources are vital for accurate optical diagnoses and effective integration of computer-aided diagnosis (CADx) in colonoscopy. Active learning using diverse polyp image datasets can help in developing precise CADx systems. Enhancing doctors' digital literacy and interpreting their results is crucial. Explainable artificial intelligence (AI) addresses opacity, and textual descriptions, along with AI-generated content, deepen the interpretability of AI-based findings by doctors. AI conveying uncertainties and decision confidence aids doctors' acceptance of results. Optimal AI-doctor collaboration requires improving algorithm performance, transparency, addressing uncertainties, and enhancing doctors' optical diagnostic skills.
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Affiliation(s)
- Yuichi Mori
- Clinical Effectiveness Research Group, University of Oslo and Oslo University Hospital, Oslo, Norway; Department of Transplantation Medicine, Oslo University Hospital, Oslo, Norway; Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan
| | - Eun Hyo Jin
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea; Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, South Korea.
| | - Dongheon Lee
- Department of Biomedical Engineering, College of Medicine, Chungnam National University, Daejeon, South Korea; Department of Biomedical Engineering, Chungnam National University Hospital, Daejeon, South Korea
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Schmidt A, Berschin C, Wöstmann B, Schlenz MA. Chairside 3-D printed impression trays: a new approach to increase the accuracy of conventional implant impression taking? An in vitro study. Int J Implant Dent 2023; 9:47. [PMID: 38052992 DOI: 10.1186/s40729-023-00516-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 11/21/2023] [Indexed: 12/07/2023] Open
Abstract
PURPOSE A high transfer accuracy of the intraoral implant position to a model is required, to manufacture implant-supported restorations. However, clinically relevant deviations persist between the intraoral implant position and the model obtained, even for the benchmark conventional custom implant impressions with polyether. Thus, new approaches using 3-D printed impression trays may increase the transfer accuracy of implant impressions. The ability to adjust parameters such as the thickness of the layers and the influence of the openings in the impression tray could potentially affect accuracy. METHODS Four different types of impression trays (n = 10 for each group) for the conventional impression technique were investigated: conventional custom impression tray, customized foil tray, chairside 3-D printed impression tray with the SHERA system, and the Primeprint system using an implant master model with four implants in the posterior region and a reference cube. After plaster model casting, all models were measured using a coordinate measuring machine, and the deviation from the reference dataset was determined. A statistical ANOVA analysis was performed (p < 0.05). RESULTS Chairside 3-D printed impression trays showed the best results, followed by conventional custom impression trays. Implant impressions obtained using a customized foil tray exhibited the lowest accuracy. Statistically significant differences were observed between 3-D printed impression trays and conventional custom impression and customized foil trays (p < 0.05). Whereas, the implant position did not have any significant influence on accuracy (p > 0.05). CONCLUSIONS Chairside 3-D printed impression trays significantly increase the transfer accuracy for implant impression taking.
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Affiliation(s)
- Alexander Schmidt
- Department of Prosthodontics, Dental Clinic, Justus Liebig University, Schlangenzahl 14, 35392, Giessen, Germany
| | - Cara Berschin
- Department of Prosthodontics, Dental Clinic, Justus Liebig University, Schlangenzahl 14, 35392, Giessen, Germany
| | - Bernd Wöstmann
- Department of Prosthodontics, Dental Clinic, Justus Liebig University, Schlangenzahl 14, 35392, Giessen, Germany
| | - Maximiliane Amelie Schlenz
- Department of Prosthodontics, Dental Clinic, Justus Liebig University, Schlangenzahl 14, 35392, Giessen, Germany.
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Ayala-Dominguez L, Medina LA, Aceves C, Lizano M, Brandan ME. Accuracy and Precision of Iodine Quantification in Subtracted Micro-Computed Tomography: Effect of Reconstruction and Noise Removal Algorithms. Mol Imaging Biol 2023; 25:1084-1093. [PMID: 37012518 PMCID: PMC10728260 DOI: 10.1007/s11307-023-01810-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 02/26/2023] [Accepted: 02/28/2023] [Indexed: 04/05/2023]
Abstract
PURPOSE To evaluate the effect of reconstruction and noise removal algorithms on the accuracy and precision of iodine concentration (CI) quantified with subtracted micro-computed tomography (micro-CT). PROCEDURES Two reconstruction algorithms were evaluated: a filtered backprojection (FBP) algorithm and a simultaneous iterative reconstruction technique (SIRT) algorithm. A 3D bilateral filter (BF) was used for noise removal. A phantom study evaluated and compared the image quality, and the accuracy and precision of CI in four scenarios: filtered FBP, filtered SIRT, non-filtered FBP, and non-filtered SIRT. In vivo experiments were performed in an animal model of chemically-induced mammary cancer. RESULTS Linear relationships between the measured and nominal CI values were found for all the scenarios in the phantom study (R2 > 0.95). SIRT significantly improved the accuracy and precision of CI compared to FBP, as given by their lower bias (adj. p-value = 0.0308) and repeatability coefficient (adj. p-value < 0.0001). Noise removal enabled a significant decrease in bias in filtered SIRT images only; non-significant differences were found for the repeatability coefficient. The phantom and in vivo studies showed that CI is a reproducible imaging parameter for all the scenarios (Pearson r > 0.99, p-value < 0.001). The contrast-to-noise ratio showed non-significant differences among the evaluated scenarios in the phantom study, while a significant improvement was found in the in vivo study when SIRT and BF algorithms were used. CONCLUSIONS SIRT and BF algorithms improved the accuracy and precision of CI compared to FBP and non-filtered images, which encourages their use in subtracted micro-CT imaging.
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Affiliation(s)
- Lízbeth Ayala-Dominguez
- Departamento de Física Experimental, Instituto de Física, Universidad Nacional Autónoma de México, Circuito de La Investigación Científica, Ciudad Universitaria UNAM, Mexico City, 04510, Mexico.
- Department of Medical Physics, University of Wisconsin, 1111 Highland Ave, WI, Madison, 53705, USA.
| | - Luis-Alberto Medina
- Departamento de Física Experimental, Instituto de Física, Universidad Nacional Autónoma de México, Circuito de La Investigación Científica, Ciudad Universitaria UNAM, Mexico City, 04510, Mexico
- Unidad de Investigación Biomédica en Cáncer INCan-UNAM, Instituto Nacional de Cancerología, Av. San Fernando 22, Tlalpan, Mexico City, 14080, Mexico
| | - Carmen Aceves
- Departamento de Neurobiología Celular Y Molecular, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, Querétaro, Juriquilla, 76230, Mexico
| | - Marcela Lizano
- Unidad de Investigación Biomédica en Cáncer INCan-UNAM, Instituto Nacional de Cancerología, Av. San Fernando 22, Tlalpan, Mexico City, 14080, Mexico
- Departamento de Medicina Genómica Y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Circuito Exterior S/N, Ciudad Universitaria UNAM, Mexico City, 04510, Mexico
| | - Maria-Ester Brandan
- Departamento de Física Experimental, Instituto de Física, Universidad Nacional Autónoma de México, Circuito de La Investigación Científica, Ciudad Universitaria UNAM, Mexico City, 04510, Mexico
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Bansal S, Bae GY, Robinson BM, Dutterer J, Hahn B, Luck SJ, Gold JM. Qualitatively Different Delay-Dependent Working Memory Distortions in People With Schizophrenia and Healthy Control Participants. Biol Psychiatry Cogn Neurosci Neuroimaging 2023; 8:1218-1227. [PMID: 37459911 PMCID: PMC10792108 DOI: 10.1016/j.bpsc.2023.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 06/30/2023] [Accepted: 07/08/2023] [Indexed: 07/28/2023]
Abstract
BACKGROUND Impairments in working memory (WM) have been well documented in people with schizophrenia (PSZ). However, these quantitative WM impairments can often be explained by nonspecific factors, such as impaired goal maintenance. Here, we used a spatial orientation delayed response task to explore a qualitative difference in WM dynamics between PSZ and healthy control participants (HCs). More specifically, we took advantage of the discovery that WM representations may drift either toward or away from previous trial targets (serial dependence). We tested the hypothesis that WM representations would drift toward the previous trial target in HCs but away from the previous trial target in PSZ. METHODS We assessed serial dependence in PSZ (n = 31) and HCs (n = 25) using orientation as the to-be-remembered feature and memory delays lasting from 0 to 8 seconds. Participants were asked to remember the orientation of a teardrop-shaped object and reproduce the orientation after a delay period of varying length. RESULTS Consistent with prior studies, we found that current trial memory representations were less precise in PSZ than in HCs. We also found that WM for the current trial orientation drifted toward the previous trial orientation in HCs (representational attraction) but drifted away from the previous trial orientation in PSZ (representational repulsion). CONCLUSIONS These results demonstrate a qualitative difference in WM dynamics between PSZ and HCs that cannot be easily explained by nuisance factors such as reduced effort. Most computational neuroscience models also fail to explain these results because they maintain information solely by means of sustained neural firing, which does not extend across trials. The results suggest a fundamental difference between PSZ and HCs in longer-term memory mechanisms that persist across trials, such as short-term potentiation and neuronal adaptation.
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Affiliation(s)
- Sonia Bansal
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland, School of Medicine, Baltimore, Maryland.
| | - Gi-Yeul Bae
- Department of Psychology, Arizona State University, Tempe, Arizona
| | - Benjamin M Robinson
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland, School of Medicine, Baltimore, Maryland
| | - Jenna Dutterer
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland, School of Medicine, Baltimore, Maryland
| | - Britta Hahn
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland, School of Medicine, Baltimore, Maryland
| | - Steven J Luck
- Center for Mind & Brain and Department of Psychology, University of California, Davis, Davis, California
| | - James M Gold
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland, School of Medicine, Baltimore, Maryland
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Marques-Pamies M, Gil J, Jordà M, Puig-Domingo M. Predictors of Response to Treatment with First-Generation Somatostatin Receptor Ligands in Patients with Acromegaly. Arch Med Res 2023; 54:102924. [PMID: 38042683 DOI: 10.1016/j.arcmed.2023.102924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 10/27/2023] [Accepted: 11/17/2023] [Indexed: 12/04/2023]
Abstract
BACKGROUND AND AIMS Predictors of first-generation somatostatin receptor ligands (fgSRLs) response in acromegaly have been studied for over 30 years, but they are still not recommended in clinical guidelines. Is there not enough evidence to support their use? This systematic review aims to describe the current knowledge of the main predictors of fgSRLs response and discuss their current usefulness, as well as future research directions. METHODS A systematic search was performed in the Scopus and PubMed databases for functional, imaging, and molecular predictive factors. RESULTS A total of 282 articles were detected, of which 64 were included. Most of them are retrospective studies performed between 1990 and 2023 focused on the predictive response to fgSRLs in acromegaly. The usefulness of the predictive factors is confirmed, with good response identified by the most replicated factors, specifically low GH nadir in the acute octreotide test, T2 MRI hypointensity, high Somatostatin receptor 2 (SSTR2) and E-cadherin expression, and a densely granulated pattern. Even if these biomarkers are interrelated, the association is quite heterogeneous. With classical statistical methods, it is complex to define reliable and generalizable cut-off values worth recommending in clinical guidelines. Machine-learning models involving omics are a promising approach to achieve the highest accuracy values to date. CONCLUSIONS This survey confirms a sufficiently robust level of evidence to apply knowledge of predictive factors for greater efficiency in the treatment decision process. The irruption of artificial intelligence in this field is providing definitive answers to such long-standing questions that may change clinical guidelines and make personalized medicine a reality.
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Affiliation(s)
| | - Joan Gil
- Endocrine Research Unit, Germans Trias i Pujol Research Institute, Badalona, Spain; Network Research Center for Rare Diseases, CIBERER, Unit 747, Instituto de Salud Carlos III, Madrid, Spain; Department of Endocrinology, Research Center for Pituitary Diseases, Hospital Sant Pau, IIB-SPau, Barcelona, Spain
| | - Mireia Jordà
- Endocrine Research Unit, Germans Trias i Pujol Research Institute, Badalona, Spain
| | - Manel Puig-Domingo
- Endocrine Research Unit, Germans Trias i Pujol Research Institute, Badalona, Spain; Network Research Center for Rare Diseases, CIBERER, Unit 747, Instituto de Salud Carlos III, Madrid, Spain; Department of Endocrinology and Nutrition, Germans Trias i Pujol University Hospital, Badalona, Spain; Department of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain.
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Trpčić M, Perišić MM, Lukačević F, Škec S. Accuracy Analysis of Extraoral 3D Scanning in the Development of Dental Prosthetic. Acta Stomatol Croat 2023; 57:339-352. [PMID: 38283311 PMCID: PMC10812911 DOI: 10.15644/asc57/4/5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 08/13/2023] [Indexed: 01/30/2024] Open
Abstract
Objective The study has evaluated the accuracy (trueness and precision) of seven extraoral scanners when scanning two different types of jaws: simplified jaw with sharp edges and abutments and realistic jaw with natural teeth. The accuracies of extraoral scanners were compared, and their compliance with the required clinical accuracy levels was discussed. Material and methods Ten scans were made with each scanner for both models. The comparison of the selected dental scanners relied on reference scans made for both models. Trueness, precision, and the distribution and value of laboratory scan points' deviations were assessed for each scanner across the models. Results The trueness for the model of the simplified jaw with abutments ranged from 16.15 to 49.78 μm. The measured precision values for the same model ranged from 4.33 to 29.49 μm. For the model of the realistic jaw with natural teeth, the trueness results ranged from 11.32 to 24.55 μm, while the obtained precision values were between 2.29 and 18.06 μm. Conclusion The revealed dissimilarities in the accuracies of scanners and their ranking when scanning different models lead to the conclusion that model selection is critical for the research design. All the scanners met the clinical accuracy requirements and are suitable for use in laboratories for scanning jaws with abutments and jaws with natural teeth. However, the accuracy values reported by the manufacturers of scanners are better than those obtained in this study. Furthermore, the results suggested that blue light scanners outperform white light and laser scanners.
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Affiliation(s)
- Marija Trpčić
- Neo Dens, Fallerovo setaliste 2, 1000 Zagreb, Croatia
| | - Marija Majda Perišić
- Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, Croatia
| | - Fanika Lukačević
- Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, Croatia
| | - Stanko Škec
- Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, Croatia
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Miller EJ, Galsky MD. Precision Medicine in Urothelial Carcinoma: Current Markers to Guide Treatment and Promising Future Directions. Curr Treat Options Oncol 2023; 24:1870-1888. [PMID: 38085403 DOI: 10.1007/s11864-023-01151-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/17/2023] [Indexed: 01/11/2024]
Abstract
OPINION STATEMENT The treatment landscape for urothelial cancer has changed dramatically in the last 10 years, with the approval of several new treatments. At the same time, profiling of individual tumors has become more commonplace with widespread availability of molecular testing and immunohistochemistry. For urothelial cancer, this has led to current guidelines recommending that molecular testing be obtained in the metastatic setting, and that it be considered in the setting of locally advanced disease. Between molecular testing and immunohistochemistry testing of tumors, the only current guideline-directed application of these tests is in the identification of FGFR3 or FGFR2 alterations for use of FGFR inhibitors. While additional recurrent molecular alterations linked to the pathogenesis of urothelial cancer have been identified, the ability to successfully "drug" the pathways association with such alterations remains limited. There has been extensive research into whether expression of particular proteins might inform specific treatment approaches such as the use of PD-L1 testing to guide immune checkpoint blockade. With the integration of antibody-drug conjugates into the treatment armamentarium for urothelial cancer, ongoing research is seeking to determine whether expression of the targets of these therapies, such as Nectin 4, Trop-2, or HER2, could help to guide treatment.
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Affiliation(s)
- Eric J Miller
- Division of Hematology and Medical Oncology, Icahn School of Medicine at Mount Sinai/Tisch Cancer Institute, New York, NY, 10029, USA
| | - Matthew D Galsky
- Division of Hematology and Medical Oncology, Icahn School of Medicine at Mount Sinai/Tisch Cancer Institute, New York, NY, 10029, USA.
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Donmez MB, Güven ME, Yılmaz D, Abou-Ayash S, Çakmak G, Yilmaz B. Trueness and precision of combined healing abutment scan body system scans at different sites of maxilla after multiple repositioning of the scan body. J Dent 2023; 139:104716. [PMID: 37739057 DOI: 10.1016/j.jdent.2023.104716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/23/2023] [Accepted: 09/19/2023] [Indexed: 09/24/2023] Open
Abstract
OBJECTIVES To evaluate the accuracy of the scans of the combined healing abutment-scan body (CHA-SB) system located at different sites of the maxilla when SBs are replaced in between each scan. METHODS Three SBs were seated into HAs located at the central incisor, first premolar, and first molar sites of a maxillary model inside a phantom head, and the model was scanned extraorally (CEREC Primescan SW 5.2). This procedure was repeated with new SBs until a total of 10 scans were performed. Standard tessellation language files of CHA-SBs at each implant location were isolated, transferred into analysis software (Geomagic Control X), and superimposed over the proprietary library files to analyze surface (root mean square), linear, and angular deviations. Trueness and precision were evaluated with one-way analysis of variance and Tukey tests. The correlation between surface and angular deviations was analyzed with Pearson's correlation (α=0.05). RESULTS Molar implant scans had the highest surface and angular deviations (P≤.006), while central incisor implant scans had higher precision (surface deviations) than premolar implant scans (P=.041). Premolar implant scans had higher accuracy than central incisor implant scans on the y-axis (P≤.029). Central incisor implant scans had the highest accuracy on the z-axis (P≤.018). A strong positive correlation was observed between surface and angular deviations (r = 0.864, P<.001). CONCLUSION Central incisor implant scans mostly had high accuracy and molar implant scans mostly had lower trueness. SBs were mostly positioned apically; however, the effect of SB replacement can be considered small as measured deviations were similar to those in previous studies and the precision of scans was high. CLINICAL SIGNIFICANCE Repositioning of scan bodies into healing abutments would be expected to result in similar single crown positioning regardless of the location of the implant, considering high scan precision with the healing abutment-scan body system. The duration of the chairside adjustments of crowns in the posterior maxilla may be longer than those in the anterior region.
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Affiliation(s)
- Mustafa Borga Donmez
- Department of Prosthodontics, Faculty of Dentistry, Istinye University, Istanbul, Turkey; Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland.
| | - Mehmet Esad Güven
- Department of Prosthodontics, Faculty of Dentistry, Necmettin Erbakan University, Konya, Turkey
| | - Deniz Yılmaz
- Department of Prosthodontics, Faculty of Dentistry, Alanya Alaaddin Keykubat University, Antalya, Turkey
| | - Samir Abou-Ayash
- Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Gülce Çakmak
- Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Burak Yilmaz
- Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland; Department of Restorative, Preventive and Pediatric Dentistry, School of Dental Medicine, University of Bern, Bern, Switzerland; Division of Restorative and Prosthetic Dentistry, The Ohio State University College of Dentistry, Ohio, United States of America
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Hardan L, Bourgi R, Lukomska-Szymanska M, Hernández-Cabanillas JC, Zamarripa-Calderón JE, Jorquera G, Ghishan S, Cuevas-Suárez CE. Effect of scanning strategies on the accuracy of digital intraoral scanners: a meta-analysis of in vitro studies. J Adv Prosthodont 2023; 15:315-332. [PMID: 38205120 PMCID: PMC10774636 DOI: 10.4047/jap.2023.15.6.315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 11/28/2023] [Accepted: 12/15/2023] [Indexed: 01/12/2024] Open
Abstract
PURPOSE This study aimed to investigate whether the accuracy of intraoral scanners is influenced by different scanning strategies in an in vitro setting, through a systematic review and meta-analysis. MATERIALS AND METHODS This review was conducted in accordance with the PRISMA 2020 standard. The following PICOS approach was used: population, tooth impressions; intervention, the use of intraoral scanners with scanning strategies different from the manufacturer's instructions; control, the use of intraoral scanners following the manufacturers' requirements; outcome, accuracy of intraoral scanners; type of studies, in vitro. A comprehensive literature search was conducted across various databases including Embase, SciELO, PubMed, Scopus, and Web of Science. The inclusion criteria were based on in vitro studies that reported the accuracy of digital impressions using intraoral scanners. Analysis was performed using Review Manager software (version 5.3.5; Cochrane Collaboration, Copenhagen, Denmark). Global comparisons were made using a standardized mean difference based on random-effect models, with a significance level of α = 0.05. RESULTS The meta-analysis included 15 articles. Digital impression accuracy significantly improved under dry conditions (P < 0.001). Moreover, trueness and precision were enhanced when artificial landmarks were used (P ≤ 0.02) and when an S-shaped pattern was followed (P ≤ 0.01). However, the type of light used did not have a significant impact on the accuracy of the digital intraoral scanners (P ≥ 0.16). CONCLUSION The accuracy of digital intraoral scanners can be enhanced by employing scanning processes using artificial landmarks and digital impressions under dry conditions.
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Affiliation(s)
- Louis Hardan
- Department of Restorative Dentistry, School of Dentistry, Saint-Joseph University, Beirut, Lebanon
| | - Rim Bourgi
- Department of Restorative Dentistry, School of Dentistry, Saint-Joseph University, Beirut, Lebanon
- Department of Biomaterials and Bioengineering, INSERM UMR_S 1121, University of Strasbourg, Strasbourg, France
| | | | - Juan Carlos Hernández-Cabanillas
- Health Sciences Faculty, Autonomous University of Baja California, Blvd Universitario 1000 Valle de Las Palmas, Tijuana, B.C. Mexico
| | - Juan Eliezer Zamarripa-Calderón
- Dental Materials Laboratory, Academic Area of Dentistry, Autonomous University of Hidalgo State, San Agustín Tlaxiaca, Mexico
| | - Gilbert Jorquera
- Department of Prosthodontics, Universidad de los Andes, Santiago, Chile
| | | | - Carlos Enrique Cuevas-Suárez
- Dental Materials Laboratory, Academic Area of Dentistry, Autonomous University of Hidalgo State, San Agustín Tlaxiaca, Mexico
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García-Pérez MA, Alcalá-Quintana R. Accuracy and precision of responses to visual analog scales: Inter- and intra-individual variability. Behav Res Methods 2023; 55:4369-4381. [PMID: 36396834 PMCID: PMC10700476 DOI: 10.3758/s13428-022-02021-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/04/2022] [Indexed: 11/18/2022]
Abstract
Visual analog scales (VASs) are gaining popularity for collecting responses in computer administration of psychometric tests and surveys. The VAS format consists of a line marked at its endpoints with the minimum and maximum positions that it covers for respondents to place a mark at their selected location. Creating the line with intermediate marks along its length was discouraged, but no empirical evidence has ever been produced to show that their absence does any good. We report a study that asked respondents to place marks at pre-selected locations on a 100-unit VAS line, first when it only had numerical labels (0 and 100) at its endpoints and then when intermediate locations (from 0 to 100 in steps of 20) were also labeled. The results show that settings are more accurate and more precise when the VAS line has intermediate tick marks: The average absolute error decreased from 3.02 units without intermediate marks to 0.82 units with them. Provision of intermediate tick marks also reduced substantially inter- and intra-individual variability in accuracy and precision: The standard deviation of absolute error decreased from 0.87 units without tick marks to 0.25 units with them and the standard deviation of signed distance to target decreased from 1.16 units without tick marks to 0.24 units with them. These results prompt the recommendation that the design of VASs includes intermediate tick marks along the length of the line.
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Affiliation(s)
- Miguel A García-Pérez
- Departamento de Metodología, Facultad de Psicología, Universidad Complutense, Campus de Somosaguas, 28223, Madrid, Spain.
| | - Rocío Alcalá-Quintana
- Departamento de Metodología, Facultad de Psicología, Universidad Complutense, Campus de Somosaguas, 28223, Madrid, Spain
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Field-Fote EC. Mastering Our Own Magic in the Evolution Toward Precision Practice. Phys Ther 2023; 103:pzad149. [PMID: 38037195 DOI: 10.1093/ptj/pzad149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 05/13/2023] [Accepted: 07/09/2023] [Indexed: 12/02/2023]
Abstract
Edelle (Edee) Field-Fote, PT, PhD, FASIA, FAPTA, the 54th Mary McMillan lecturer, is director of the Shepherd Center Spinal Cord Injury Research Program & Hulse Laboratory; professor in the division of physical therapy at Emory University School of Medicine; and professor of the practice in the school of biological sciences at the Georgia Institute of Technology. In her role as the director of spinal cord injury (SCI) research at Shepherd Center, Field-Fote leads a team dedicated to improving motor function in people with SCI through the development of neuromodulation and neurorehabilitation approaches informed by the latest neuroscience research and guided by outcomes that have meaning for people with SCI. With a clinical background as a physical therapist, PhD training in a preclinical model of SCI, and postdoctoral training in motor control physiology, her 25-plus years of SCI research have spanned the breadth of basic and clinical/translational research related to SCI. Dr Field-Fote has conducted randomized clinical trials with funding from the National Institutes of Health since 1997; other clinical trials in her lab have been funded by the Department of Defense, the National Institute on Disability Independent Living and Rehabilitation Research, and numerous foundations. Field-Fote is the recipient of multiple honors from the American Physical Therapy Association (APTA) and its components. She is a Fellow of APTA and a Fellow of the American Spinal Injury Association. She has also served in numerous APTA and APTA component appointed or elected positions and as a member and president of the Foundation for Physical Therapy Research Board of Trustees.
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Affiliation(s)
- Edelle Carmen Field-Fote
- Shepherd Center, Crawford Research Institute, Atlanta, Georgia, USA
- Emory University, Division of Physical Therapy, Atlanta, Georgia, USA
- School of Biological Sciences, Georgia Institute of Techology, Atlanta, Georgia, USA
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Lee J, Bae SR, Noh HK. Commercial artificial intelligence lateral cephalometric analysis: part 2-effects of human examiners on artificial intelligence performance, a pilot study. J Clin Pediatr Dent 2023; 47:130-141. [PMID: 37997244 DOI: 10.22514/jocpd.2023.087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 05/12/2023] [Indexed: 11/25/2023] Open
Abstract
At the current technology level, a human examiner's review must be accompanied to compensate for the insufficient commercial artificial intelligence (AI) performance. This study aimed to investigate the effects of the human examiner's expertise on the efficacy of AI analysis, including time-saving and error reduction. Eighty-four pretreatment cephalograms were randomly selected for this study. First, human examiners (one beginner and two regular examiners) manually detected 15 cephalometric landmarks and measured the required time. Subsequently, commercial AI services automatically identified these landmarks. Finally, the human examiners reviewed the AI landmark determination and adjusted them as needed while measuring the time required for the review process. Then, the elapsed time was compared statistically. Systematic and random errors among examiners (human examiners, AI and their combinations) were assessed using the Bland-Altman analysis. Intraclass correlation coefficients were used to estimate the inter-examiner reliability. No clinically significant time difference was observed regardless of AI use. AI measurement error decreased substantially after the review of the human examiner. From the standpoint of the human examiner, beginners could obtain better results than manual landmarking. However, the AI review outcomes of the regular examiner were not as good as those of manual analysis, possibly due to AI-dependent landmark decisions. The reliability of AI analysis could also be improved by employing the human examiner's review. Although the time-saving effect was not evident, commercial AI cephalometric services are currently recommendable for beginners.
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Affiliation(s)
- Jaesik Lee
- Department of Pediatric Dentistry, School of Dentistry, Kyungpook National University, 41940 Daegu, Republic of Korea
| | - Seong-Ryeol Bae
- Department of Orthodontics, School of Dentistry, Kyungpook National University, 41940 Daegu, Republic of Korea
| | - Hyung-Kyu Noh
- Department of Orthodontics, School of Dentistry, Kyungpook National University, 41940 Daegu, Republic of Korea
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Metkari V, Shah R, Salunkhe N. Development and validation of UV spectrophotometric method for estimation of naringenin in phytosomal formulation: interlaboratory comparison, capability, and statistical analysis. ANAL SCI 2023; 39:1917-1928. [PMID: 37572264 DOI: 10.1007/s44211-023-00401-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 07/28/2023] [Indexed: 08/14/2023]
Abstract
The goal of the current work was to establish a simple, reproducible, and reliable UV spectrophotometric method for determining naringenin in phytosomal formulations. The solvent methanol was optimized and spectrophotometric analysis was carried out at 289 nm. The proposed method was also validated for linearity, specificity, accuracy, precision, ruggedness, and robustness in accordance with the International Council for Harmonisation (ICH). With a correlation coefficient of 0.9982, the concentration of naringenin in the range of 2-14 μg/ml follows Lambert-Beer rule. The accuracy ranged between 99.33 and 99.75%. The predicted percent recovery was found to be 99.48 ± 0.41. It was found that the limits of detection (LOD) and quantification were 0.54 μg/ml and 1.66 μg/ml, respectively. The normality of the data is accepted by the Shapiro-Wilk test (P = 0.9065) and Shapiro-Francia test (W = 0.9866). On the Bland-Altman plot, an acceptable repeatability coefficient was found. The remarkable inter-laboratory repeatability was proved by the Youden plot, which was also utilized to spot random and total errors. Levey-Jennings charts and other control diagrams have demonstrated that the method is statistically controlled. Greater values of Cp (1.03) and Cpk (0.83) were seen in the capability analysis, indicating that the method could analyze the samples reliably and consistently with minimum variation. The validation report demonstrated that the proposed method was appropriate for naringenin detection and analysis in phytosomal formulations, indicating that it can be employed for routine laboratory analysis as well.
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Affiliation(s)
- Vijay Metkari
- Department of Pharmaceutics, Adarsh College of Pharmacy, Vita, Vita, Maharashtra, India.
| | - Rohit Shah
- Department of Pharmaceutics, Appasaheb Birnale College of Pharmacy, Sangli, Sangli, Maharashtra, India
| | - Nitin Salunkhe
- Department of Pharmaceutics, Adarsh College of Pharmacy, Vita, Vita, Maharashtra, India
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Nuytens P, Vandeweghe S, D'haese R. Accuracy of a chairside reverse scanbody workflow for a complete arch implant-supported prosthesis using four intraoral scanners versus a desktop scanner. J Dent 2023; 138:104717. [PMID: 37739058 DOI: 10.1016/j.jdent.2023.104717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 09/09/2023] [Accepted: 09/19/2023] [Indexed: 09/24/2023] Open
Abstract
OBJECTIVES The aim of this study was to evaluate the accuracy of a chairside reverse scanbody workflow for a complete arch implant-supported prosthesis using four intraoral scanners (IOSs) and a desktop scanner. MATERIAL AND METHODS A complete arch implant-supported interim prosthesis was designed and milled in polymethylmethacrylate. Six reverse scanbodies (ScAnalog) were connected to the implant-prosthetic connections and twenty scans were made extraorally using four IOS devices (TRIOS 3, TRIOS 5, Primescan v.5.2, Medit i700W) and one desktop scanner (E4 RED). A coordinate machine (ATOS Q GOM) was used to assess the milling distortion. The scanbody positions were compared to the reference CAD design using metrology software. Linear and angular measurements per implant-prosthetic connection were considered for trueness and precision. Data were analyzed using one-way ANOVA and Bonferroni test. RESULTS Trueness values were 118.14 ± 25.49 µm for TRIOS 3, 84.62 µm ±19.10 for TRIOS 5, 106.39 ± 27.58 µm for Primescan v.5.2, 120.25 ± 27.44 µm for Medit i700W and 65.36 ± 4.66 µm for E4 RED. Significant differences in mean trueness values were found among IOS and E4 RED. Precision values were 108 ± 55 µm for TRIOS 3, 86 ± 55 µm for TRIOS 5, 104 ± 55 µm for Primescan v.5.2, 90 ± 54 µm for Medit i700W and 18 ± 11 µm for E4 RED. Significant differences in precision were found between IOS and E4 RED. CONCLUSIONS A chairside reverse scanbody workflow with IOS remains less accurate compared to similar workflow with a desktop scanner. CLINICAL SIGNIFICANCE A chairside reverse scanbody workflow is a valuable alternative but the IOS device should be selected with caution because in the present study, only TRIOS5 was capable to achieve an accuracy below the clinical acceptable thresholds. The use of a desktop scanner remains the best choice for this clinical workflow. Additionally, the milling distortion of the interim prosthesis plays a major role in this reverse scanbody workflow and should be kept as low as possible.
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Affiliation(s)
- Philippe Nuytens
- Department of Reconstructive Dentistry, Faculty of Medicine and Health Sciences, Ghent University, C. Heymanslaan 10, Ghent 9000, Belgium.
| | - Stefan Vandeweghe
- Department of Reconstructive Dentistry, Faculty of Medicine and Health Sciences, Ghent University, C. Heymanslaan 10, Ghent 9000, Belgium
| | - Rani D'haese
- Department of Reconstructive Dentistry, Faculty of Medicine and Health Sciences, Ghent University, C. Heymanslaan 10, Ghent 9000, Belgium
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