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Parize H, Sadilina S, Caldas RA, Cordeiro JVC, Kleinheinz J, Laganá DC, Sesma N, Bohner L. Magnetic resonance imaging for jawbone assessment: a systematic review. Head Face Med 2024; 20:25. [PMID: 38641613 PMCID: PMC11027384 DOI: 10.1186/s13005-024-00424-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Accepted: 03/18/2024] [Indexed: 04/21/2024] Open
Abstract
PURPOSE To evaluate the accuracy of magnetic resonance imaging (MRI) for jawbone assessment compared to reference-standard measurements in the literature. MATERIALS AND METHODS An electronic database search was conducted in PubMed, EMBASE, Scopus, Web of Science, and the Cochrane Library in June 2022, and updated in August 2023. Studies evaluating the accuracy of MRI for jawbone assessment compared with reference-standard measurements (histology, physical measurements, or computed tomography) were included. The outcome measures included bone histomorphometry and linear measurements. The risk of bias was assessed by the Quality Assessment Tool for Diagnostic Accuracy Studies (QUADAS-2). The review was registered in the PROSPERO database (CRD42022342697). RESULTS From 63 studies selected for full-text analysis, nine manuscripts were considered eligible for this review. The studies included assessments of 54 participants, 35 cadavers, and one phantom. A linear measurement error ranging from 0.03 to 3.11 mm was shown. The accuracy of bone histomorphometry varies among studies. Limitations of the evidence included heterogeneity of MRI protocols and the methodology of the included studies. CONCLUSION Few studies have suggested the feasibility of MRI for jawbone assessment, as MRI provides comparable results to those of standard reference tests. However, further advancements and optimizations are needed to increase the applicability, validate the efficacy, and establish clinical utility of these methods.
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Affiliation(s)
- Hian Parize
- Department of Cranio-Maxillofacial Surgery, University Hospital Munster, Munster, Germany
- Department of Prosthodontics, University of São Paulo, São Paulo, Brazil
| | - Sofya Sadilina
- Department of Cranio-Maxillofacial Surgery, University Hospital Munster, Munster, Germany
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Ricardo Armini Caldas
- Department of Dentistry, Federal University of Santa Catarina, R. Delfino Conti, 1240 - Trindade, Florianopolis, Florianópolis, 88040-535, SC, Brazil.
| | - João Victor Cunha Cordeiro
- Department of Dentistry, Federal University of Santa Catarina, R. Delfino Conti, 1240 - Trindade, Florianopolis, Florianópolis, 88040-535, SC, Brazil
| | - Johannes Kleinheinz
- Department of Cranio-Maxillofacial Surgery, University Hospital Munster, Munster, Germany
| | - Dalva Cruz Laganá
- Department of Prosthodontics, University of São Paulo, São Paulo, Brazil
| | - Newton Sesma
- Department of Prosthodontics, University of São Paulo, São Paulo, Brazil
| | - Lauren Bohner
- Department of Cranio-Maxillofacial Surgery, University Hospital Munster, Munster, Germany
- Department of Dentistry, Federal University of Santa Catarina, R. Delfino Conti, 1240 - Trindade, Florianopolis, Florianópolis, 88040-535, SC, Brazil
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Yen YF, Takahashi AM, Ackerman JL. X-nuclear MRS and MRI on a standard clinical proton-only MRI scanner. JOURNAL OF MAGNETIC RESONANCE OPEN 2023; 16-17:100118. [PMID: 38046796 PMCID: PMC10691785 DOI: 10.1016/j.jmro.2023.100118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
In light of the growing interest in-vivo deuterium metabolic imaging, hyperpolarized 13C, 15N, 3He, and 129Xe imaging, as well as 31P spectroscopy and imaging in large animals on clinical MR scanners, we demonstrate the use of a (radio)frequency converter system to allow X-nuclear MR spectroscopy (MRS) and MR imaging (MRI) on standard clinical MRI scanners without multinuclear capability. This is not only an economical alternative to the multinuclear system (MNS) provided by the scanner vendors, but also overcomes the frequency bandwidth problem of some vendor-provided MNSs that prohibit users from applications with X-nuclei of low magnetogyric ratio, such as deuterium (6.536 MHz/Tesla) and 15N (-4.316 MHz/Tesla). Here we illustrate the design of the frequency converter system and demonstrate its feasibility for 31P (17.235 MHz/Tesla), 13C (10.708 MHz/Tesla), and 15N MRS and MRI on a clinical MRI scanner without vendor-provided multinuclear hardware.
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Affiliation(s)
- Yi-Fen Yen
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
| | - Atsushi M. Takahashi
- Department of Brain and Cognitive Sciences, McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, MA, United States
| | - Jerome L. Ackerman
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
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Choi IGG, Pinhata-Baptista OH, Ferraço R, Kim JH, Abdala Júnior R, Arita ES, Cortes ARG, Ackerman JL. Correlation among alveolar bone assessments provided by CBCT, micro-CT, and 14 T MRI. Dentomaxillofac Radiol 2022; 51:20210243. [PMID: 35348359 PMCID: PMC10043613 DOI: 10.1259/dmfr.20210243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Objectives: The aim of this study was to evaluate bone mineral adipose tissue (BMAT) volume in 21 alveolar bone specimens, as determined by 14 T magnetic resonance imaging (MRI), and correlate them to the radiodensity values obtained preoperatively of regions of interest by cone beam computed tomography (CBCT), and to the BV/TV ratio values obtained by micro-CT, the gold-standard for morphometric data collection. Methods: Partially edentulous patients were submitted to a CBCT scan, and the radiographic bone densities in each ROI were automatically calculated using coDiagnostiX software. Based on the CBCT surgical planning, a CAD/CAM stereolithographic surgical guide was fabricated to retrieve a bone biopsy from the same ROIs scanned preoperatively, and then to orientate the subsequent implant placement. The alveolar bone biopsies were then collected and scanned using the micro-CT and 14 T MRI techniques. Pearson’s correlation test was performed to correlate the results obtained using the three different techniques. Results: In the 21 eligible bone specimens (6 females, 15 males), age (mean age 52.9 years), micro-CT, and 14 T MRI variables were found to be normally distributed (p > 0.05). The strongest—and only statistically significant (p < 0.05)—correlation was found between micro-CT and 14 T MRI values (r = 0.943), and the weakest, between 14 T MRI and CBCT values (r = –0.068). Conclusions: The findings suggest that 14 T MRI can be used to evaluate BMAT as an indirect marker for bone volume, and that CBCT is not a reliable technique to provide accurate bone density values.
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Affiliation(s)
| | | | - Renato Ferraço
- Department of Oral and Maxillofacial Radiology, School of Dentistry, Seoul National University, Seoul, Republic of Korea
| | - Jun Ho Kim
- Military Hospital of the São Paulo Area (HMASP), São Paulo, Brazil
| | - Reinaldo Abdala Júnior
- Department of Oral and Maxillofacial Radiology, School of Dentistry, Seoul National University, Seoul, Republic of Korea
| | - Emiko Saito Arita
- Department of Oral Radiology, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | | | - Jerome L. Ackerman
- Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, MA, USA
- Department of Dental Surgery, University of Malta, Msida, Republic of Malta
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Nishimura DA, Choi IGG, Arita ES, Cortes ARG. Estimating bone mineral density using MRI in medicine and dentistry: a literature review. Oral Radiol 2020; 37:366-375. [PMID: 32930913 DOI: 10.1007/s11282-020-00484-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 09/02/2020] [Indexed: 11/29/2022]
Abstract
OBJECTIVES Studies performed in the medical area have shown that an indirect diagnosis of bone mineral density (BMD) is feasible by assessing the amount of bone marrow fat with non-ionizing magnetic resonance imaging (MRI). In dentistry, radiographic methods are still the most used for alveolar bone diagnosis. The present literature review aimed at addressing the role of MRI in assessing BMD in medicine and dentistry. METHODS MEDLINE and EMBASE databases were searched for articles published up to 2019. RESULTS A total of 428 potentially eligible papers were screened. Of these, 397 were excluded after title, abstract and keyword assessment, yielding 31 papers that potentially met the inclusion criteria. Eleven studies were then excluded because their full texts did not discuss the role of MRI in the indirect diagnosis of BMD. As a result, a total of 20 studies were finally identified as eligible for inclusion in this literature review. Most studies found satisfactory accuracy of MRI for indirectly assessing BMD by quantifying bone mineral fat (BMF). However, only one of these studies was on dentistry. CONCLUSION Within the limitations of this study, the present findings suggest that MRI is accurate to indirectly estimate bone density by assessing BMF, and could be clinically relevant during dental treatment planning.
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Affiliation(s)
- Danielle Ayumi Nishimura
- Department of Stomatology, School of Dentistry, University of São Paulo (USP), Av. Prof. Lineu Prestes, 2227, São Paulo, 05508-000, Brazil.
| | - Isabela Goulart Gil Choi
- Department of Stomatology, School of Dentistry, University of São Paulo (USP), Av. Prof. Lineu Prestes, 2227, São Paulo, 05508-000, Brazil
| | - Emiko Saita Arita
- Department of Stomatology, School of Dentistry, University of São Paulo (USP), Av. Prof. Lineu Prestes, 2227, São Paulo, 05508-000, Brazil
| | - Arthur Rodriguez Gonzalez Cortes
- Department of Stomatology, School of Dentistry, University of São Paulo (USP), Av. Prof. Lineu Prestes, 2227, São Paulo, 05508-000, Brazil
- Department of Dental Surgery, Faculty of Dental Surgery, University of Malta, Msida, Malta
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Laurino FAR, Choi IGG, Kim JH, Gialain IO, Ferraço R, Haetinger RG, Pinhata-Baptista OH, Abdala-Junior R, Costa C, Cortes ARG. Correlation between magnetic resonance imaging and cone-beam computed tomography for maxillary sinus graft assessment. Imaging Sci Dent 2020; 50:93-98. [PMID: 32601583 PMCID: PMC7314607 DOI: 10.5624/isd.2020.50.2.93] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 01/22/2020] [Accepted: 02/13/2020] [Indexed: 11/18/2022] Open
Abstract
Purpose Little is known regarding the accuracy of clinical magnetic resonance imaging (MRI) protocols with acceptable scan times in sinus graft assessment. The aim of this study was to evaluate the correlations between MRI and cone-beam computed tomographic (CBCT) measurements of maxillary sinus grafts using 2 different clinical MRI imaging protocols. Materials and Methods A total of 15 patients who underwent unilateral sinus lift surgery with biphasic calcium phosphate were included in this study. CBCT, T1-weighted MRI, and T2-weighted MRI scans were taken 6 months after sinus lift surgery. Linear measurements of the maximum height and buccolingual width in coronal images, as well as the maximum anteroposterior depth in sagittal images, were performed by 2 trained observers using CBCT and MRI Digital Imaging and Communication in Medicine files. Microcomputed tomography (micro-CT) was also performed to confirm the presence of bone tissue in the grafted area. Correlations between MRI and CBCT measurements were assessed with the Pearson test. Results Significant correlations between CBCT and MRI were found for sinus graft height (T1-weighted, r=0.711 and P<0.05; T2-weighted, r=0.713 and P<0.05), buccolingual width (T1-weighted, r=0.892 and P<0.05; T2-weighted, r=0.956 and P<0.05), and anteroposterior depth (T1-weighted, r=0.731 and P<0.05; T2-weighted, r=0.873 and P<0.05). The presence of bone tissue in the grafted areas was confirmed via micro-CT. Conclusion Both MRI pulse sequences tested can be used for sinus graft measurements, as strong correlations with CBCT were found. However, correlations between T2-weighted MRI and CBCT were slightly higher than those between T1-weighted MRI and CBCT.
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Affiliation(s)
| | | | - Jun Ho Kim
- Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | - Ivan Onone Gialain
- Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, Brazil.,Stricto Sensu Research Program on Integrated Dental Sciences, Universidade de Cuiabá, Cuiabá, Brazil
| | - Renato Ferraço
- Department of Implantology, Military Hospital of São Paulo Area, São Paulo, Brazil
| | | | | | - Reinaldo Abdala-Junior
- Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, Brazil.,Department of Radiology, Centro Universitário Sudoeste Paulista, Avaré, São Paulo, Brazil
| | - Claudio Costa
- Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | - Arthur Rodriguez Gonzalez Cortes
- Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, Brazil.,Department of Dental Surgery, Faculty of Dental Surgery, University of Malta, Msida, Malta
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Sadie-Van Gijsen H. The Regulation of Marrow Fat by Vitamin D: Molecular Mechanisms and Clinical Implications. Curr Osteoporos Rep 2019; 17:405-415. [PMID: 31749086 DOI: 10.1007/s11914-019-00546-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
PURPOSE OF REVIEW To review the available literature regarding a possible relationship between vitamin D and bone marrow adipose tissue (BMAT), and to identify future avenues of research that warrant attention. RECENT FINDINGS Results from in vivo animal and human studies all support the hypothesis that vitamin D can suppress BMAT expansion. This is achieved by antagonizing adipogenesis in bone marrow stromal cells, through inhibition of PPARγ2 activity and stimulation of pro-osteogenic Wnt signalling. However, our understanding of the functions of BMAT is still evolving, and studies on the role of vitamin D in modulating BMAT function are lacking. In addition, many diseases and chronic conditions are associated with low vitamin D status and low bone mineral density (BMD), but BMAT expansion has not been studied in these patient populations. Vitamin D suppresses BMAT expansion, but its role in modulating BMAT function is poorly understood.
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Affiliation(s)
- Hanel Sadie-Van Gijsen
- Division of Medical Physiology, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University Tygerberg Campus, Francie van Zijl Drive, PO Box 241, Parow, Cape Town, 8000, South Africa.
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Ex vivo mouse brain microscopy at 15T with loop-gap RF coil. Magn Reson Imaging 2018; 51:1-6. [PMID: 29679634 DOI: 10.1016/j.mri.2018.04.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 04/17/2018] [Accepted: 04/17/2018] [Indexed: 11/23/2022]
Abstract
The design of a loop-gap-resonator RF coil optimized for ex vivo mouse brain microscopy at ultra high fields is described and its properties characterized using simulations, phantoms and experimental scans of mouse brains fixed in 10% formalin containing 4 mM Magnevist™. The RF (B1) and magnetic field (B0) homogeneities are experimentally quantified and compared to electromagnetic simulations of the coil. The coil's performance is also compared to a similarly sized surface coil and found to yield double the sensitivity. A three-dimensional gradient-echo (GRE) sequence is used to acquire high resolution mouse brain scans at (47 μm)3 resolution in 1.8 h and a 20 × 20 × 19 μm3 resolution in 27 h. The high resolution obtained permitted clear visualization and identification of multiple structures in the ex vivo mouse brain and represents, to our knowledge, the highest resolution ever achieved for a whole mouse brain. Importantly, the coil design is simple and easy to construct.
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