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Atila O, Deniz E, Ari A, Sengur A, Chakraborty S, Barua PD, Acharya UR. LSGP-USFNet: Automated Attention Deficit Hyperactivity Disorder Detection Using Locations of Sophie Germain's Primes on Ulam's Spiral-Based Features with Electroencephalogram Signals. Sensors (Basel) 2023; 23:7032. [PMID: 37631569 PMCID: PMC10459515 DOI: 10.3390/s23167032] [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: 06/20/2023] [Revised: 07/27/2023] [Accepted: 08/05/2023] [Indexed: 08/27/2023]
Abstract
Anxiety, learning disabilities, and depression are the symptoms of attention deficit hyperactivity disorder (ADHD), an isogenous pattern of hyperactivity, impulsivity, and inattention. For the early diagnosis of ADHD, electroencephalogram (EEG) signals are widely used. However, the direct analysis of an EEG is highly challenging as it is time-consuming, nonlinear, and nonstationary in nature. Thus, in this paper, a novel approach (LSGP-USFNet) is developed based on the patterns obtained from Ulam's spiral and Sophia Germain's prime numbers. The EEG signals are initially filtered to remove the noise and segmented with a non-overlapping sliding window of a length of 512 samples. Then, a time-frequency analysis approach, namely continuous wavelet transform, is applied to each channel of the segmented EEG signal to interpret it in the time and frequency domain. The obtained time-frequency representation is saved as a time-frequency image, and a non-overlapping n × n sliding window is applied to this image for patch extraction. An n × n Ulam's spiral is localized on each patch, and the gray levels are acquired from this patch as features where Sophie Germain's primes are located in Ulam's spiral. All gray tones from all patches are concatenated to construct the features for ADHD and normal classes. A gray tone selection algorithm, namely ReliefF, is employed on the representative features to acquire the final most important gray tones. The support vector machine classifier is used with a 10-fold cross-validation criteria. Our proposed approach, LSGP-USFNet, was developed using a publicly available dataset and obtained an accuracy of 97.46% in detecting ADHD automatically. Our generated model is ready to be validated using a bigger database and it can also be used to detect other children's neurological disorders.
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Affiliation(s)
- Orhan Atila
- Electrical-Electronics Engineering Department, Technology Faculty, Firat University, 23119 Elazig, Turkey; (O.A.); (E.D.); (A.S.)
| | - Erkan Deniz
- Electrical-Electronics Engineering Department, Technology Faculty, Firat University, 23119 Elazig, Turkey; (O.A.); (E.D.); (A.S.)
| | - Ali Ari
- Computer Engineering Department, Engineering Faculty, Inonu University, 44280 Malatya, Turkey;
| | - Abdulkadir Sengur
- Electrical-Electronics Engineering Department, Technology Faculty, Firat University, 23119 Elazig, Turkey; (O.A.); (E.D.); (A.S.)
| | - Subrata Chakraborty
- Faculty of Science, Agriculture, Business and Law, University of New England, Armidale, NSW 2351, Australia
- Faculty of Engineering and Information Technology, University of Technology Sydney, Ultimo, NSW 2007, Australia
| | - Prabal Datta Barua
- Faculty of Science, Agriculture, Business and Law, University of New England, Armidale, NSW 2351, Australia
- Faculty of Engineering and Information Technology, University of Technology Sydney, Ultimo, NSW 2007, Australia
- School of Information Systems, University of Southern Queensland, Springfield, QLD 4300, Australia
| | - U. Rajendra Acharya
- School of Mathematics, Physics and Computing, University of Southern Queensland, Springfield, QLD 4300, Australia;
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Deniz E, Pasha M, Guerra ME, Viviano S, Ji W, Konstantino M, Jeffries L, Lakhani SA, Medne L, Skraban C, Krantz I, Khokha MK. CFAP45, a heterotaxy and congenital heart disease gene, affects cilia stability. Dev Biol 2023; 499:75-88. [PMID: 37172641 PMCID: PMC10373286 DOI: 10.1016/j.ydbio.2023.04.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 01/17/2023] [Revised: 04/07/2023] [Accepted: 04/23/2023] [Indexed: 05/15/2023]
Abstract
Congenital heart disease (CHD) is the most common and lethal birth defect, affecting 1.3 million individuals worldwide. During early embryogenesis, errors in Left-Right (LR) patterning called Heterotaxy (Htx) can lead to severe CHD. Many of the genetic underpinnings of Htx/CHD remain unknown. In analyzing a family with Htx/CHD using whole-exome sequencing, we identified a homozygous recessive missense mutation in CFAP45 in two affected siblings. CFAP45 belongs to the coiled-coil domain-containing protein family, and its role in development is emerging. When we depleted Cfap45 in frog embryos, we detected abnormalities in cardiac looping and global markers of LR patterning, recapitulating the patient's heterotaxy phenotype. In vertebrates, laterality is broken at the Left-Right Organizer (LRO) by motile monocilia that generate leftward fluid flow. When we analyzed the LRO in embryos depleted of Cfap45, we discovered "bulges" within the cilia of these monociliated cells. In addition, epidermal multiciliated cells lost cilia with Cfap45 depletion. Via live confocal imaging, we found that Cfap45 localizes in a punctate but static position within the ciliary axoneme, and depletion leads to loss of cilia stability and eventual detachment from the cell's apical surface. This work demonstrates that in Xenopus, Cfap45 is required to sustain cilia stability in multiciliated and monociliated cells, providing a plausible mechanism for its role in heterotaxy and congenital heart disease.
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Affiliation(s)
- E Deniz
- Pediatric Genomics Discovery Program, Department of Pediatrics, Yale University School of Medicine, 333 Cedar Street, New Haven, CT, 06510, USA.
| | - M Pasha
- Pediatric Genomics Discovery Program, Department of Pediatrics, Yale University School of Medicine, 333 Cedar Street, New Haven, CT, 06510, USA
| | - M E Guerra
- Pediatric Genomics Discovery Program, Department of Pediatrics, Yale University School of Medicine, 333 Cedar Street, New Haven, CT, 06510, USA
| | - S Viviano
- Pediatric Genomics Discovery Program, Department of Pediatrics, Yale University School of Medicine, 333 Cedar Street, New Haven, CT, 06510, USA
| | - W Ji
- Pediatric Genomics Discovery Program, Department of Pediatrics, Yale University School of Medicine, 333 Cedar Street, New Haven, CT, 06510, USA
| | - M Konstantino
- Pediatric Genomics Discovery Program, Department of Pediatrics, Yale University School of Medicine, 333 Cedar Street, New Haven, CT, 06510, USA
| | - L Jeffries
- Pediatric Genomics Discovery Program, Department of Pediatrics, Yale University School of Medicine, 333 Cedar Street, New Haven, CT, 06510, USA
| | - S A Lakhani
- Pediatric Genomics Discovery Program, Department of Pediatrics, Yale University School of Medicine, 333 Cedar Street, New Haven, CT, 06510, USA
| | - L Medne
- Department of Pediatrics, Division of Human Genetics, Children's Hospital of Philadelphia, USA
| | - C Skraban
- Department of Pediatrics, Division of Human Genetics, Children's Hospital of Philadelphia, USA
| | - I Krantz
- Department of Pediatrics, Division of Human Genetics, Children's Hospital of Philadelphia, USA
| | - M K Khokha
- Pediatric Genomics Discovery Program, Department of Pediatrics, Yale University School of Medicine, 333 Cedar Street, New Haven, CT, 06510, USA; Department of Genetics, Yale University School of Medicine, 333 Cedar Street, New Haven, CT, 06510, USA.
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Şibar S, Erdal AI, Deniz E, Kılıç Ö, Tuncer S. Comparison of the effectiveness and safety of the "endoscope-assisted polypropylene mesh lift" and "gliding brow lift" techniques for the treatment of lateral brow ptosis. J Plast Reconstr Aesthet Surg 2023; 83:455-462. [PMID: 37315493 DOI: 10.1016/j.bjps.2023.04.079] [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: 10/25/2022] [Revised: 04/14/2023] [Accepted: 04/26/2023] [Indexed: 06/16/2023]
Abstract
BACKGROUND There are many techniques used to treat lateral brow ptosis. This study compared two techniques that are used for lateral brow rejuvenation in terms of effectiveness and safety-namely, endoscope-assisted polypropylene mesh lift (EAML) and gliding brow lift (GBL). METHOD Eighty-six patients who underwent brow lift surgery between March 2018 and June 2020 were included in this retrospective study. Forty-four patients were operated on using the EAML technique, whereas 42 patients were operated on using the GBL technique. The measurement of defined distances in photographs was carried out using a software, and the Brow Positioning Grading Scale (BPGS) and Global Aesthetic Improvement Scale (GAIS) were applied in the pre and postoperative periods. RESULTS The measurement results obtained in the postoperative period were better than those obtained in the preoperative period for both the techniques, whereas the results obtained at postoperative month 3 were found to be better than those obtained at month 12 (p < 0.05). The results were similar between the measurements at postoperative months 3 and 12 for both the techniques. The loss of brow height from postoperative months 3-12 was greater in the GBL group (p < 0.05). The postoperative scores on the BPGS were found to be better in both techniques than the preoperative scores (p < 0.05). The GAIS score at postoperative month 12 was found to be better in the EAML group. The two groups had similar rates of complications. CONCLUSION The two techniques were found to have similar effectiveness and safety profiles for brow rejuvenation. LEVEL OF EVIDENCE: 4
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Affiliation(s)
- Serhat Şibar
- Department of Plastic, Reconstructive & Aesthetic Surgery, Gazi University, Ankara, Turkey.
| | - Ayhan Işık Erdal
- Department of Plastic, Reconstructive & Aesthetic Surgery, Gazi University, Ankara, Turkey
| | - Erkan Deniz
- Department of Plastic, Reconstructive & Aesthetic Surgery, Dr. Burhan Nalbantoğlu State Hospital, Nicosia, Cyprus
| | - Özgün Kılıç
- Department of Plastic, Reconstructive & Aesthetic Surgery, Gazi University, Ankara, Turkey
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Ozcelik STA, Uyanık H, Deniz E, Sengur A. Automated Hypertension Detection Using ConvMixer and Spectrogram Techniques with Ballistocardiograph Signals. Diagnostics (Basel) 2023; 13:diagnostics13020182. [PMID: 36672992 PMCID: PMC9858153 DOI: 10.3390/diagnostics13020182] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/01/2023] [Accepted: 01/03/2023] [Indexed: 01/06/2023] Open
Abstract
Blood pressure is the pressure exerted by the blood in the veins against the walls of the veins. If this value is above normal levels, it is known as high blood pressure (HBP) or hypertension (HPT). This health problem which often referred to as the "silent killer" reduces the quality of life and causes severe damage to many body parts in various ways. Besides, its mortality rate is very high. Hence, rapid and effective diagnosis of this health problem is crucial. In this study, an automatic diagnosis of HPT has been proposed using ballistocardiography (BCG) signals. The BCG signals were transformed to the time-frequency domain using the spectrogram method. While creating the spectrogram images, parameters such as window type, window length, overlapping rate, and fast Fourier transform size were adjusted. Then, these images were classified using ConvMixer architecture, similar to vision transformers (ViT) and multi-layer perceptron (MLP)-mixer structures, which have attracted a lot of attention. Its performance was compared with classical architectures such as ResNet18 and ResNet50. The results obtained showed that the ConvMixer structure gave very successful results and a very short operation time. Our proposed model has obtained an accuracy of 98.14%, 98.79%, and 97.69% for the ResNet18, ResNet50, and ConvMixer architectures, respectively. In addition, it has been observed that the processing time of the ConvMixer architecture is relatively short compared to these two architectures.
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Affiliation(s)
- Salih T. A. Ozcelik
- Electrical-Electronics Engineering Department, Engineering Faculty, Bingol University, Bingol 12000, Turkey
| | - Hakan Uyanık
- Electrical-Electronics Engineering Department, Engineering Faculty, Munzur University, Tunceli 62000, Turkey
| | - Erkan Deniz
- Electrical-Electronics Engineering Department, Technology Faculty, Firat University, Elazig 23119, Turkey
| | - Abdulkadir Sengur
- Electrical-Electronics Engineering Department, Technology Faculty, Firat University, Elazig 23119, Turkey
- Correspondence:
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Deniz E, Sobahi N, Omar N, Sengur A, Acharya UR. Automated robust human emotion classification system using hybrid EEG features with ICBrainDB dataset. Health Inf Sci Syst 2022; 10:31. [PMID: 36387749 PMCID: PMC9649575 DOI: 10.1007/s13755-022-00201-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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 10/23/2022] [Indexed: 11/11/2022] Open
Abstract
Emotion identification is an essential task for human-computer interaction systems. Electroencephalogram (EEG) signals have been widely used in emotion recognition. So far, there have been several EEG-based emotion recognition datasets that the researchers have used to validate their developed models. Hence, we have used a new ICBrainDB EEG dataset to classify angry, neutral, happy, and sad emotions in this work. Signal processing-based wavelet transform (WT), tunable Q-factor wavelet transform (TQWT), and image processing-based histogram of oriented gradients (HOG), local binary pattern (LBP), and convolutional neural network (CNN) features have been used extracted from the EEG signals. The WT is used to extract the rhythms from each channel of the EEG signal. The instantaneous frequency and spectral entropy are computed from each EEG rhythm signal. The average, and standard deviation of instantaneous frequency, and spectral entropy of each rhythm of the signal are the final feature vectors. The spectral entropy in each channel of the EEG signal after performing the TQWT is used to create the feature vectors in the second signal side method. Each EEG channel is transformed into time-frequency plots using the synchrosqueezed wavelet transform. Then, the feature vectors are constructed individually using windowed HOG and LBP features. Also, each channel of the EEG data is fed to a pretrained CNN to extract the features. In the feature selection process, the ReliefF feature selector is employed. Various feature classification algorithms namely, k-nearest neighbor (KNN), support vector machines, and neural networks are used for the automated classification of angry, neutral, happy, and sad emotions. Our developed model obtained an average accuracy of 90.7% using HOG features and a KNN classifier with a tenfold cross-validation strategy.
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Affiliation(s)
- Erkan Deniz
- Electrical and Electronics Engineering Department, Technology Faculty, Firat University, Elazig, Turkey
| | - Nebras Sobahi
- Department of Electrical and Computer Engineering, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Naaman Omar
- Department of Information Technology Management, Administration Technical College, Duhok Polytechnic University, Duhok, Iraq
| | - Abdulkadir Sengur
- Electrical and Electronics Engineering Department, Technology Faculty, Firat University, Elazig, Turkey
| | - U. Rajendra Acharya
- Department of Electronics and Computer Engineering, Ngee Ann Polytechnic, Singapore, 599489 Singapore
- Biomedical Engineering, School of Science and Technology, SUSS University, Singapore, Singapore
- Biomedical Informatics and Medical Engineering, Asia University, Taichung, Taiwan
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Sobahi N, Atila O, Deniz E, Sengur A, Acharya UR. Explainable COVID-19 detection using fractal dimension and vision transformer with Grad-CAM on cough sounds. Biocybern Biomed Eng 2022; 42:1066-1080. [PMID: 36092540 PMCID: PMC9444505 DOI: 10.1016/j.bbe.2022.08.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 05/23/2022] [Revised: 08/28/2022] [Accepted: 08/29/2022] [Indexed: 11/27/2022]
Abstract
The polymerase chain reaction (PCR) test is not only time-intensive but also a contact method that puts healthcare personnel at risk. Thus, contactless and fast detection tests are more valuable. Cough sound is an important indicator of COVID-19, and in this paper, a novel explainable scheme is developed for cough sound-based COVID-19 detection. In the presented work, the cough sound is initially segmented into overlapping parts, and each segment is labeled as the input audio, which may contain other sounds. The deep Yet Another Mobile Network (YAMNet) model is considered in this work. After labeling, the segments labeled as cough are cropped and concatenated to reconstruct the pure cough sounds. Then, four fractal dimensions (FD) calculation methods are employed to acquire the FD coefficients on the cough sound with an overlapped sliding window that forms a matrix. The constructed matrixes are then used to form the fractal dimension images. Finally, a pretrained vision transformer (ViT) model is used to classify the constructed images into COVID-19, healthy and symptomatic classes. In this work, we demonstrate the performance of the ViT on cough sound-based COVID-19, and a visual explainability of the inner workings of the ViT model is shown. Three publically available cough sound datasets, namely COUGHVID, VIRUFY, and COSWARA, are used in this study. We have obtained 98.45%, 98.15%, and 97.59% accuracy for COUGHVID, VIRUFY, and COSWARA datasets, respectively. Our developed model obtained the highest performance compared to the state-of-the-art methods and is ready to be tested in real-world applications.
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Affiliation(s)
- Nebras Sobahi
- King Abdulaziz University, Department of Electrical and Computer Engineering, Jeddah, Saudi Arabia
| | - Orhan Atila
- Firat University, Technology Faculty, Electrical and Electronics Engineering Department, Elazig, Turkey
| | - Erkan Deniz
- Firat University, Technology Faculty, Electrical and Electronics Engineering Department, Elazig, Turkey
| | - Abdulkadir Sengur
- Firat University, Technology Faculty, Electrical and Electronics Engineering Department, Elazig, Turkey
| | - U Rajendra Acharya
- Ngee Ann Polytechnic, Department of Electronics and Computer Engineering, 599489, Singapore.,Biomedical Engineering, School of Science and Technology, SUSS University, Singapore.,Biomedical Informatics and Medical Engineering, Asia University, Taichung, Taiwan
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Deniz E, Löffler JG, Kondratiev A, Thun AR, Shen Y, Wille G, Bredenbeck J. High-precision background correction and artifact suppression for ultrafast spectroscopy by quasi-simultaneous measurements in a split-sample cell. Rev Sci Instrum 2022; 93:033001. [PMID: 35364971 DOI: 10.1063/5.0079958] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 02/03/2022] [Indexed: 06/14/2023]
Abstract
Alternating acquisition of background and sample spectra is often employed in conventional Fourier-transform infrared spectroscopy or ultraviolet-visible spectroscopy for accurate background subtraction. For example, for solvent background correction, typically a spectrum of a cuvette with solvent is measured and subtracted from a spectrum of a cuvette with solvent and solute. Ultrafast spectroscopies, though, come with many peculiarities that make the collection of well-matched, subtractable background and sample spectra challenging. Here, we present a demountable split-sample cell in combination with a modified Lissajous scanner to overcome these challenges. It allows for quasi-simultaneous measurements of background and sample spectra, mitigating the effects of drifts of the setup and maintaining the beam and sample geometry when swapping between background and sample measurements. The cell is moving between subsequent laser shots to refresh the excited sample volume. With less than 45 μl of solution for 150 μm optical thickness, sample usage is economical. Cell assembly is a key step and covered in an illustrated protocol.
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Affiliation(s)
- E Deniz
- Institute of Biophysics, Goethe University Frankfurt am Main, Frankfurt am Main 60438, Germany
| | - J G Löffler
- Institute of Biophysics, Goethe University Frankfurt am Main, Frankfurt am Main 60438, Germany
| | - A Kondratiev
- Institute of Biophysics, Goethe University Frankfurt am Main, Frankfurt am Main 60438, Germany
| | - A R Thun
- Institute of Biophysics, Goethe University Frankfurt am Main, Frankfurt am Main 60438, Germany
| | - Y Shen
- Institute of Biophysics, Goethe University Frankfurt am Main, Frankfurt am Main 60438, Germany
| | - G Wille
- Institute of Biophysics, Goethe University Frankfurt am Main, Frankfurt am Main 60438, Germany
| | - J Bredenbeck
- Institute of Biophysics, Goethe University Frankfurt am Main, Frankfurt am Main 60438, Germany
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Deniz E, Sibar S, Kilic O, Ayhan S. Comparison of effectiveness of four facial masks used during the COVID-19 pandemic using indocyanine green and fluorescent angiography device: A plastic surgeon perspective. Turk J Plast Surg 2021. [DOI: 10.4103/tjps.tjps_105_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Dur AH, Tang T, Viviano S, Sekuri A, Willsey HR, Tagare HD, Kahle KT, Deniz E. In Xenopus ependymal cilia drive embryonic CSF circulation and brain development independently of cardiac pulsatile forces. Fluids Barriers CNS 2020; 17:72. [PMID: 33308296 PMCID: PMC7731788 DOI: 10.1186/s12987-020-00234-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 11/28/2020] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Hydrocephalus, the pathological expansion of the cerebrospinal fluid (CSF)-filled cerebral ventricles, is a common, deadly disease. In the adult, cardiac and respiratory forces are the main drivers of CSF flow within the brain ventricular system to remove waste and deliver nutrients. In contrast, the mechanics and functions of CSF circulation in the embryonic brain are poorly understood. This is primarily due to the lack of model systems and imaging technology to study these early time points. Here, we studied embryos of the vertebrate Xenopus with optical coherence tomography (OCT) imaging to investigate in vivo ventricular and neural development during the onset of CSF circulation. METHODS Optical coherence tomography (OCT), a cross-sectional imaging modality, was used to study developing Xenopus tadpole brains and to dynamically detect in vivo ventricular morphology and CSF circulation in real-time, at micrometer resolution. The effects of immobilizing cilia and cardiac ablation were investigated. RESULTS In Xenopus, using OCT imaging, we demonstrated that ventriculogenesis can be tracked throughout development until the beginning of metamorphosis. We found that during Xenopus embryogenesis, initially, CSF fills the primitive ventricular space and remains static, followed by the initiation of the cilia driven CSF circulation where ependymal cilia create a polarized CSF flow. No pulsatile flow was detected throughout these tailbud and early tadpole stages. As development progressed, despite the emergence of the choroid plexus in Xenopus, cardiac forces did not contribute to the CSF circulation, and ciliary flow remained the driver of the intercompartmental bidirectional flow as well as the near-wall flow. We finally showed that cilia driven flow is crucial for proper rostral development and regulated the spatial neural cell organization. CONCLUSIONS Our data support a paradigm in which Xenopus embryonic ventriculogenesis and rostral brain development are critically dependent on ependymal cilia-driven CSF flow currents that are generated independently of cardiac pulsatile forces. Our work suggests that the Xenopus ventricular system forms a complex cilia-driven CSF flow network which regulates neural cell organization. This work will redirect efforts to understand the molecular regulators of embryonic CSF flow by focusing attention on motile cilia rather than other forces relevant only to the adult.
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Affiliation(s)
- A H Dur
- Department of Pediatrics, Yale University School of Medicine, 333 Cedar Street, New Haven, CT, 06510, USA
- Acibadem Mehmet Ali Aydinlar University School of Medicine, Istanbul, Turkey
| | - T Tang
- Department of Radiology and Biomedical Imaging, Yale University, 300 Cedar St, New Haven, CT, 06510, USA
| | - S Viviano
- Department of Pediatrics, Yale University School of Medicine, 333 Cedar Street, New Haven, CT, 06510, USA
- Pediatric Genomics Discovery Program, Yale University School of Medicine, 333 Cedar Street, New Haven, CT, 06510, USA
| | - A Sekuri
- Acibadem Mehmet Ali Aydinlar University School of Medicine, Istanbul, Turkey
| | - H R Willsey
- Department of Psychiatry and Behavioral Sciences, UCSF Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA, 94143, USA
| | - H D Tagare
- Department of Radiology and Biomedical Imaging, Yale University, 300 Cedar St, New Haven, CT, 06510, USA
| | - K T Kahle
- Department of Pediatrics, Yale University School of Medicine, 333 Cedar Street, New Haven, CT, 06510, USA
- Department of Neurosurgery and Cellular & Molecular Physiology, and Centers for Mendelian Genomics, Yale University School of Medicine, 333 Cedar Street, New Haven, CT, 06510, USA
| | - E Deniz
- Department of Pediatrics, Yale University School of Medicine, 333 Cedar Street, New Haven, CT, 06510, USA.
- Pediatric Genomics Discovery Program, Yale University School of Medicine, 333 Cedar Street, New Haven, CT, 06510, USA.
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Manav S, Ayhan MS, Deniz E, Özkoçer E, Elmas Ç, Yalinay M, Şahin E. Erratum to "Capsular contracture around silicone mini implants following bacterial contamination: an in vivo comparative experimental study between textured and polyurethane implants" [Journal of Plastic, Reconstructive & Aesthetic Surgery 73(9) (2020) 1747-1757]. J Plast Reconstr Aesthet Surg 2020; 73:2261. [PMID: 33060055 DOI: 10.1016/j.bjps.2020.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Safa Manav
- Gazi University Faculty of Medicine, Department of Plastic Reconstructive and Aesthetic Surgery, Ankara, Turkey
| | - M Sühan Ayhan
- Gazi University Faculty of Medicine, Department of Plastic Reconstructive and Aesthetic Surgery, Ankara, Turkey.
| | - Erkan Deniz
- Gazi University Faculty of Medicine, Department of Plastic Reconstructive and Aesthetic Surgery, Ankara, Turkey
| | - Esra Özkoçer
- Gazi University Faculty of Medicine, Department of Histology and Embryology, Ankara, Turkey
| | - Çiğdem Elmas
- Gazi University Faculty of Medicine, Department of Histology and Embryology, Ankara, Turkey
| | - Meltem Yalinay
- Gazi University Faculty of Medicine, Department of Medical Microbiology, Ankara, Turkey
| | - Erdem Şahin
- Gazi University Faculty of Medicine, Department of Medical Microbiology, Ankara, Turkey
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Manav S, Ayhan MS, Deniz E, Özkoçer E, Elmas Ç, Yalinay M, Şahin E. Capsular contracture around silicone miniimplants following bacterial contamination: an in vivo comparative experimental study between textured and polyurethane implants. J Plast Reconstr Aesthet Surg 2020; 73:1747-1757. [DOI: 10.1016/j.bjps.2020.02.049] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 02/04/2020] [Accepted: 02/25/2020] [Indexed: 11/28/2022]
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Hanke J, Dogan G, Mariani S, Deniz E, Chatterjee A, Merzah A, Li T, Alhumood K, Altayyeb Y, Tarazi R, Haverich A, Schmitto J. HeartMate 3 as Total Artificial Heart for the Treatment of Biventricular Heart Failure as Bridge to Transplantation. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.1160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Hanke J, Dogan G, Mariani S, Deniz E, Merzah A, Chatterjee A, Haverich A, Schmitto JD. Effect of Artificial Pulse and Pulsatility on Gastrointestinal Bleeding Rates after Left Ventricular Assist Device Implantation. Thorac Cardiovasc Surg 2020. [DOI: 10.1055/s-0040-1705391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Deniz E, Şengür A, Kadiroğlu Z, Guo Y, Bajaj V, Budak Ü. Transfer learning based histopathologic image classification for breast cancer detection. Health Inf Sci Syst 2018; 6:18. [PMID: 30279988 PMCID: PMC6162199 DOI: 10.1007/s13755-018-0057-x] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [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: 05/30/2018] [Accepted: 09/17/2018] [Indexed: 10/28/2022] Open
Abstract
Breast cancer is one of the leading cancer type among women in worldwide. Many breast cancer patients die every year due to the late diagnosis and treatment. Thus, in recent years, early breast cancer detection systems based on patient's imagery are in demand. Deep learning attracts many researchers recently and many computer vision applications have come out in various environments. Convolutional neural network (CNN) which is known as deep learning architecture, has achieved impressive results in many applications. CNNs generally suffer from tuning a huge number of parameters which bring a great amount of complexity to the system. In addition, the initialization of the weights of the CNN is another handicap that needs to be handle carefully. In this paper, transfer learning and deep feature extraction methods are used which adapt a pre-trained CNN model to the problem at hand. AlexNet and Vgg16 models are considered in the presented work for feature extraction and AlexNet is used for further fine-tuning. The obtained features are then classified by support vector machines (SVM). Extensive experiments on a publicly available histopathologic breast cancer dataset are carried out and the accuracy scores are calculated for performance evaluation. The evaluation results show that the transfer learning produced better result than deep feature extraction and SVM classification.
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Affiliation(s)
- Erkan Deniz
- Technology Faculty, Electrical and Electronics Engineering Department, Firat University, Elazig, Turkey
| | - Abdulkadir Şengür
- Technology Faculty, Electrical and Electronics Engineering Department, Firat University, Elazig, Turkey
| | - Zehra Kadiroğlu
- Technology Faculty, Electrical and Electronics Engineering Department, Firat University, Elazig, Turkey
| | - Yanhui Guo
- Department of Computer Science, University of Illinois at Springfield, Springfield, IL USA
| | - Varun Bajaj
- Discipline of Electronics and Communication Engineering, PDPM Indian Institute of Information Technology, Design and Manufacturing, Jabalpur, India
| | - Ümit Budak
- Electrical and Electronics Engineering Department, Engineering Faculty, Bitlis Eren University, Bitlis, Turkey
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Deniz E, Eberl KB, Bredenbeck J. Note: An automatic liquid nitrogen refilling system for small (detector) Dewar vessels. Rev Sci Instrum 2018; 89:116101. [PMID: 30501329 DOI: 10.1063/1.5046637] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 10/18/2018] [Indexed: 06/09/2023]
Abstract
Many infrared spectroscopy setups are in principle stable enough to run overnight or longer, but the detector's Dewar vessel must be refilled manually with liquid nitrogen (LN2) every couple of hours. Commercial automatic LN2 refilling systems work reliably only for large Dewars. Here, we present a refilling system which can non-invasively be applied to already installed small Dewars. The system reliably refills LN2 once it has dropped below an adjustable level, with quick refilling (<3 min) for a 0.6 l Dewar. Our design protects the setup and the detector from overflowing or running without LN2.
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Affiliation(s)
- E Deniz
- Institute of Biophysics, Goethe University Frankfurt am Main, Frankfurt am Main 60438, Germany
| | - K B Eberl
- Institute of Biophysics, Goethe University Frankfurt am Main, Frankfurt am Main 60438, Germany
| | - J Bredenbeck
- Institute of Biophysics, Goethe University Frankfurt am Main, Frankfurt am Main 60438, Germany
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Dogan G, Hanke J, Deniz E, Cebotari S, Chatterjee A, Feldmann C, Haverich A, Schmitto J. Left Ventricular Assist Device Implantation after MitraClip Procedure. Thorac Cardiovasc Surg 2018. [DOI: 10.1055/s-0038-1628033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- G. Dogan
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - J. Hanke
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - E. Deniz
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - S. Cebotari
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - A. Chatterjee
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - C. Feldmann
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - A. Haverich
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - J. Schmitto
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
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Rojas S, Hanke J, Uribarri A, Avsar M, Dogan G, Deniz E, Ricklefs M, Haverich A, Schmitto J. Usefulness of the INTERMACS Scale to Predict Outcomes in Patients Undergoing Ventricular Assist Device Implant Through Less Invasive Surgery. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Feldmann C, Deniz E, Schmidt T, Hoffmann J, Hanke J, Rojas S, Dogan G, Berliner D, Bara C, Bara C, Warnecke G, Haverich A, Schmitto J, Reiss N. Telemonitoring in LVAD-Patients: Acceptance and Need. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.698] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Uribarri A, Rojas S, Hanke J, Avsar M, Dogan G, Deniz E, Ricklefs M, Haverich A, Schmitto J. Is ICD Implantation Necessary in Patients with Left Ventricular Assist Device Therapy? J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Böthig D, Feldmann C, Hanke J, Rojas S, Deniz E, Dogan G, Haverich A, Schmitto J. Previous Cardiac Operations Do Not Significantly Influence Outcome After Minimally Invasive HVAD Implantation. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Hanke J, Rojas S, Dogan G, Feldmann C, Beckmann E, Deniz E, Shrestha M, Haverich A, Schmitto J. First Series of Left Ventricular Assist Device Upgrades to HeartMate 3. Thorac Cardiovasc Surg 2017. [DOI: 10.1055/s-0037-1598839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- J.S. Hanke
- Medizinische Hochschule Hannover, Herz-, Thorax-, Gefäß- und Transplantationschirurgie, Hannover, Germany
| | - S.V. Rojas
- Medizinische Hochschule Hannover, Herz-, Thorax-, Gefäß- und Transplantationschirurgie, Hannover, Germany
| | - G. Dogan
- Medizinische Hochschule Hannover, Herz-, Thorax-, Gefäß- und Transplantationschirurgie, Hannover, Germany
| | - C. Feldmann
- Medizinische Hochschule Hannover, Herz-, Thorax-, Gefäß- und Transplantationschirurgie, Hannover, Germany
| | - E. Beckmann
- Medizinische Hochschule Hannover, Herz-, Thorax-, Gefäß- und Transplantationschirurgie, Hannover, Germany
| | - E. Deniz
- Medizinische Hochschule Hannover, Herz-, Thorax-, Gefäß- und Transplantationschirurgie, Hannover, Germany
| | - M. Shrestha
- Medizinische Hochschule Hannover, Herz-, Thorax-, Gefäß- und Transplantationschirurgie, Hannover, Germany
| | - A. Haverich
- Medizinische Hochschule Hannover, Herz-, Thorax-, Gefäß- und Transplantationschirurgie, Hannover, Germany
| | - J.D. Schmitto
- Medizinische Hochschule Hannover, Herz-, Thorax-, Gefäß- und Transplantationschirurgie, Hannover, Germany
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Feldmann C, Deniz E, Stomps A, Hanke J, Rojas S, Dogan G, Haverich A, Schmitto J. Local Pump Thrombus Lysis: First In vitro Results with the VAD Maintenance System. Thorac Cardiovasc Surg 2017. [DOI: 10.1055/s-0037-1598793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- C. Feldmann
- Medizinische Hochschule Hannover, Klinik für Herz -, Thorax-, Transplantations- und Gefäßchirurgie, Hannover, Germany
| | - E. Deniz
- Medizinische Hochschule Hannover, Klinik für Herz -, Thorax-, Transplantations- und Gefäßchirurgie, Hannover, Germany
| | - A. Stomps
- Medizinische Hochschule Hannover, Klinik für Herz -, Thorax-, Transplantations- und Gefäßchirurgie, Hannover, Germany
| | - J.S. Hanke
- Medizinische Hochschule Hannover, Klinik für Herz -, Thorax-, Transplantations- und Gefäßchirurgie, Hannover, Germany
| | - S.V. Rojas
- Medizinische Hochschule Hannover, Klinik für Herz -, Thorax-, Transplantations- und Gefäßchirurgie, Hannover, Germany
| | - G. Dogan
- Medizinische Hochschule Hannover, Klinik für Herz -, Thorax-, Transplantations- und Gefäßchirurgie, Hannover, Germany
| | - A. Haverich
- Medizinische Hochschule Hannover, Klinik für Herz -, Thorax-, Transplantations- und Gefäßchirurgie, Hannover, Germany
| | - J.D. Schmitto
- Medizinische Hochschule Hannover, Klinik für Herz -, Thorax-, Transplantations- und Gefäßchirurgie, Hannover, Germany
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Deniz E, Hanke J, Schwick F, Rojas-Hernandez S, Dogan G, Feldmann C, Molitoris U, Fegbeutel C, Bara C, Shrestha M, Haverich A, Schmitto J. First Experience with the HeartAssist5® Left Ventricular Assist Device. Thorac Cardiovasc Surg 2017. [DOI: 10.1055/s-0037-1598840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- E. Deniz
- Hannover Medical School, Cardiac, Thoracic, Transplant and Vascular Surgery, Hannover, Germany
| | - J.S. Hanke
- Hannover Medical School, Cardiac, Thoracic, Transplant and Vascular Surgery, Hannover, Germany
| | - F. Schwick
- Hannover Medical School, Cardiac, Thoracic, Transplant and Vascular Surgery, Hannover, Germany
| | - S.V. Rojas-Hernandez
- Hannover Medical School, Cardiac, Thoracic, Transplant and Vascular Surgery, Hannover, Germany
| | - G. Dogan
- Hannover Medical School, Cardiac, Thoracic, Transplant and Vascular Surgery, Hannover, Germany
| | - C. Feldmann
- Hannover Medical School, Cardiac, Thoracic, Transplant and Vascular Surgery, Hannover, Germany
| | - U. Molitoris
- Hannover Medical School, Cardiac, Thoracic, Transplant and Vascular Surgery, Hannover, Germany
| | - C. Fegbeutel
- Hannover Medical School, Cardiac, Thoracic, Transplant and Vascular Surgery, Hannover, Germany
| | - C. Bara
- Hannover Medical School, Cardiac, Thoracic, Transplant and Vascular Surgery, Hannover, Germany
| | - M. Shrestha
- Hannover Medical School, Cardiac, Thoracic, Transplant and Vascular Surgery, Hannover, Germany
| | - A. Haverich
- Hannover Medical School, Cardiac, Thoracic, Transplant and Vascular Surgery, Hannover, Germany
| | - J.D. Schmitto
- Hannover Medical School, Cardiac, Thoracic, Transplant and Vascular Surgery, Hannover, Germany
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Reiss N, Schmidt T, Feldmann C, Deniz E, Mommertz S, Haverich A, Willemsen D, Schmitto J. Different Indications for Inert Gas Rebreathing in the Management of LVAD Patients. Thorac Cardiovasc Surg 2017. [DOI: 10.1055/s-0037-1598844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- N. Reiss
- Schüchtermann Klinik, Bad Rothenfelde, Germany
| | - T. Schmidt
- Schüchtermann Klinik, Bad Rothenfelde, Germany
| | - C. Feldmann
- Medizinische Hochschule Hannover, Hannover, Germany
| | - E. Deniz
- Medizinische Hochschule Hannover, Hannover, Germany
| | - S. Mommertz
- Schüchtermann Klinik, Bad Rothenfelde, Germany
| | - A. Haverich
- Medizinische Hochschule Hannover, Hannover, Germany
| | | | - J. Schmitto
- Medizinische Hochschule Hannover, Hannover, Germany
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Deniz E, Feldmann C, Schmidt T, Hoffmann J, Hanke J, Rojas-Hernandez S, Dogan G, Berliner D, Bara C, Warnecke G, Haverich A, Schmitto J, Reiss N. The Impact of Telemonitoring in Patients with Ventricular Assist Device. Thorac Cardiovasc Surg 2017. [DOI: 10.1055/s-0037-1598927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- E. Deniz
- Cardiac, Thoracic, Transplant and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - C. Feldmann
- Cardiac, Thoracic, Transplant and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - T. Schmidt
- Schüchtermann Klinik, Bad Rothenfelde, Germany
| | | | - J. Hanke
- Cardiac, Thoracic, Transplant and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - S.V. Rojas-Hernandez
- Cardiac, Thoracic, Transplant and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - G. Dogan
- Cardiac, Thoracic, Transplant and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - D. Berliner
- Hannover Medical School, Cardiology and Angiology, Hannover, Germany
| | - C. Bara
- Cardiac, Thoracic, Transplant and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - G. Warnecke
- Cardiac, Thoracic, Transplant and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - A. Haverich
- Cardiac, Thoracic, Transplant and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - J.D. Schmitto
- Cardiac, Thoracic, Transplant and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - N. Reiss
- Schüchtermann Klinik, Bad Rothenfelde, Germany
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Hanke J, Rojas S, Dogan G, Deniz E, Feldmann C, Haverich A, Schmitto J. Left Ventricular Assist Device Infection - Does Device Exchange Solve the Problem? Thorac Cardiovasc Surg 2017. [DOI: 10.1055/s-0037-1598791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- J.S. Hanke
- Medizinische Hochschule Hannover, Herz-, Thorax-, Gefäß- und Transplantationschirurgie, Hannover, Germany
| | - S.V. Rojas
- Medizinische Hochschule Hannover, Herz-, Thorax-, Gefäß- und Transplantationschirurgie, Hannover, Germany
| | - G. Dogan
- Medizinische Hochschule Hannover, Herz-, Thorax-, Gefäß- und Transplantationschirurgie, Hannover, Germany
| | - E. Deniz
- Medizinische Hochschule Hannover, Herz-, Thorax-, Gefäß- und Transplantationschirurgie, Hannover, Germany
| | - C. Feldmann
- Medizinische Hochschule Hannover, Herz-, Thorax-, Gefäß- und Transplantationschirurgie, Hannover, Germany
| | - A. Haverich
- Medizinische Hochschule Hannover, Herz-, Thorax-, Gefäß- und Transplantationschirurgie, Hannover, Germany
| | - J.D. Schmitto
- Medizinische Hochschule Hannover, Herz-, Thorax-, Gefäß- und Transplantationschirurgie, Hannover, Germany
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Hanke J, Dogan G, Rojas S, Feldmann C, Deniz E, Murat A, Warnecke G, Haverich A, Schmitto J. Real World Experience with HeartMate 3 - One Year Follow-Up. Thorac Cardiovasc Surg 2017. [DOI: 10.1055/s-0037-1598843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- J.S. Hanke
- Medizinische Hochschule Hannover, Herz-, Thorax-, Gefäß- und Transplantationschirurgie, Hannover, Germany
| | - G. Dogan
- Medizinische Hochschule Hannover, Herz-, Thorax-, Gefäß- und Transplantationschirurgie, Hannover, Germany
| | - S.V. Rojas
- Medizinische Hochschule Hannover, Herz-, Thorax-, Gefäß- und Transplantationschirurgie, Hannover, Germany
| | - C. Feldmann
- Medizinische Hochschule Hannover, Herz-, Thorax-, Gefäß- und Transplantationschirurgie, Hannover, Germany
| | - E. Deniz
- Medizinische Hochschule Hannover, Herz-, Thorax-, Gefäß- und Transplantationschirurgie, Hannover, Germany
| | - A. Murat
- Medizinische Hochschule Hannover, Herz-, Thorax-, Gefäß- und Transplantationschirurgie, Hannover, Germany
| | - G. Warnecke
- Medizinische Hochschule Hannover, Herz-, Thorax-, Gefäß- und Transplantationschirurgie, Hannover, Germany
| | - A. Haverich
- Medizinische Hochschule Hannover, Herz-, Thorax-, Gefäß- und Transplantationschirurgie, Hannover, Germany
| | - J.D. Schmitto
- Medizinische Hochschule Hannover, Herz-, Thorax-, Gefäß- und Transplantationschirurgie, Hannover, Germany
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Deniz E, Feldmann C, Stomps A, Schwick F, Krolitzki B, Hanke J, Rojas-Hernandez S, Dogan G, Glasmacher B, Tudorache I, Cebotari S, Haverich A, Schmitto J. The Impact of Thrombus Size and Localization on Acoustic Signals in Ventricular Assist Devices. Thorac Cardiovasc Surg 2017. [DOI: 10.1055/s-0037-1598792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- E. Deniz
- Hannover Medical School, Cardiac, Thoracic, Transplant and Vascular Surgery, Hannover, Germany
| | - C. Feldmann
- Hannover Medical School, Cardiac, Thoracic, Transplant and Vascular Surgery, Hannover, Germany
| | - A. Stomps
- Leibniz Universität Hannover, Hannover, Germany
| | - F. Schwick
- Hannover Medical School, Cardiac, Thoracic, Transplant and Vascular Surgery, Hannover, Germany
| | | | - J.S. Hanke
- Hannover Medical School, Cardiac, Thoracic, Transplant and Vascular Surgery, Hannover, Germany
| | - S.V. Rojas-Hernandez
- Hannover Medical School, Cardiac, Thoracic, Transplant and Vascular Surgery, Hannover, Germany
| | - G. Dogan
- Hannover Medical School, Cardiac, Thoracic, Transplant and Vascular Surgery, Hannover, Germany
| | | | - I. Tudorache
- Hannover Medical School, Cardiac, Thoracic, Transplant and Vascular Surgery, Hannover, Germany
| | - S. Cebotari
- Hannover Medical School, Cardiac, Thoracic, Transplant and Vascular Surgery, Hannover, Germany
| | - A. Haverich
- Hannover Medical School, Cardiac, Thoracic, Transplant and Vascular Surgery, Hannover, Germany
| | - J.D. Schmitto
- Hannover Medical School, Cardiac, Thoracic, Transplant and Vascular Surgery, Hannover, Germany
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Arslan A, Ozcakir-Tomruk C, Deniz E, Akin O. A case report of metastasis of malignant mesothelioma to the retromolar trigone. World J Surg Oncol 2016; 14:188. [PMID: 27439511 PMCID: PMC4955152 DOI: 10.1186/s12957-016-0942-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [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: 03/01/2016] [Accepted: 07/08/2016] [Indexed: 12/20/2022] Open
Abstract
Background Malignant mesothelioma is a rare and aggressive tumor with a poor prognosis. Distant metastases are very rare, and the oral cavity metastases are exceedingly rare. Only a few cases with metastasis to oral gingiva are reported. To our knowledge, this is the first case report of pleural mesothelioma metastasized to the retromolar trigone. Case presentation A 59-year-old male was referred with a painless growth at retromolar trigone area. It had been present for 2 months and had increased in size during this period of time. Past medical history revealed a malignant mesothelioma. Intraoral examination showed a soft, haemorrhagic, ulcerated lesion at the right retromolar trigone area. There was no destruction of the bony architecture. An incisional biopsy was performed under local anaesthesia. Based on the histopathological and immunohistochemical findings, a final diagnosis of metastatic mesothelioma was made. The patient was informed about the possibility of multiple metastases within the body, but he succumbed after 45 days following deterioration of his medical condition. Conclusions Biopsy, history of the patient and clinical picture were provided to the clinicians to make an efficient differential diagnosis. Differential diagnosis must be performed with other oral cancers, because the management is totally different.
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Affiliation(s)
- A Arslan
- Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Yeditepe University, Bagdat Cad, No: 238, Goztepe, 34728, Istanbul, Turkey.
| | - C Ozcakir-Tomruk
- Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Yeditepe University, Bagdat Cad, No: 238, Goztepe, 34728, Istanbul, Turkey
| | - E Deniz
- Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Yeditepe University, Bagdat Cad, No: 238, Goztepe, 34728, Istanbul, Turkey
| | - O Akin
- Patomed Pathology Laboratory, Gursel Mah, Darulaceze Cad, Eksioglu Is Merkezi, Kat:3, No: 36, D:4, Okmeydani, Istanbul, Turkey
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Reiss N, Deniz E, Jan S, Willemsen D. Inpatient Rehabilitation of Biventricular Support Patients - A Special Challenge. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.1126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Deniz E, Reiss N, Avsar M, Rojas S, Hanke SJ, Martens A, Tudorache I, Ismail I, Haverich A, Schmitto JD. The Clinical Impact of Atrial Arrhythmia in Patients with Left Ventricular Assist Device. Thorac Cardiovasc Surg 2016. [DOI: 10.1055/s-0036-1571571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Deniz E, Röper G, Reiss N, Rojas Hernandez S, Hanke SJ, Cebotari S, Optenhöfel J, Avsar M, Schilling T, Haverich A, Schmitto JD. Digital Stethoskope System-VADoskope: A New Diagnostic Tool to Detect Thrombus Formation. Thorac Cardiovasc Surg 2016. [DOI: 10.1055/s-0036-1571672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Rojas S, Avsar M, Hanke J, Deniz E, Hillert M, Tümler K, Kühn C, Martens A, Warnecke G, Shrestha M, Cebotari S, Haverich A, Schmitto J. Less Invasive LVAD Surgery in Cardiogenic Shock. Thorac Cardiovasc Surg 2016. [DOI: 10.1055/s-0036-1571749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Rojas S, Avsar M, Hanke J, Deniz E, Meier A, Tümler K, Martens A, Cebotari S, Haverich A, Schmitto J. Minimally Invasive LVAD Surgery in Septuagenarians. Thorac Cardiovasc Surg 2015. [DOI: 10.1055/s-0035-1544298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Rojas S, Avsar M, Hanke J, Deniz E, Bara C, Martens A, Shrestha M, Cebotari S, Haverich A, Schmitto J. Less Invasive Left Ventricular Assist Device Implantation with Outflow-Graft Tunnelling through the Sinus Transversus. Thorac Cardiovasc Surg 2015. [DOI: 10.1055/s-0035-1544266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Saruhanoğlu A, Ergun S, Kaya M, Warnakulasuriya S, Erbağcı M, Öztürk Ş, Deniz E, Özel S, Çefle K, Palanduz Ş, Tanyeri H. Evaluation of micronuclear frequencies in both circulating lymphocytes and buccal epithelial cells of patients with oral lichen planus and oral lichenoid contact reactions. Oral Dis 2013; 20:521-7. [DOI: 10.1111/odi.12169] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Revised: 03/25/2013] [Accepted: 07/11/2013] [Indexed: 12/24/2022]
Affiliation(s)
- A Saruhanoğlu
- Faculty of Dentistry Department of Oral Surgery Istanbul University Istanbul Turkey
| | - S Ergun
- Faculty of Dentistry Department of Oral Surgery Istanbul University Istanbul Turkey
| | - M Kaya
- Medical Genetics Programme at the Institute of Health Sciences Istanbul University Istanbul Turkey
| | | | - M Erbağcı
- Medical Genetics Programme at the Institute of Health Sciences Istanbul University Istanbul Turkey
| | - Ş Öztürk
- Faculty of Medicine Division of Medical Genetics Department of Internal Medicine Istanbul University Istanbul Turkey
| | - E Deniz
- Faculty of Dentistry Department of Oral Surgery Yeditepe University Yeditepe Turkey
| | - S Özel
- Faculty of Medicine Department of Biostatistics and Medical Informatics Istanbul University Istanbul Turkey
| | - K Çefle
- Faculty of Medicine Division of Medical Genetics Department of Internal Medicine Istanbul University Istanbul Turkey
| | - Ş Palanduz
- Faculty of Medicine Division of Medical Genetics Department of Internal Medicine Istanbul University Istanbul Turkey
| | - H Tanyeri
- Faculty of Dentistry Department of Oral Surgery Istanbul University Istanbul Turkey
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Ziyal IM, Ozcan OE, Deniz E, Bozkurt G, Ismailoğlu O. Early improvement of bilateral abducens nerve palsies following surgery of an anterior communicating artery aneurysm. Acta Neurochir (Wien) 2003; 145:159-61; discussion 161. [PMID: 12601466 DOI: 10.1007/s00701-002-1041-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Gozke E, Celebi D, Dortcan N, Deniz E, Us O, Akyuz G. A-waves and electrophysiologically established diagnoses. Electromyogr Clin Neurophysiol 2003; 43:33-5. [PMID: 12613138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
The aim of this study was to investigate the presence of A-waves in cases referred to our electromyography laboratory with various diagnoses and documentation of electrophysiologic diagnoses with A-waves. In cases where at least 3 motor nerves were analysed, during F response studies, A-waves having stabile latencies and amplitudes from minimum one third of submaximal and supramaximal stimuli were evaluated. Electrophysiologic diagnoses and the related nerves of cases with A-waves were recorded. A-waves were obtained from 38 out of 1604 cases (2.36%). Most of the cases (57.8%) with established A-waves consisted of patients with radiculopathies. A-waves were detected mostly in tibial nerve. Electrophysiologic analysis of 5 cases with A-waves has given normal results. Although mechanism of A-waves is not known completely, we suggest when obtained it must be remarked during routine electrophysiologic examination.
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Ardic S, Deniz E, Arbatli M, Ardic FA, Aysun A. A rare intrahepatic portacaval tubular shunt in a patient with spastic paraparesis. Australas Radiol 1997; 41:181-4. [PMID: 9153820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Although there are numerous communications between the portal and systemic venous systems, intrahepatic portosystemic venous shunts are not frequently encountered in clinical practice. Here we report a patient who presented with spastic paraparesis, who was found to have chronic liver disease with tubular intrahepatic portacaval shunting.
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Affiliation(s)
- S Ardic
- Department of Radiology, Ankara Numune State Hospital, Turkey
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Peşkircioğlu L, Karabulut A, Deniz E, Germiyanoğlu C, Erol D. The role of pentoxifylline in the treatment of erectile dysfunction due to borderline arterial insufficiency. Br J Urol 1996; 77:563-5. [PMID: 8777618 DOI: 10.1046/j.1464-410x.1996.89414.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To investigate the effects of pentoxifylline on penile blood flow and potency in patients with erectile dysfunction due to borderline arterial insufficiency. PATIENTS AND METHODS Following a routine diagnostic evaluation, 36 patients with borderline arterial disease diagnosed using penile duplex ultrasonography were included in the study. Of these patients, 20 (mean age 54 years, range 40-66) received 1.2 g of pentoxifylline daily, divided into three doses orally, for 2 months and 16 (mean age 54 years, range 34-65) received a placebo. Peak systolic velocities (PSVs) before and after the treatment were compared with those in patients receiving a placebo. The clinical improvement in erectile function was also evaluated. RESULTS Twelve of 20 patients receiving pentoxifylline had an increase in PSV at the end of the treatment period. The mean change in PSV achieved by pentoxifylline treatment (6.25 cm/s) was significantly higher than that achieved by the placebo (0.38 cm/s). Seven patients had a positive response (successful coitus achieved after treatment with pentoxifylline). No serious side-effects occurred. CONCLUSION Pentoxifylline was well tolerated and could increase penile arterial inflow, shown objectively as an increase in PSV on penile duplex ultrasonography. These findings should encourage further studies of the efficacy of pentoxifylline in the treatment of impotence.
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Affiliation(s)
- L Peşkircioğlu
- Department of Urology, Ministry of Health Ankara Hospital, Turkey
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Abstract
Aneurysms experimentally induced by using the silver nitrate coagulation method in 10 Wistar Albino rats are wrapped with Polyglactin 910 and Fibrin Sealant. 6 weeks later the rats are sacrificed and compared with the control group. In the group in which Polyglactin 910 and Fibrin Sealant were used as the wrapping material, non-specific inflammatory granulation tissue development around the aneurysms is observed. We suggest that a Polyglactin 910 and Fibrin Sealant combination can be used as a wrapping material in the treatment of aneurysms where clipping is not possible.
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Affiliation(s)
- M Uzan
- Department of Neurosurgery, Medical Faculty, Istanbul University Cerrahapasa, Turkey
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Arda K, Basar M, Deniz E, Yildiz S, Akpìnar L, Olçer T. Sonourethrography in anterior urethral stricture: comparison to radiographic urethrography. Arch Ital Urol Androl 1995; 67:249-54. [PMID: 7581525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Twenty-three male patients with known or suspected urethral stricture disease were evaluated using sonourethrography and standard retrograde x-ray urethrography for comparative analysis of two techniques. Results were evaluated statistically. These two methods can substitute each other in determining the stricture area length of anterior urethra. Due to advantages, if both of these methods are used combining each other, we believe that they will be much more sensitive.
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Affiliation(s)
- K Arda
- Türkiye Yüksek Ihtisas Hospital, Department of Radiology, Ankara, Turkey
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Erdem A, Deniz E, Ceylan I. [Investigation of pre- and post-treatment cephalometric measurements of the subjects treated by Edgewise technique]. Turk J Orthod 1990; 3:32-8. [PMID: 2101658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
In this study, pre and posttreatment cephalometric measurements of twenty-four cases, of which twelve had Angle Class I and twelve had Angle Class II, division 1 malocclusion were studied. Dental, skeletal and soft tissue changes were observed in both class I and class II, 1 malocclusions treated by Edgewise Technique with extraction.
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Affiliation(s)
- A Erdem
- Atatürk Universitesi, Dişhekimliği Fakültesi, Erzurum
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Erdem A, Ceylan I, Deniz E. [Tracing and measuring errors in the roentgenographic cephalometry]. Turk J Orthod 1989; 2:274-80. [PMID: 2489159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
In the present study, thirty cephalometric films which had been used in three different investigations using almost the same parameters were selected and divided into two groups. Twenty-three parameters in the first group and nine parameters in the second, which were used in two and three investigations respectively, were statistically compared. Paired t test was used in the first group and variance analysis in the second group. In conclusion, a lot of parameters exhibited statistically significant variability, while some of them were not.
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Abstract
Oromandibular limb hypogenesis/Hanhart's syndrome in a female infant with an antenatal history of meclizine hydrochloride usage during gestation is reported. The genetics of the syndrome are discussed and the possibility of the drug's influence on the malformation is suggested.
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