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Accidentally Discovered Aortic Valve Papillary Fibroelastoma in a Patient Presenting With Inferior Myocardial Infarction.
Cureus
October 2024
Cardiovascular Medicine/Cardiology, College of Medicine, Kasr Alainy University, Cairo, EGY.
Article Synopsis
- * A case study described a 39-year-old man who experienced severe chest pain due to a heart attack linked to a PFE found on imaging, which showed a mass near his aortic valve.
- * The patient successfully underwent surgery to remove the tumor, and the case underscores the need for advanced imaging techniques to identify these rare tumors, as well as the urgency of surgery when they cause symptoms.
A free intravesicular C-terminal of otoferlin is essential for synaptic vesicle docking and fusion at auditory inner hair cell ribbon synapses.
Prog Neurobiol
September 2024
Institut Pasteur, Université Paris Cité, Inserm U06, Institut de l'Audition, Paris, France; Centre National de la Recherche Scientifique, Paris, France. Electronic address:
Our understanding of how otoferlin, the major calcium sensor in inner hair cells (IHCs) synaptic transmission, contributes to the overall dynamics of synaptic vesicle (SV) trafficking remains limited. To address this question, we generated a knock-in mouse model expressing an otoferlin-GFP protein, where GFP was fused to its C-terminal transmembrane domain. Similar to the wild type protein, the GFP-tagged otoferlin showed normal expression and was associated with IHC SV.
View Article and Find Full Text PDF3D observations provide striking findings in rubber elasticity.
Proc Natl Acad Sci U S A
June 2024
Department of Engineering, University of Cambridge, Cambridge CB2 1PZ, United Kingdom.
The mechanical response of rubbers has been ubiquitously assumed to be only a function of the imposed strain. Using innovative X-ray measurements capturing the three-dimensional spatial volumetric strain fields, we demonstrate that rubbers and indeed many common engineering polymers undergo significant local volume changes. But remarkably, the overall specimen volume remains constant regardless of the imposed loading.
View Article and Find Full Text PDFPurpose: This study assessed the accuracy of linear measurements and dental implant selection performed in a smartphone application compared to a computer software.
Materials And Methods: Forty-four DICOM files from the posterior mandible in partially edentulous patients were evaluated by three trained and calibrated examiners. Images were analyzed using three visualization methods: cross-sectional view (CScr) and coronal (CSco) plane using the CS 3D Imaging software, and coronal (DRco) plane using the DroidRender smartphone application.
Marker-based C-arm self-calibration with unknown calibration pattern.
Med Phys
June 2024
Université Grenoble Alpes, CNRS, UMR 5525, VetAgro Sup, Grenoble INP, INSERM, TIMC, Grenoble, France.
Background: Accurate tomographic reconstructions require the knowledge of the actual acquisition geometry. Many mobile C-arm CT scanners have poorly reproducible acquisition geometries and thus need acquisition-specific calibration procedures. Most of geometric self-calibration methods based on projection data either need prior information or are limited to the estimation of a low number of geometric calibration parameters.
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