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Automatic 4D mitral valve segmentation from transesophageal echocardiography: a semi-supervised learning approach.
Med Biol Eng Comput
January 2025
Department of Electronics, Information and Bioengineering, Politecnico di Milano, Milan, Italy.
Performing automatic and standardized 4D TEE segmentation and mitral valve analysis is challenging due to the limitations of echocardiography and the scarcity of manually annotated 4D images. This work proposes a semi-supervised training strategy using pseudo labelling for MV segmentation in 4D TEE; it employs a Teacher-Student framework to ensure reliable pseudo-label generation. 120 4D TEE recordings from 60 candidates for MV repair are used.
View Article and Find Full Text PDFExploratory Study of the Measurement of Geometric Height in 3D Transesophageal Echocardiography as a Predictor of Valve-Sparing Root Replacement for Aortic Regurgitation.
J Clin Med
December 2024
Department of Cardiac Surgery, The Jikei University School of Medicine, Tokyo 105-8461, Japan.
: Valve-sparing root replacement surgery is an alternative strategy for patients with aortic regurgitation with or without aortic root enlargement. A detailed understanding of the mechanisms of regurgitation and the morphology of the aortic root would be beneficial for predicting the feasibility and success of valve-sparing surgery. This is an exploratory study of the measurement of geometric height in 3D transesophageal echocardiography as a predictor of valve-sparing root replacement for aortic regurgitation.
View Article and Find Full Text PDFPreoperative Assessment of Degenerative Mitral Regurgitation: Advancing Toward a Less Invasive Approach With Three-Dimensional Transthoracic Echocardiography?
Echocardiography
January 2025
Cardiovascular Imaging Unit, Cardiothoracic Department, IRCCS San Raffaele Hospital, Milan, Italy.
Potential of right ventricular function assessment with echocardiography in transcatheter aortic valve replacement.
J Cardiothorac Surg
December 2024
Department of Cardiology, Thomas Jefferson University, Philadelphia, PA, 19107, USA.
Background: Right ventricular (RV) function assessment by echocardiography can be challenging due to its complex morphology. Also, increasing use of sedation rather than general anesthesia for transfemoral approach transcatheter aortic valve replacement (TAVR) reduces the need for intraoperative transesophageal echocardiography (TEE). Recent clinical studies have demonstrated the importance of 3-dimensional (3D) echocardiography and a longitudinal strain for RV function assessment.
View Article and Find Full Text PDFMultimodality Imaging Supports Cardiac Lesion Diagnosis in Patient With Liver Carcinoma: A Case Report.
Cancer Rep (Hoboken)
December 2024
Vietnam National Heart Institute, Bach Mai Hospital, Hanoi, Vietnam.
Introduction: Nonbacterial thrombotic endocarditis (NBTE) is a rare cardiac manifestation in patients with advanced malignancies of the lungs, pancreas, gynecological system, and gastrointestinal tract. It is often confirmed postmortem by histopathological evidence of sterile platelet-fibrin deposits attached to the endocardium, most often on heart valves. To the best of our knowledge, our case is the first to report multiple heart lesions caused by the systemic effect of cholangiocarcinoma.
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