ConferenceJTCVS Open · October 2024
OBJECTIVE: Biologic valves dominate tricuspid valve replacement, yet data on different valve types are lacking. We compare the survival and durability of porcine and pericardial tricuspid prostheses. METHODS: A retrospective review of consecutive patients ...
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ConferenceJTCVS Tech · December 2023
OBJECTIVE: We developed a hybrid technique for repairing post-myocardial infarction (MI) ventricular septal defect (VSD) that combines infarct exclusion with patch and a nitinol-mesh septal occluder device (SOD) to provide a scaffold to support the damaged ...
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ConferenceProceedings of SPIE the International Society for Optical Engineering · December 1, 1997
We describe an active contour based on the elliptical Fourier series, and its application to matrix-array ultrasound. Matrix-array ultrasound is a new medical imaging modality that scans a 3D-volume electronically without physically moving the transducer, ...
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ConferenceFASEB Journal · December 1, 1996
Adaptations of right ventricular (RV) systolic performance to chronic pulmonary stenosis (PS) in clinical RV failure are poorly understood. Therefore, 7 dogs underwent chronic implantation of pneumatic pulmonary artery occluders, and epicardial dimension t ...
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ConferenceFASEB Journal · December 1, 1996
Demonstrating the efficacy of Cardiac Gene Therapy (CGT) remains hindered by the inability to measure changes in in vivo cardiac function in small animals. Post-implantation of transfected biopsy-derived skeletal muscle cells into the left ventricle (LV) o ...
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ConferenceProceedings Computers in Cardiology Cic 1992 · January 1, 1992
Computer software for the IBM PC was developed to assess the contractile properties of the right and left ventricles simultaneously. Four indices of systolic function were computed from pressure and volume data. These four indices consist of the slopes and ...
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ConferenceProceedings of the Annual Conference on Engineering in Medicine and Biology · December 1, 1991
An impedance catheter volume measurement system was modeled in spherical and spheroidal configurations to see if geometric and conductivity parameters could be estimated from measured potentials. Good results were obtained in both noise free and noise adde ...
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ConferenceAmerican Society of Mechanical Engineers Paper · January 1, 1974
The dependence of ion-chamber current on the density of the filling gas has been investigated, experimentally and analytically, to explore the use of an ion chamber as a high-pressure gas densitometer. A flat-plate ion chamber with a self-contained beta-pa ...
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