## Abstract Dynamic shear modulus G′ was measured throughout the volume of three nonvariant silicone rubber poppets which were recovered from aortic prosthetic heart valves that had been implanted for 4 days, 52 days, and 8 years. Similar measurements were obtained for two unused silicone rubber po
Analysis of regurgitant jets in natural and bio-prosthetic heart valves
✍ Scribed by T. David; J. Clamp; J. Fisher
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 556 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0021-9290
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract ## Purpose: To assess in vitro the three‐dimensional mean velocity field and the extent and degree of turbulence intensity (TI) in different prosthetic heart valves using a generalization of phase‐contrast MRI (PC‐MRI). ## Materials and Methods: Four 27‐mm aortic valves (Björk‐Shiley
A scanning electron microscopy study is reported of the nature and morphology of fracture surfaces in pyrocarbons commonly u s e d for t h e m a n u f a c t u r e of mechanical heart-valve prostheses. Specifically, silicon-alloyed low-temperaturei s o t r o p i c (LT1)-pyrolytic c a r b o n is exami