Background The percutaneously implanted Edwards SAPIEN valve (Edwards Lifesciences, Irvine, CA) consists of cusps mounted within a stent. The individual impact of the stent and cusps on transvalvular flow and…
Strain is “stretching” in lay language, and “deformation” in technical terms, and can be used to measure and express myocardial deformation during contraction. Strain is a dimensionless quantity and is…
It has been more than 25 years since Hegrenaes and Hatle and Currie et al revolutionized the diagnostic approach to aortic stenosis by demonstrating an excellent correlation between aortic valve systolic…
Background A recent American College of Cardiology Foundation and American Society of Echocardiography document updated previous appropriate use criteria (AUC) for echocardiography. The aim of this study was to explore…
Appropriate Use Criteria (AUC) for a variety of cardiac imaging procedures were developed in response to the dramatic increase in the performance of and expenditures on cardiac imaging over the…
