Simplifying proximal isovelocity surface area as an assessment method of mitral valve area in patients with rheumatic mitral stenosis by fixing aliasing velocity and mitral valve angle. | Semantic Scholar
A Complete Guide to Performing MR PISA! Cardioserv
Calculation of Mitral Regurgitant Orifice Area with Use of a Simplified Proximal Convergence Method: Initial Clinical Applicatio