Left Ventricular Function: Correlation With Deformation of the Myocardium

Autor: C. A. Phillips, Edward S. Grood, R. E. Mates, H. L. Falsetti
Rok vydání: 1978
Předmět:
Zdroj: Journal of Biomechanical Engineering. 100:99-104
ISSN: 1528-8951
0148-0731
DOI: 10.1115/1.3426199
Popis: The amount of local tissue deformation at the equatorial region of the left ventricle is quantitated by the ratio of the instantaneous cross-sectional area of a tissue element to the cross-sectional area at end-diastole. The area ratio, AR, was computed for the circumferential and longitudinal, apex to base, direction throughout the cardiac cycle from catheterization and cineangiographic data on 36 patients. The patients were divided into four groups: normal left ventricualr function—15, compensated volume overload—6, decompensated volume overload—9, and congestive cardiomyopathy—6. The peak longitudinal area ratio was elevated in the compensated group (P
Databáze: OpenAIRE