[Principles of cardiovascular dynamics in the perspective of echocardiography].
The possibilities of applying the laws of dynamics to the study of myocardial mechanics are remarkable and to some extent neglected to characterize ventricular performance by the imaging techniques. There are potentially useful applications derived from the analyses of Doppler flow velocity profiles of left ventricular outflow to be applied to the study of cardiovascular dynamics. They include ejection force, pressure-volume work and ventricular power. All these variables require measurements that are easy to obtain even during a standard examination, like stroke volume, ventricular outflow velocity, and the velocity-time integral.
Dini
Frank Lloyd
FL
U.O. di Malattie Cardiovascolari 2, Ospedale S. Chiara, Azienda Ospedaliero-Universitaria Pisana, Via Roma, 67 56126 Pisa. f.dini@ao-pisa.toscana.it
Buralli
Simona
S
Gallina
Sabina
S
Galderisi
Maurizio
M
Mele
Donato
D
Mondillo
Sergio
S
Agricola
Eustachio
E
Di Bello
Vitantonio
V
Sciomer
Susanna
S
Ansalone
Gerardo
G
Di Salvo
Giovanni
G
Montisci
Roberta
R
Nistri
Stefano
S
Rosa
Gian Marco
GM
Marino
Paolo Nicola
PN
D001696:Biomechanical Phenomena; D055592:Biophysical Phenomena; D002320:Cardiovascular Physiological Phenomena; D004452:Echocardiography; D006321:Heart / Q000502:physiology*; D006801:Humans