title: A noninvasive technique for the determination of velocity of circumferential fiber shortening in man.
mesh_terms: D001696:Biomechanical Phenomena; D002306:Cardiac Volume; D004452:Echocardiography; D006331:Heart Diseases / Q000175:diagnosis; D006334:Heart Function Tests; D006801:Humans; D008433:Mathematics; D008722:Methods; D013997:Time Factors; D014463:Ultrasonography; D016276:Ventricular Function