Continuous measurement of internal left ventricular diameter.
D000818:Animals; D001011:Aorta / Q000502:physiology; D001146:Arrhythmia, Sinus; D001696:Biomechanical Phenomena; D001783:Blood Flow Velocity; D004285:Dogs; D004562:Electrocardiography; D006352:Heart Ventricles / Q000033:anatomy & histology*; D008991:Monitoring, Physiologic / Q000295:instrumentation*; D009119:Muscle Contraction; D010827:Physiology / Q000295:instrumentation*; D014159:Transducers; D014465:Ultrasonics; D016276:Ventricular Function