title: [Velocity to pressure ratio (U2/AP) as an index for left ventricular performance].
mesh_terms: D000818:Animals; D001783:Blood Flow Velocity; D001794:Blood Pressure; D002302:Cardiac Output; D004285:Dogs; D006321:Heart / Q000502:physiology*; D014655:Vascular Resistance; D016276:Ventricular Function