title: Ultrasound Doppler and echo combined as a noninvasive blood flowmeter.
mesh_terms: D000818:Animals; D001783:Blood Flow Velocity; D002302:Cardiac Output; D004285:Dogs; D004301:Doppler Effect; D008838:Microcomputers; D012212:Rheology; D013815:Thermodilution; D014463:Ultrasonography