title: Preoperative and postoperative evaluation of the cannulation site in patients undergoing open-heart surgery. The use of the Doppler ultrasonic flowmeter.
mesh_terms: D000293:Adolescent; D000328:Adult; D001161:Arteriosclerosis; D001783:Blood Flow Velocity / Q000295:instrumentation*; D006348:Cardiac Surgical Procedures; D002404:Catheterization; D002648:Child; D005112:Extracorporeal Circulation; D005260:Female; D005263:Femoral Artery / Q000601:surgery*; D006801:Humans; D008297:Male; D014463:Ultrasonography