Doppler ultrasound probe for assessment of blood-flow in oesophageal varices.
D004932:Esophageal and Gastric Varices / Q000175:diagnosis*; D004947:Esophagus / Q000098:blood supply*; D006801:Humans; D012039:Regional Blood Flow; D014465:Ultrasonics / Q000295:instrumentation; D014463:Ultrasonography