Ultrasonic endoscope.
D000005:Abdomen; D000818:Animals; D004285:Dogs; D005069:Evaluation Studies as Topic; D005704:Gallbladder; D020699:Gastroscopes; D006503:Hepatic Veins; D008099:Liver / Q000098:blood supply; D011169:Portal Vein; D014465:Ultrasonics / Q000295:instrumentation*; D014463:Ultrasonography