Ultrasonic energy backscattered from blood. An experimental determination of the variation of sound energy with hematocrit.
D000818:Animals; D001769:Blood; D004285:Dogs / Q000097:blood; D004301:Doppler Effect; D004912:Erythrocytes / Q000166:cytology; D006041:Goats / Q000097:blood; D006400:Hematocrit; D006405:Hematology / Q000295:instrumentation; D006801:Humans; D012212:Rheology; D014159:Transducers; D014465:Ultrasonics