释义 |
DictionarySeeultrasoundcontinuous wave ultrasound
continuous wave ultrasoundA form of ultrasound used in echocardiography in which a dual crystal transducer continuously generates and receives an ultrasound signal. It is used to measure blood velocities, e.g., across heart valves. A serious shortcoming of continuous wave ultrasound is its inability to identify depth accurately. See also: ultrasound |