echocardiogram
noun [ C ] medical specialized uk/ˌek.əʊˈkɑː.di.ə.ɡræm/ us/ˌek.oʊˈkɑːr.di.ə.ɡræm/
心脏超音波检查
a test using ultrasound (= sound waves used to produce an image of the inside of someone's body) to examine the structure of the heart and how well it is working
An echocardiogram showed her heart was pumping out only about 10% of the blood it collects, compared with about 60% in a healthy person. 心脏超音波检查显示，她心脏泵出的血液只占流到心脏血液量的10%左右，而健康人能泵出约60%的血液量。