单词	echocardiogram
释义	echocardiogram /ˌɛkəʊˈkɑːdɪə(ʊ)ɡram / noun A test of the action of the heart using ultrasound waves to produce a visual display, for the diagnosis or monitoring of heart disease.Your child's cardiologist may use tools like X-rays, electrocardiograms, or echocardiograms to monitor the defect and the effects of treatment.... He had had a coronary angiogram and many echocardiograms and electrocardiograms at various cardiac centres. Because of its risks, angiography often is done only after certain other heart tests have been performed, such as an electrocardiogram, an echocardiogram or a stress test.
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