• A diagnostic tool that uses high-frequency sound waves (ultrasound) to make images of the heart's size, structure and motion.
  Harvard Dictionary of Health Terms
  Harvard Medical Publishing, 2011
• A procedure that uses high-frequency sound waves (ultrasound) to create an image of the heart.
  CDISC Terminology
  Clinical Data Interchange Standards Consortium (CDISC), 2021
• A procedure that uses ultrasonic waves directed over the chest wall to obtain a graphic record of the heart's position, motion of the walls, or internal parts such as the valves.
  NCI Dictionary of Cancer Terms
  U.S. National Cancer Institute, 2021
• A procedure that uses high-frequency sound waves (ultrasound) to create an image of the heart.
  NCI
  U.S. National Cancer Institute, 2021
• (heart sonography) Graphic registration of the frequency and intensity of heart sounds.
  CRISP Thesaurus
  National Institutes of Health, 2006
• Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues; the standard approach is transthoracic.
  CRISP Thesaurus
  National Institutes of Health, 2006
• Echocardiography uses ultrasound waves to produce an image of the heart, the heart valves, and the great vessels. It helps assess heart wall thickness (eg, in hypertrophy or atrophy) and motion and provides information about ischemia and infarction. It can be used to assess systolic function as well as diastolic filling patterns of the...
  Merck Manuals
  Merck & Co., Inc., 2025
• The use of echocardiography as an imaging modality has increased substantially over the past decade. Cardiologists perform most echocardiography studies, with internists being the next most common providers of these studies (15% of all Medicare charges submitted for the procedure).
  Medscape
  WebMD, 2025
• An echocardiogram uses sound waves to produce images of your heart. This common test allows your doctor to see your heart beating and pumping blood. Your doctor can use the images from an echocardiogram to identify heart disease.
  Mayo Clinic
  Mayo Foundation for Medical Education and Research, 2025
• Echocardiography, diagnostic technique that uses ultrasound (high-frequency sound waves) to produce an image of the internal structures of the heart. A piezoelectric transducer placed on the surface of the chest emits a short burst of ultrasound waves and then measures the reflection, or echo, of...
  Encyclopedia Britannica
  Encyclopedia Britannica, Inc., 2025