Diagnostic Procedure
ultrasonography
ul·tra·so·nog·ra·phy [ uhl-truh-suh-nog-ruh-fee, -soh- ]
Subclass of:
Diagnostic Imaging
Definitions related to ultrasonography:
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A procedure in which high-energy sound waves are bounced off internal tissues or organs and make echoes. The echo patterns are shown on the screen of an ultrasound machine, forming a picture of body tissues called a sonogram.NCI Dictionary of Cancer TermsU.S. National Cancer Institute, 2021
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A technique in which high-frequency sound waves are bounced off internal organs and the echo pattern is converted into a 2 dimensional picture of the structures beneath the transducer.NCI ThesaurusU.S. National Cancer Institute, 2021
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High frequency sound waves used to identify and examine internal organs and structures without the invasive hazards of X xays, dyes, or fluoroscopy.CRISP ThesaurusNational Institutes of Health, 2006
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The visualization of deep structures of the body by recording the reflections or echoes of ultrasonic pulses directed into the tissues. Use of ultrasound for imaging or diagnostic purposes employs frequencies ranging from 1.6 to 10 megahertz.NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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(diagnostic ultrasound) Use of ultrasound for imaging or diagnostic purposes. Employs frequencies ranging from 1.6 to 10 megahertz. (DCTD-DIP)NCI ThesaurusU.S. National Cancer Institute, 2021
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In ultrasonography, a signal generator is combined with a transducer. Piezoelectric crystals in the signal generator convert electricity into high-frequency sound waves, which are sent into tissues. The tissues scatter, reflect, and absorb the sound waves to various degrees. The sound waves that are reflected back (echoes) are converted...Merck & Co., Inc., 2020
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