ul·tra·so·nog·ra·phy ( l tr -s-n g r-f )n. 1. Diagnostic imaging in which ultrasound is used to image an internal body structure or a developing fetus. 2. An imaging technique that uses high frequency sound waves to visualize underwater surfaces, boundaries, objects, and currents. In both senses also called echography. ul tra·so·nogra·pher n.ul tra·sono·graphic (-sn-gr f k, -s n-) adj. |
ultrasonography [ˌʌltrəsəˈnɒgrəfɪ]
n
(Medicine) the technique of using ultrasound to produce pictures of structures within the body, as for example of a fetus
| ultrasonography (ltr-s-ngr-f) 1. Diagnostic imaging in which ultrasound is used to image an internal body structure or a developing fetus. See Note at ultrasound. 2. An imaging technology that uses high-frequency sound waves to visualize underwater objects, topography, boundaries between layers, and currents. It is often used to locate underwater vehicles on the ocean floor. The sound waves are broadcast, and the timing and frequency shift of their echoes are analyzed in much the same manner as in sonar to produce an image or map of the phenomena or objects under investigation. Also called ultrasound. |
ultrasound, ultrasonography - Ultrasounds and ultrasonography work on the principle that sound is reflected at different speeds by tissues or substances of different densities.
See also related terms for reflected.
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  ultrasonography - using the reflections of high-frequency sound waves to construct an image of a body organ (a sonogram); commonly used to observe fetal growth or study bodily organsprenatal diagnosis - any of the diagnostic procedures used to determine whether a fetus has a genetic abnormality tomography, imaging - (medicine) obtaining pictures of the interior of the body A-scan ultrasonography - the use of ultrasonography to measure the length of the eyeball B-scan ultrasonography - the use of ultrasonography to view structure in the back of the eye |
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