- Types:
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echography, sonography, ultrasonography, ultrasound
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 organs
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amnio, amniocentesis
(pregnancy) extraction by centesis of amniotic fluid from a pregnant woman (after the 15th week of pregnancy) to aid in the diagnosis of fetal abnormalities
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fetoscopy, foetoscopy
prenatal diagnosis that allows direct observation of a fetus in the uterus and the withdrawal of fetal blood
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A-scan ultrasonography
the use of ultrasonography to measure the length of the eyeball
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B-scan ultrasonography
the use of ultrasonography to view structure in the back of the eye