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Shadowing and reverberation artifacts in abdominal ultrasonography.

Abstract：

:The different features of 821 acoustic shadows recorded during abdominal US examinations were analysed to find out whether any of the features may be used in routine work to help to identify the often invisible structure casting the shadow. A constant shadow with closely spaced high level reverberation echoes is strongly suggestive of a metallic foreign body. Sharply defined shadowing without reverberation is mostly caused by stones, calcifications or scars. In a majority of cases, unsharply defined shadowing with numerous low level and sparsely spaced high level reverberation echoes is cast by gas collections. The morphology of an acoustic shadow in visceral sonography cannot alone be used as a basis for a definitive diagnosis.

journal_name

Eur J Radiol

journal_title

European journal of radiology

authors

Suramo I,Päivänsalo M,Vuoria P

subject

Has Abstract

pub_date

1985-05-01 00:00:00

pages

147-51

issue

2

eissn

0720-048X

issn

1872-7727

journal_volume

5

pub_type

杂志文章

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