Acute appendicitis: high-resolution real-time US findings.

Abstract:

:High-resolution, real-time ultrasonography (US) with graded compression was used to evaluate 90 patients with clinically suspected acute appendicitis. US visualization of a noncompressible appendix was the primary criterion for a diagnosis of acute appendicitis. The overall sensitivity was 89%, the specificity was 95%, and the accuracy was 93%. When the results in women were analyzed separately (n = 49), the overall accuracy was 96%. Several important limitations of US scanning were encountered. There were three false-positive examinations in patients with a sonographically visible appendix whose symptoms spontaneously resolved. Another patient had a normal compressible appendix with a thin (2-mm), symmetric wall surrounded by ascites. There were three nondiagnostic studies (3%) due to inability to compress the cecum and right lower quadrant adequately because of exquisite tenderness (two patients) or massive ascites (one patient). When interpreted in light of the clinical examination, sonography should significantly reduce the rate of false-negative appendectomies, particularly in women.

journal_name

Radiology

journal_title

Radiology

authors

Jeffrey RB Jr,Laing FC,Lewis FR

doi

10.1148/radiology.163.1.3547490

subject

Has Abstract

pub_date

1987-04-01 00:00:00

pages

11-4

issue

1

eissn

0033-8419

issn

1527-1315

journal_volume

163

pub_type

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