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Depiction of normal gastrointestinal anatomy with MDCT: comparison of low- and high-attenuation oral contrast media.

Abstract：

PURPOSE:To compare low- and high-attenuation oral contrast media for depiction of normal gastrointestinal anatomy with multidetector-row computed tomography (MDCT). MATERIALS AND METHODS:A prospective, randomized study of 90 consecutive patients without known or suspected gastrointestinal disease was conducted after the approval of our Institutional Review Board. All patients underwent IV contrast-enhanced abdominal and pelvic CT scans after oral administration of 900 ml of either low- or high-attenuation barium sulphate suspension. Using a five-point scale, two radiologists independently graded distention and wall visualization of stomach, duodenum, jejunum, and ileum. The degree of distention and wall visualization was compared using Mann-Whitney U-test. RESULTS:Duodenal, jejunal and ileal distention (p<0.05, <0.001, <0.001, respectively) and wall visualization (p<0.05, <0.01, <0.05, respectively) scores with low-attenuation contrast medium were significantly higher than those with high-attenuation barium sulphate preparation, for reader 1. Duodenal and jejunal wall visualization scores with low-attenuation contrast medium (p<0.05, <0.01, respectively) were significantly higher than those with high-attenuation contrast medium, for reader 2. Interobserver agreement was fair to good for both distention (kappa-range: 0.41-0.74) and wall visualization (kappa-range: 0.48-0.71). CONCLUSION:MDCT with low-attenuation contrast medium provides distention and wall visualization of the GI tract that is equal or better than high-attenuation contrast medium.

journal_name

Eur J Radiol

journal_title

European journal of radiology

authors

Erturk SM,Mortelé KJ,Oliva MR,Ichikawa T,Silverman SG,Cantisani V,Pagliara E,Ros PR

doi

10.1016/j.ejrad.2007.05.015

subject

Has Abstract

pub_date

2008-04-01 00:00:00

pages

84-7

issue

1

eissn

0720-048X

issn

1872-7727

pii

S0720-048X(07)00257-4

journal_volume

66

pub_type

杂志文章,随机对照试验

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