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Related Experiment Video

Updated: Jul 7, 2026

Multimodality Diagnosis of Mesenteric Ischemia

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Published on: July 21, 2023

Obscure gastrointestinal bleeding: evaluation with 64-section multiphase CT enterography--initial experience.

James E Huprich¹, Joel G Fletcher, Jeffrey A Alexander

¹Department of Radiology, Mayo Clinic, 200 First Ave SW, Rochester, MN 55905, USA. huprich@mayo.edu

|January 30, 2008

Summary

This summary is machine-generated.

Computed tomographic (CT) enterography effectively identifies bleeding sources in obscure gastrointestinal bleeding (OGIB). This imaging technique aids in detecting lesions missed by capsule endoscopy, improving diagnostic accuracy for OGIB.

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Area of Science:

Radiology
Gastroenterology

Background:

Obscure gastrointestinal bleeding (OGIB) presents a diagnostic challenge.
Conventional endoscopic methods may not always identify the bleeding source.

Purpose of the Study:

To retrospectively evaluate computed tomographic (CT) enterography for diagnosing OGIB.
To assess the utility of a 64-section CT system with neutral enteric contrast and three-phase acquisition.

Main Methods:

Retrospective analysis of 22 patients with OGIB who underwent CT enterography.
Comparison of CT enterography findings with capsule endoscopy, traditional endoscopy, surgery, and angiography.
Utilized a 64-section CT system with neutral enteric contrast and a three-phase acquisition protocol.

Main Results:

CT enterography identified a bleeding source in 10 out of 22 patients (45%).
Eight of these positive findings correlated with capsule endoscopy or clinical diagnosis.
CT enterography detected three lesions missed by capsule endoscopy.

Conclusions:

Multiphase, multiplanar CT enterography shows promise in evaluating OGIB.
CT enterography can be a valuable tool for identifying gastrointestinal bleeding sources.
This technique may improve diagnostic yield in challenging OGIB cases.