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Computed Tomography Signs for Active Severe Gastrointestinal Bleeding.

Gu-mu-yang Zhang1, Hao Sun1, Hua-dan Xue1

  • 1Department of Radiology,PUMC Hospital,CAMS and PUMC,Beijing 100730,China

Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
|July 30, 2016
PubMed
Summary
This summary is machine-generated.

Multi-detector CT angiography (CTA) reveals diverse signs for active severe gastrointestinal bleeding (GIB). Careful interpretation of findings like contrast extravasation and vascular malformations is crucial for diagnosis.

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Area of Science:

  • Radiology
  • Gastroenterology
  • Medical Imaging

Background:

  • Active severe gastrointestinal bleeding (GIB) is a critical medical condition requiring prompt diagnosis.
  • Multi-detector CT angiography (CTA) is a valuable imaging modality for evaluating GIB.
  • Identifying specific CT signs can aid in localizing and determining the cause of bleeding.

Purpose of the Study:

  • To summarize the positive imaging signs observed on multi-detector CT angiography (CTA) in patients with active severe gastrointestinal bleeding (GIB).
  • To correlate CTA findings with confirmed diagnoses of GIB.

Main Methods:

  • Retrospective evaluation of clinical records and CT images from 93 patients.
  • Patients had confirmed active severe GIB via digital subtraction angiography (DSA), endoscopy, or surgery.
  • Recorded positive CT signs indicating bleeding location and cause.

Main Results:

  • Intraluminal contrast extravasation was the most frequent sign (47.3%).
  • Other significant findings included vascular malformations (23.7%) and gastrointestinal tumors (19.4%).
  • Less common signs included abnormal bowel mucosal enhancement (7.5%) and diverticula with abnormal enhancement (2.2%).

Conclusions:

  • Positive CT signs for active severe GIB are varied.
  • Careful interpretation of diverse CTA findings is essential in clinical practice for accurate diagnosis and management of GIB.