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Acute GI Bleeding: Sensitivity and Specificity

Introduction: Acute gastrointestinal bleeding, lumping lower and upper together here. See also Upper GI Bleed.

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Tags: Gastrointestinal Problem Tag this Diagnosis.

The sensitivity and specificity of findings for Acute GI Bleeding are listed below. See the left navigation bar to change the display.

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Finding SensitivitySpecificity Comments, Study
Angiography
Duplicate Edit
40%100%

for lower GI bleeding. sensitivity 40-86%

Study: Radiographics. 2007 Jul-Aug;27(4):1055-70. PMID: 17620467

Angiography
Duplicate Edit
63%100%

for upper GI bleeding. sensitivity 63-90%

Study: Radiographics. 2007 Jul-Aug;27(4):1055-70. PMID: 17620467

CT angiography Edit 89%85%

In animal models, sensitivity down to .3 ml/min

Study: World J Gastroenterol. 2010 Aug 21;16(31):3957-63. PMID: 20712058

Tagged RBC Scan Edit 93%95%

In animal models, sensitivity down to .04 - .1 ml/min flow. However, data suggests at least 22% mislocalization rate.

Study: Radiographics. 2007 Jul-Aug;27(4):1055-70. PMID: 17620467

World J Gastroenterol. 2010 Aug 21;16(31):3957-63. PMID: 20712058

Upper Endoscopy Edit 92%30%

sensitivity 92-98%, specificity 30-100%

Study: Radiographics. 2007 Jul-Aug;27(4):1055-70. PMID: 17620467