Acute GI Bleeding: Sensitivity and Specificity

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

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

Sensitive and Specific Findings

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

89%

85%

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

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

Specific Findings

63%

100%

for upper GI bleeding. sensitivity 63-90%

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

40%

100%

for lower GI bleeding. sensitivity 40-86%

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

Sensitive Findings

92%

30%

sensitivity 92-98%, specificity 30-100%

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