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RUQ UltrasoundAka: Gallbladder Ultrasound

Efficacy in Cholelithiasis
1. Test Sensitivity for Gallstones: 95%
2. Test Specificity high
3. Can visualize Gallstones >= 2 mm
Evaluation of Cholecystitis
1. Findings suggestive of Cholecystitis
  1. Presence of Gallstones
  2. Thickened gallbladder wall
  3. Gallbladder distension
  4. Pericholecystic fluid
  5. Positive sonographic Murphy Sign
2. Interpretation: Above findings present
  1. Cholecystitis Positive Predictive Value (PPV) 90%
3. Interpretation: Above findings absent
  1. Cholecystitis unlikely

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This page was written by Scott Moses, MD. This page was last revised before 5/10/08, prior to consistent tracking of revision date. This page was last published on 5/10/2008. Please send comments and questions to the editor. Contact information may be found on the page About the Family Practice Notebook. These pages are best viewed with Microsoft Internet Explorer 6.0.