Chronic cholecystitis CT: Difference between revisions
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Revision as of 18:27, 4 September 2012
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Aditya Govindavarjhulla, M.B.B.S. [2]
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Chronic cholecystitis Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Chronic cholecystitis CT On the Web |
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American Roentgen Ray Society Images of Chronic cholecystitis CT |
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Risk calculators and risk factors for Chronic cholecystitis CT |
Overview
The reported sensitivity and specificity of CT scan findings are in the range of 90-95%. CT is more sensitive than ultrasonography in the depiction of pericholecystic inflammatory response and in localizing pericholecystic abscesses, pericholecystic gas, and calculi outside the lumen of the gallbladder.
CT
- CT scan is more specific than ultrasound.
- CT scan findings include[1]
- Gall bladder wall thickening
- Gall bladder distension
- Pericholecystic fat density
- Pericholecystic fluid collection
- Subserosal edema
- High attenuation gallbladder bile
- CT cannot see noncalcified gallbladder calculi, and cannot assess for a Murphy's sign. [2] [3]
Images
CT demonstrates findings that are consistent with acute cholecystitis (gallstone in GB neck, pericholicystic fluid, GB wall thickening)
References
- ↑ Fidler J, Paulson EK, Layfield L (1996). "CT evaluation of acute cholecystitis: findings and usefulness in diagnosis". AJR. American Journal of Roentgenology. 166 (5): 1085–8. PMID 8615248. Retrieved 2012-08-20. Unknown parameter
|month=ignored (help) - ↑ Shea, JA, Berlin, JA, Escarce, JJ, et al. Revised estimates of diagnostic test sensitivity and specificity in suspected biliary tract disease. Arch Intern Med 1994; 154:2573.
- ↑ Fink-Bennett, D, Freitas, JE, Ripley, SD, Bree, RL. The sensitivity of hepatobiliary imaging and real time ultrasonography in the detection of acute cholecystitis. Arch Surg 1985; 120:904.