Chronic cholecystitis CT: Difference between revisions
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==CT Scan== | ==CT Scan== | ||
* CT scan is more specific than ultrasound. | * CT scan is more specific than ultrasound. | ||
* CT scan findings include | * CT scan findings include<ref name="pmid8615248">{{cite journal |author=Fidler J, Paulson EK, Layfield L |title=CT evaluation of acute cholecystitis: findings and usefulness in diagnosis |journal=[[AJR. American Journal of Roentgenology]] |volume=166 |issue=5 |pages=1085–8 |year=1996 |month=May |pmid=8615248 |doi= |url=http://www.ajronline.org/cgi/pmidlookup?view=long&pmid=8615248 |accessdate=2012-08-20}}</ref> | ||
** Gall bladder wall thickening | |||
** Gall bladder distension | ** Gall bladder distension | ||
** Pericholecystic fat density | ** Pericholecystic fat density | ||
** Pericholecystic fluid collection | ** Pericholecystic fluid collection | ||
** Subserosal edema | ** Subserosal edema | ||
** High attenuation gallbladder bile | ** High attenuation gallbladder bile | ||
* CT cannot see noncalcified gallbladder calculi, and cannot assess for a Murphy's sign. <ref name="Shea">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.</ref> <ref name="Fink">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.</ref> | |||
CT cannot see noncalcified gallbladder calculi, and cannot assess for a Murphy's sign. <ref name="Shea">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.</ref> <ref name="Fink">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.</ref> | |||
'''Patient #1: CT demonstrates findings that are consistent with acute cholecystitis (gallstone in GB neck, perichol fluid, GB wall thickening)''' | '''Patient #1: CT demonstrates findings that are consistent with acute cholecystitis (gallstone in GB neck, perichol fluid, GB wall thickening)''' | ||
Revision as of 23:06, 20 August 2012
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
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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 Scan
- 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]
Patient #1: CT demonstrates findings that are consistent with acute cholecystitis (gallstone in GB neck, perichol 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.