Ascending cholangitis CT: Difference between revisions
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{{Ascending cholangitis}} | |||
{{CMG}}; {{AE}} {{AHS}} | |||
==Overview== | ==Overview== | ||
If other causes rather than gallstones are suspected (such as a [[tumor]]), [[computed tomography]] may be performed to identify the nature of the obstruction. | Ct scan can be used to detect the bile duct dilatation with diagnosis of possible causes of cholangitis. Unenhanced and contrast enhanced MDCT scan has moderate sensitivity and specificity for detection of bile duct stones<ref name="pmid16794173">{{cite journal| author=Anderson SW, Lucey BC, Varghese JC, Soto JA| title=Accuracy of MDCT in the diagnosis of choledocholithiasis. | journal=AJR Am J Roentgenol | year= 2006 | volume= 187 | issue= 1 | pages= 174-80 | pmid=16794173 | doi=10.2214/AJR.05.0459 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=16794173 }}</ref> | ||
==CT== | |||
If other causes rather than gallstones are suspected (such as a [[tumor]]), [[computed tomography]] may be performed to identify the nature of the obstruction. [[Computed tomography|CT scans]] have a higher [[Sensitivity (tests)|sensitivity]] (63%) and are accurate in locating the site of obstruction. The accuracy of conventional [[Computed tomography|CT scans]] in determining the presence and level of obstruction is between 81% and 94%<ref name="TseBarkun2006">{{cite journal|last1=Tse|first1=Frances|last2=Barkun|first2=Jeffrey S.|last3=Romagnuolo|first3=Joseph|last4=Friedman|first4=Gad|last5=Bornstein|first5=Jeffrey D.|last6=Barkun|first6=Alan N.|title=Nonoperative imaging techniques in suspected biliary tract obstruction|journal=HPB|volume=8|issue=6|year=2006|pages=409–425|issn=1365182X|doi=10.1080/13651820600746867}}</ref>. Findings on [[Computed tomography|CT scan]] suggestive of/diagnostic of acute cholangitis include non-homogeneous liver enhancement in arterial phase | |||
==References== | ==References== | ||
{{reflist|2}} | {{reflist|2}} | ||
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Latest revision as of 15:30, 1 October 2018
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Anila Hussain, MD [2]
Overview
Ct scan can be used to detect the bile duct dilatation with diagnosis of possible causes of cholangitis. Unenhanced and contrast enhanced MDCT scan has moderate sensitivity and specificity for detection of bile duct stones[1]
CT
If other causes rather than gallstones are suspected (such as a tumor), computed tomography may be performed to identify the nature of the obstruction. CT scans have a higher sensitivity (63%) and are accurate in locating the site of obstruction. The accuracy of conventional CT scans in determining the presence and level of obstruction is between 81% and 94%[2]. Findings on CT scan suggestive of/diagnostic of acute cholangitis include non-homogeneous liver enhancement in arterial phase
References
- ↑ Anderson SW, Lucey BC, Varghese JC, Soto JA (2006). "Accuracy of MDCT in the diagnosis of choledocholithiasis". AJR Am J Roentgenol. 187 (1): 174–80. doi:10.2214/AJR.05.0459. PMID 16794173.
- ↑ Tse, Frances; Barkun, Jeffrey S.; Romagnuolo, Joseph; Friedman, Gad; Bornstein, Jeffrey D.; Barkun, Alan N. (2006). "Nonoperative imaging techniques in suspected biliary tract obstruction". HPB. 8 (6): 409–425. doi:10.1080/13651820600746867. ISSN 1365-182X.