Document Detail

Endoscopic ultrasonography for diagnosing choledocholithiasis: a prospective comparative study with ultrasonography and computed tomography.
MedLine Citation:
PMID:  9040999     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: We assessed the diagnostic usefulness of endoscopic ultrasonography (EUS) for choledocholithiasis. METHODS: A prospective series of 155 patients with suspected choledocholithiasis all underwent EUS, conventional ultrasonography, CT, and ERCP. In 142 patients with a clear cholangiogram on ERCP, we analyzed the capability of EUS to image the extrahepatic bile duct and to identify choledocholithiasis, compared with ultrasonography and CT. RESULTS: No complications were encountered in performing EUS. In 51 patients, ERCP demonstrated bile duct stones, which were confirmed at endoscopic sphincterotomy or surgery. The extrahepatic bile duct was wholly displayed in 96% by EUS, in 60% by ultrasonography, and in 80% by CT. EUS (96%) was more sensitive than ultrasonography (63%) and CT (71%) for detecting choledocholithiasis (p < 0.001). Although ultrasonography and CT were poorly diagnostic for choledocholithiasis in patients with small stones or those with a nondilated common bile duct, EUS was able to accurately detect choledocholithiasis regardless of the size of stones or the diameter of the bile duct. The specificity of EUS (100%) was higher than those of ultrasonography (95%) and CT (97%). CONCLUSIONS: EUS, a safe imaging procedure, is more accurate than ultrasonography and CT and may be as accurate as ERCP for diagnosing choledocholithiasis.
M Sugiyama; Y Atomi
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Publication Detail:
Type:  Clinical Trial; Comparative Study; Journal Article    
Journal Detail:
Title:  Gastrointestinal endoscopy     Volume:  45     ISSN:  0016-5107     ISO Abbreviation:  Gastrointest. Endosc.     Publication Date:  1997 Feb 
Date Detail:
Created Date:  1997-05-15     Completed Date:  1997-05-15     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0010505     Medline TA:  Gastrointest Endosc     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  143-6     Citation Subset:  IM    
First Department of Surgery, Kyorin University School of Medicine, Tokyo, Japan.
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MeSH Terms
Aged, 80 and over
Cholangiopancreatography, Endoscopic Retrograde*
Diagnosis, Differential
Gallstones / diagnosis*
Middle Aged
Prospective Studies
Sensitivity and Specificity
Tomography, X-Ray Computed*

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