The value of drip infusion cholangiography using multidetector-row helical CT in patients with choledocholithiasis

Masahiro Okada, Jun Ichi Fukada, Kazuhito Toya, Reiko Ito, Toshio Ohashi, Atsunori Yorozu

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

The purposes of this study were to investigate the feasibility of drip infusion cholangiography computed tomography (CTCh) for choledocholithiasis and to compare the detection of the stone on CTCh with that of MR cholangiopancreatography (MRCP). CTCh examinations were performed after infusion of intravenous biliary contrast material (iotroxic acid meglumine, 100 ml) for patients with suspected biliary diseases and were reconstructed to maximum intensity projection (MIP) and multiplanar reformation (MPR). Of 432 patients who underwent CTCh, we identified 15 who underwent surgery or cholangioscopic removal for choledocholithiasis and 32 patients who underwent cholecystectomy due to cholecystolithiasis. Their MRCP images were compared with the CTCh images. The sensitivity and specificity of CTCh for detecting choledochal stones were 87% and 96% whereas those of MRCP were 80% and 88%. The sensitivity and specificity of CTCh for detecting gallstones were 78% and 100% whereas those of MRCP were 94% and 88%. CTCh allowed high sensitivity and specificity for detecting choledochal stones but diminished the detection for cholecystolithiasis compared with MRCP.

Original languageEnglish
Pages (from-to)2140-2145
Number of pages6
JournalEuropean radiology
Volume15
Issue number10
DOIs
Publication statusPublished - 2005 Oct 1

Keywords

  • CT cholangiography
  • Choledocholithiasis
  • MR cholangiopancreatography (MRCP)
  • Maximum intensity projection (MIP)
  • Multiplanar reformation (MPR)

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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