Litiasi della via biliare principale: Ruolo della colangiografia con Risonanza Magnetica

Translated title of the contribution: Choledocholithiasis: The role of Magnetic Resonance Cholangiography

Paolo Pavone, Andrea Laghi, Carlo Catalano, Laura Broglia, Valeria Panebianco, Antonella Messina, Marco Di Girolamo, Roberto Passariello

Research output: Contribution to journalArticlepeer-review


The aim of our study was to evaluate the sensitivity, specificity and diagnostic accuracy of Magnetic Resonance Cholangiography (MRCP) in patients with suspected choledocholithiasis. Sixty-two patients (mean age: 56.3 years) previously submitted to US, were examined with MRCP. MR exams were performed with an 0.5T superconductive magnet (Gyroscan T5-II; Philips, Medical System, Best, NL) and a body coil. 3D-TSE sequences (TR/TE/ETL = 5.000/244/45 ms) were acquired, with 14 min 10 sec acquisition time. In the last 21 patients, acquisition time was reduced down to 3 min, by optimizing the parameters as follows: TR/TE/ETL = 3.000/700/128 ms. The images, obtained on the coronal plane, were then reconstructed with the MIP algorithm. MRCP images were studied both as MIP reconstructions and as single slices. The diagnosis was always compared with endoscopic or percutaneous findings. MRCP images were of diagnostic quality in all cases, with 91.7% sensitivity, 100% specificity and 96.8% diagnostic accuracy. MRCP had 100% positive predictive value and 95% negative predictive value. In conclusion, this technique is extremely useful to examine the patients with obstructive jaundice secondary to lithiasis.

Translated title of the contributionCholedocholithiasis: The role of Magnetic Resonance Cholangiography
Original languageItalian
Pages (from-to)420-423
Number of pages4
JournalRadiologia Medica
Issue number4
Publication statusPublished - Apr 1996

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging


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