The aim of our study was to evaluate the sensitivity, specificity and diagnostic accuracy of Magnetic Resonance Cholangiography (MR-CP) 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 0.5 T 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.

[Lithiasis of the common bile duct: the role of cholangiography and magnetic resonance] / P., Pavone; Laghi, Andrea; Catalano, Carlo; L., Broglia; Panebianco, Valeria; A., Messina; M., Di Girolamo; Passariello, Roberto. - In: LA RADIOLOGIA MEDICA. - ISSN 0033-8362. - STAMPA. - 91:4(1996), pp. 420-423.

[Lithiasis of the common bile duct: the role of cholangiography and magnetic resonance].

LAGHI, ANDREA;CATALANO, Carlo;PANEBIANCO, VALERIA;PASSARIELLO, Roberto
1996

Abstract

The aim of our study was to evaluate the sensitivity, specificity and diagnostic accuracy of Magnetic Resonance Cholangiography (MR-CP) 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 0.5 T 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.
1996
adult; aged; aged: 80 and over; cholangiography; common bile duct; female; gallstones; humans; magnetic resonance imaging; male; middle aged; sensitivity and specificity
01 Pubblicazione su rivista::01a Articolo in rivista
[Lithiasis of the common bile duct: the role of cholangiography and magnetic resonance] / P., Pavone; Laghi, Andrea; Catalano, Carlo; L., Broglia; Panebianco, Valeria; A., Messina; M., Di Girolamo; Passariello, Roberto. - In: LA RADIOLOGIA MEDICA. - ISSN 0033-8362. - STAMPA. - 91:4(1996), pp. 420-423.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/387096
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