La colangiopancreatografia con Risonanza Magnetica nella valutazione del dotto pancreatico

Translated title of the contribution: MR cholangiopancreatography in pancreatic duct studies

Paolo Pavone, Valeria Panebianco, Andrea Laghi, Carlo Catalano, Antonella Messina, Leonarda Lobina, Silvana Pirillo, Roberto Passariello

Research output: Contribution to journalArticle

Abstract

We investigated MR cholangiopancreatography (MRCP) findings in patients with pancreatic conditions, which are mainly diagnosed based on US and CT morphologic findings. Sixty-three patients were submitted to MRCP using a .5T magnet. MRCP was performed with non-breath-hold fat-suppressed 3D turbo spin echo sequences (TR = 3000 ms, TE = 700 ms, ETL = 128, NEX = 6) with 3 min acquisition time. For better depiction of Wirsung duct and secondary ducts in the last 11 patients, a high resolution technique with a 128 x 256 matrix, 8 NEX and 8 min 36 s acquisition time was developed. MRCP images were studied both on MTP reconstructions and on single slices as well as T1- and T2-weighted TSE axial images. The diagnosis was compared with endoscopy, percutaneous procedure or CT findings in all cases. A hypointense focal mass was observed on T1-weighted TSE images in 39 pancreatic carcinoma patients (100%) and parenchymal atrophy was shown in 13 patients (33%); a sudden obstruction of the Wirsung duct was observed in 16 cases (41%) with homogeneous dilatation in 11 cases (28%). A tapered appearance of the distal Wirsung duct was demonstrated in 19 chronic pancreatitis patients, with diffuse patchy signal changes in 12 patients (63%); bead-like appearance of the Wirsung duct was shown in 6 cases (32%) and pseudocysts in 7 cases (37.3%). MRCP is the only imaging method demonstrating pancreatic conditions between carcinoma and pancreatitis, similarly to ERCP.

Translated title of the contributionMR cholangiopancreatography in pancreatic duct studies
Original languageItalian
Pages (from-to)61-67
Number of pages7
JournalRadiologia Medica
Volume94
Issue number1-2
Publication statusPublished - Jul 1997

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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    Pavone, P., Panebianco, V., Laghi, A., Catalano, C., Messina, A., Lobina, L., Pirillo, S., & Passariello, R. (1997). La colangiopancreatografia con Risonanza Magnetica nella valutazione del dotto pancreatico. Radiologia Medica, 94(1-2), 61-67.