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SMALL PANCREATIC ADENOCARCINOMAS - EFFICACY OF MR-IMAGING WITH FAT-SUPPRESSION AND GADOLINIUM ENHANCEMENT
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DOI：10.1148/radiology.193.3.7972808.png)
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Abstract
En 中文
PURPOSE: To compare the efficacy of fat-suppressed T1-weighted magnetic resonance (MR) imaging and dynamic MR imaging in the diagnosis of small pancreatic adenocarcinomas. MATERIALS AND METHODS: Pancreatic adenocarcinomas in 15 patients were evaluated with dynamic computed tomography (CT) and five MR imaging sequences that included fat-suppressed T1-weighted technique and dynamic multiplanar gradient-recalled acquisition in the steady state technique. RESULTS: The difference in contrast-to-noise ratios between tumor and normal pancreas was significantly different (P < .05) between the five MR imaging sequences used. In six patients, the combination of dynamic MR imaging and fat-suppressed imaging was superior to dynamic CT in the detection of tumors. Tumors accompanied by chronic pancreatitis were less distinct on fat-suppressed images but were clearly visible on dynamic MR images. Peripancreatic extension of tumors was better recognized on T1-weighted images and CT scans than on fat-suppressed images. CONCLUSION: Fat-suppressed T1-weighted images and dynamic MR images were useful in the detection of pancreatic carcinomas. T1-weighted images and CT scans were superior in the evaluation of tumor extension.
Keywords:
PANCREAS
PANCREAS, MR
PANCREAS, NEOPLASMS
PANCREATITIS
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