Assessment of resectability of pancreatic cancer with multiphasic contrast-enhanced 3.0T MRI before surgery / 实用放射学杂志

ABSTRACT

Objective To study the value of multiphasic contrast-enhanced 3.0T MRI in the preoperative assessment of resectability in pancreatic cancer.Methods 38 patients with pancreatic cancer proved by operation and pathology were performed with multiphasic contrast-enhanced imaging at 3.0T MRI.The resectability of lesions was judged according to the status of vascular and adjacent organ involvement,lymphadenopathy and distant metastases on MRI images,which were compared with the results of operation.Results Of 38 pancreatic cancer,32 lesions located in the head,4 tumors in the body and 2 lesions in the tail of pancreas.MRI predicted that 1 9 tumors were resectable in which 1 7 lesions were successful resection,the accuracy of the positive predictive value for resectability was 89.5%.19 lesions were predicted to be unresectable by MRI,which were verified by surgery,the positive predictive value for un-resectability was 100%.The primary causes of unresectability contained peripancreatic main vessels involvement,liver metastasis, lymphadenopathy and peritoneal metastasis.Conclusion MRI multiphasic contrast-enhanced imaging has important value in preoper-ative resectability assessment of pancreatic cancer,which provides an useful reference for clinic to select appropriate treatment options.