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- W2348346476 abstract "Objective To discuss the sensitivity, specificity and accuracy of MRI in evaluating the invasion of pancreatic carcinoma to surrounding vessels, and further evaluate the optimal scanning sequences.Materials and Methods 22 cases of pancreatic carcinomas verified with surgical pathology were collected, MRI sequences such as SE T_1WI, FSE T_2WI, FSE T_1W+FS and dynamic contrast enhanced GRE triphase scans were performed. The invasion of peripancreatic vessels were retrospectively analyzed: (1)According to the degree of invasion, grading method as 0-3 grades was employed for blinded scoring, the numbers of vessels invasion and non-invasion were calculated, and compared with the surgical-pathology results, the accuracy of each grade for vessels invasion were analyzed. (2) The sensitivity, specificity, positive predictive value, negative predictive value and accuracy for SE T_1WI and DCE FMPSPGR were also calculated respectively.Results Totally, 154 vessels of 22 cases were involved, 51 vessels were invasive and 103 vessels were non-invasive. 45 vessels were invasive, 109 vessels were non-invasive and 6 vessels were misdiagnosed by SE T_1W. 43 vessels were invasive, 111 vessels were non-invasive and 2 vessels were misdiagnosed by DCE FMPSPGR. The sensitivity, specificity, positive predictive value, negative predictive value and accuracy of SE T_1WI and DCE FMPSPGR and SE T_1WI+DCE FMPSPGR for vessels invasion were: 88.2%, 97.0%, 93.8%, 94.3%, 94.2%; 84.3%, 98.0%, 95.5%, 92.7%, 93.5%; 92.1%, 98.0%, 95.9%, 96.2%, 96.1% respectively.Conclusion The sensitivity, specificity and accuracy of MRI for peripancreatic vessels invasion were 92.1%, 98.0% and 96.1% respectively. SE T_1W and DCE FMPSPGR sequence are better for detection of peripancreatic vessels invasion, combined with SE T_1W and DCE FMPSPGR sequence could improve the accuracy of diagnosis." @default.
- W2348346476 created "2016-06-24" @default.
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- W2348346476 date "2005-01-01" @default.
- W2348346476 modified "2023-09-23" @default.
- W2348346476 title "Pancreatic Carcinoma Invasion to Peripancreatic Vessels: Evaluation the Resectability with MRI" @default.
- W2348346476 hasPublicationYear "2005" @default.
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