Value of DWI on differentially diagnosing malignant and benign mucinous cystic neoplasms of pancreas
10.12025/j.issn.1008-6358.2018.20170863
- VernacularTitle:扩散加权成像对胰腺黏液性囊性肿瘤良恶性的鉴别诊断价值
- Author:
Shu-Jie ZHANG
1
;
Sheng-Xiang RAO
;
Meng-Su ZENG
;
Wei-Bin SHI
Author Information
1. 复旦大学附属中山医院放射科
- Keywords:
diffusion weighted imaging;
apparent diffusion coefficient;
pancreatic neoplasms
- From:
Chinese Journal of Clinical Medicine
2018;25(1):48-51
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the value of diffusion weighted imaging (DWI) on differentially diagnosing malignant and benign mucinous cystic neoplasms of pancreas.Methods:Forty-five patients with pancreatic mucinous cystic neoplasms who underwent DWI were included retrospectively.The apparent diffusion coefficient (ADC) values of tumor were measured and the ADCmean,ADCmin,and ADCmax were compared between malignant and benign tumors.Receiver operator characteristics (ROC) analysis was further performed for evaluating diagnostic performance.Results:The ADCmeanof benign pancreatic mucinous cystic neoplasms(n=27)was significantly higher than that of malignant neoplasms (n=18;3.34× 10-3 mm2/s vs 2.36× 10-3 mm2/s,P＜0.000 1),with area under the ROC curve (AUC) of 0.91.The ADCmin of malignant pancreatic mucinous cystic neoplasms was also significantly lower than that of benign neoplasms (1.24 × 10-3 mm2/s vs 2.54×10 3 mm2/s,P＜0.000 1),with AUC of 0.94.While no significant difference of ADCmax was found between benign and malignant neoplasms (3.71 × 10 3 mm2/s us 3.86 × 10-3 mm2/s).Conclusions:ADCmean and ADCmin are useful fordifferentially diagnosing malignant and benign mucinous cystic neoplasms of pancreas in DWI.
