基于PIRADSv2应用DTIFA参数诊断外周带前列腺癌

Peripheral Prostate Cancer Diagnosed by DTI Based on PI-RADS v2
CHEN Zhi-qiang*1, JI Guang-hai2, ZHENG Yi2, Zhao Ying-ying2, LI Peng1, CAI Lei1
[Abstract ] Purpose: To explore the diagnostic values of diffusion tensor imaging (DTI) and diffusion weighted imaging (DWI) based on prostate imaging reporting and data system version 2 (PI-RADS v2) in peripheral prostate cancer (PCa). Methods: Thirty cases of prostatic peripheral zone cancer (malignant group) and 48 cases of benign prostate hyperplasia (BPH) and/or chronic prostatitis (CP) (benignant group) were enrolied. They were undergone conventional MRI, diffusion-weighted Imaging (DWI) and diffusion tensor imaging (DTI), and were all proven with biopsy results. The images of DTI and FA were evaluated by the criteria reference to that of DWI in PI-RADS v2. Receiver operating characteristic (ROC) curves were used to compare the diagnostic efficiency with T2WI, DWI, DTI, DCE-MRI and DWI+DCE-MRI, DTI+DCE-MRI based on PI-RADS v2. Results: The receiver operating characteristic curve (ROC) were drawn, and then the areas under the curve (AUC) were obtained. The AUC of T2WI, DWI, DTI, DCE-MRI and DW1+DCE-MRI, DTI+DCE-MRI were 0.849, 0.867, 0.845, 0.758 ,0.884, 0.851; 95%CI were 0.7500.920, 0.771-0.933, 0.745-0.917, 0.648-0.848, 0.792-0.946, 0.752-0.922, respectively. Conclusion: Both DWI and
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腹部影像学 ABDOMINAL IMAGING
基于PI-RADS v2应用DTI-FA参数
诊断外周带前列腺癌陈志来自I姬广海$郑义2赵莹莹$李鹏'蔡磊」
【摘要】目的：探讨基于第2版前列腺影像报告与数据系统（PI-RADS v2）的扩散张量成像（DTI）与扩 散加权成像（DWI）对外周带前列腺癌（PCa）的诊断价值比较。方法：回顾性分析行常规MRI、DWI, DTI及DCE-MRI扫描，后经穿刺病理证实的30例外周带PCa患者（恶性组），48例良性前列腺增生
教育部’春晖计划’合作科研项目（Z2012002） 于夏医科大学国内•流建设学科临床快学资助项目（NXYIJCK2O17AO5）
Chin Comput Med Imag, 2019, 25： 42-47 1 Department of Radiology, General Hospital of Ningxia Medical University 2 Clinical medicine school of Ningxia Medical University Address: 804 Shenglinan St., Yingchuan 750004,P.R.C.
中国医学计算机成像杂志,2019, 25: 42-47 作者单位：1宁夏医科大学总医院放射科
2宁夏医科大学临床医学院 通信地址：宁夏银川市宁夏医科大学总医院放射科，银川750004 通信作者：蔡磊（电子邮箱：dcnkeywv@） 基金项目：宁夏自然科学基金（NZ13280; NZ1234）；
（BPH）和/或慢性前列腺炎（CP）患者（良性组）影像学资料，参照PI-RADS v2中DWI评分标准 对DTI及FA图评分，采用ROC曲线下面积（AUC）值比较T2WI、DWI、DTI、DCE-MRI及基于PI— RADS v2 的 DWI+DCE—MRI、DTI+DCE—MRI 诊断外周带 PCa 的诊断效能。结果：T2WI、DWI、DTI、 DCE-MRI. DWI+DCE—MRI、DTI+DCE-MRI 诊断外周带 PCa 的 AUC 分别为 0.849、0.867、0.845、 0.758、0.884、0.851, 95% CI 分别为 0.750 ~ 0.920、0.771 〜0.933、0.745 〜0.917、0.648 ~ 0.848、 0.792〜0.946、0.752〜0.922。结论：DWI、DTI对外周带PCa的诊断都具有较高效能，基于PI-RADS v2的DWI+DCE-MRI较DTI+DCE-MRI对外周带PCa的诊断效能更高。 【关键词】磁共振成像；扩散张量成像；前列腺影像报告与数据系统；前列腺肿瘤 中图分类号：R445.2 文献标志码：A 文章编号：1006-5741 （ 2019 ） -01-0042-06