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临床研究||Clinical Articles 磁共振成像 2024年7月第15卷第7期 Chin J Magn Reson Imaging, Jul, 2024, Vol. 15, No. 7
基于PI-RADS V2.1评估DCE-MRI定量值对外周带
前列腺癌和局灶性慢性前列腺炎的鉴别价值
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蔡二朋 ,左宗叶 ,汤凯 ,张林杰 ,邱俊 ,高俊 ,王颜 ,秦海波 5
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作者单位 1. 芜湖市第二人民医院影像科,芜湖 241001;2. 蚌埠医科大学,蚌埠 233000;3. 中国科学技术大学附属第一医院影像
科,合肥 230001;4.芜湖市第二人民医院病理科,芜湖 241001;5.芜湖市第二人民医院泌尿外科,芜湖 241001
* 通信作者 张林杰,E-mail: 25976980@qq.com
中图分类号 R445.2;R737.25 文献标识码 A DOI 10.12015/issn.1674-8034.2024.07.021
本文引用格式 蔡二朋, 左宗叶, 汤凯, 等 . 基于 PI-RADS V2.1评估 DCE-MRI定量值对外周带前列腺癌和局灶性慢性前列腺炎的
鉴别价值[J]. 磁共振成像, 2024, 15(7): 124-129, 178.
[摘要] 目的 探讨基于前列腺影像报告和数据系统(prostate imaging reporting and data system, PI-RADS)V2.1 版的动态对比
增强磁共振成像(dynamic contrast enhanced magnetic resonance imaging, DCE-MRI)定量值对外周带前列腺癌(prostate cancer,
PCa)和局灶性慢性前列腺炎(chronic prostatitis, CP)的鉴别价值。材料与方法 回顾性分析 2022 年 1 月至 2023 年 4 月期间芜
湖市第二人民医院收治的 57例外周带 PCa患者(研究组)和 21例局灶性 CP患者(对照组),所有患者接受 T2WI、扩散加权成
像 (diffusion weighted imaging, DWI)、DCE-MRI 检查,比较两组双参数 (bi-parameter, bp) -MRI (T2WI+DWI)、多参数
(multi-parameter, mp)-MRI(T2WI+DWI+DCE-MRI)扫描方案的 PI-RADS V2.1评分、DCE-MRI扫描定量值,采用受试者工作
特征(receiver operating characteristic, ROC)曲线评估各诊断方案对外周带 PCa的诊断价值。结果 研究组 bp-MRI、mp-MRI扫
描方案 PI-RADS V2.1 评分分别为(4.12±0.88)、(4.31±0.70)分,分别高于对照组的(2.42±1.14)、(2.52±1.22)分,P<0.05。
研究组 DCE-MRI 定量值容积转运常数 (volume transport constant, K trans )、速率常数 (rate constant, K ) 均高于对照组 (P<
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0.001),两组血管外细胞外间隙容积分数(extravascular extracellular volume fraction, V)比较差异无统计学意义(P>0.05)。
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ROC 分析显示,bp-MRI、mp-MRI、K trans 、K 诊断外周带 PCa 的 ROC 曲线下面积(area under the curve, AUC)[95% 置信区间
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(confidence interval, CI)] 分 别 为 0.780 (0.672~0.866)、 0.857 (0.759~0.926)、 0.734 (0.622~0.828)、 0.818 (0.716~0.896),
mp-MRI 诊断效能较 bp-MRI 稍高(P<0.05),其余各项比较差异无统计学意义(P>0.05)。采用 logit(p)法建立 ROC 拟合诊断
模型,结果显示 K +K trans 、mp-MRI+K trans 、mp-MRI+K 对外周带 PCa 诊断效能差异均无统计学意义(P>0.05);K +K trans 的诊断
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效 能 与 bp-MRI、 mp-MRI、 K trans 、 K 比 较 差 异 均 无 统 计 学 意 义 (P>0.05); mp-MRI+K trans 的 诊 断 效 能 分 别 高 于 bp-MRI、
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mp-MRI、K 、K trans (P<0.05);mp-MRI+K 的诊断效能分别高于 bp-MRI、K trans (P<0.05)。结论 基于 PI-RADS V2.1 mp-MRI、
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bp-MRI与 DCE-MRI定量值 K trans 、K 对外周带 PCa与局灶性 CP的鉴别诊断效能相当,且两定量参数联合,或分别与 mp-MRI联
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合能有效提高诊断效能,能够为临床不同适应症患者的诊断提供更多选择。
[关键词] 外周带前列腺癌;局灶性慢性前列腺炎;动态对比增强磁共振成像;磁共振成像;转运常数;速率常数
Differentiation between peripheral zone prostate cancer and focal chronic prostatitis based on
PI-RADS V2.1 assessment of quantitative DCE-MRI values
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CAI Erpeng , ZUO Zongye , TANG Kai , ZHANG Linjie , QIU Jun , GAO Jun , WANG Yan , QIN Haibo 5
1 Department of Radiology, the Second Peoples Hospital of Wuhu, Wuhu 241001, China; Bengbu Medical University, Bengbu 233000,
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China; Department of Radiology, the First Affiliated Hospital of the University of Science and Technology of China, Hefei 230001,
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China; Department of Pathology, the Second Peoples Hospital of Wuhu, Wuhu 241001, China; Department of Urology, the Second
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Peoples Hospital of Wuhu, Wuhu 241000, China
* Correspondence to ZHANG L J, E-mail: 25976980@qq.com
Received 11 Mar 2024, Accepted 26 Jun 2024; DOI 10.12015/issn.1674-8034.2024.07.021
ACKNOWLEDGMENTS The Chinese Red Cross Foundation's "Medical Empowerment-Leading Elite Research Project" (No.
XM-LHJY2022_05_16).
Cite this article as CAI E P, ZUO Z Y, TANG K, et al. Differentiation between peripheral zone prostate cancer and focal chronic prostatitis
based on PI-RADS V2.1 assessment of quantitative DCE-MRI values[J]. Chin J Magn Reson Imaging, 2024, 15(7): 124-129, 178.
Abstract Objective: To investigate the differential value of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI)
quantitative values based on the Prostate Imaging Reporting and Data System (PI-RADS) version V2.1 between peripheral zone prostate
cancer (PCa) and focal chronic prostatitis (CP). Materials and Methods: We reviewed 57 patients with peripheral zone PCa (study
group) and 21 patients with CP (control group) admitted to the Second Peoples Hospital of Wuhu between January 2022 and April 2023,
and all patients underwent T2WI, diffusion weighted imaging (DWI), and DCE-MRI. The PI-RADS V2.1 scores, quantitative values of
DCE-MRI scans, were compared between the two groups for the bi-parameter (bp)-MRI (T2WI+DWI) and multi-parameter (mp)-MRI
(T2WI+DWI+DCE-MRI) scanning protocols. The diagnostic value of each diagnostic protocol for peripheral zone PCa was assessed
using receiver operating characteristic (ROC) curves. Results: The PI-RADS V2.1 scores of the bp-MRI and mp-MRI scan protocols in
the study group were (4.12±0.88) and (4.31±0.70), respectively, which were higher than those of the control group (2.42±1.14) and (2.52±
1.22), respectively (P<0.05). The volume transport constant (K trans ) and rate constant (K ) of DCE-MRI quantitative values in the study
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group were higher than those in the control group (P<0.001). There was no statistical difference between the two groups in terms of
extravascular extracellular volume fraction (V) (P>0.05). ROC analysis showed that the AUC (95% CI) for bp-MRI, mp-MRI, K trans and
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收稿日期 2024-03-11 接受日期 2024-06-26
基金项目 中国红十字基金会“医学赋能-领航菁英科研项目”(编号:XM_LHJY2022_05_16)
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