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Updated: Feb 14, 2026

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在正常 PSA (<4 ng/mL) 的男性中进行前列腺磁共振成像是否有意义?
Pieter De Visschere1,2, Camille Berquin2,3, Pieter De Backer2,3
1Department of Radiology and Nuclear Medicine, Ghent University Hospital, 9000 Ghent, Belgium.
Cancers
|February 13, 2026
概括
如果存在其他可疑因素,前列腺MRI可以检测正常PSA水平的男性有临床意义的前列腺癌 (csPC). 然而,MRI在这个群体中显示出较低的阳性预测值和高的假阳性率.
科学领域:
- 放射学 放射学是一门学科.
- 在瘤学瘤学.
- 泌尿器科 泌尿器科 泌尿器科 泌尿器科
背景情况:
- 正常的前列腺特异性抗原 (PSA) 水平并不总是排除临床显著的前列腺癌 (csPC).
- 前列腺MRI越来越多地用于前列腺癌的检测,但其在正常PSA的男性中的作用需要评估.
研究的目的:
- 评估磁共振成像 (MRI) 的性能和诊断相关性,以检测正常PSA水平 (<4 ng/mL) 的男性的csPC.
- 分析不同PSA亚组的MRI性能,并确定转诊的原因.
主要方法:
- 对PSA<4 ng/mL的148名男性进行了回顾性分析,转诊为前列腺MRI,基因病理学或2年随访作为参考标准.
- 使用前列腺成像和报告数据系统 (PI-RADS) 报告前列腺MRI;PI-RADS ≥3被认为是阳性的.
- 评价了国际泌尿病学学会 (ISUP) 检测≥2和≥3cpc等级组的性能.
主要成果:
- 总的来说,18.9%的男性有ISUP≥2 csPC,通过MRI检测到92.9%的灵敏度和39.4%的积极预测值 (PPV).
- 对于ISUP≥3csPC,MRI灵敏度为100%,但PPV为21.2%.
- 在PSA<2ng/mL的男性中,没有发现csPC,MRI在33.3%的病例中产生了假阳性.
结论:
- 前列腺MRI对于检测正常PSA的男性的CSPC有价值,如果其他临床怀疑因素存在.
- 虽然MRI显示出高灵敏度,但其低的PPV需要仔细解释,以避免不必要的程序.
- 在 PSA < 2 ng/mL 的男性中,MRI 的价值是有限的,原因是错误阳性率高,没有 csPC.
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