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超越PSMA:MRI在低PSMA表达表现型的前列腺癌阶段化中的重要补充作用

Ruohua Chen^1,2, Yining Wang², Liang Dong³

¹Department of Nuclear Medicine, Jiading District Central Hospital Affiliated Shanghai University of Medicine &Health Sciences, Shanghai, China.

European journal of nuclear medicine and molecular imaging

|October 19, 2025

概括

多参数核磁共振扫描 (mpMRI) 显著改善了前列腺癌检测在患者负面的PSMA PET/CT扫描. 这种成像技术对于PSA水平较低和格里森得分较低的人来说尤其有价值,有助于准确的分期.

科学领域:

在瘤学瘤学.
放射学放射学是一门学科.
医疗成像医学成像

背景情况:

前列腺特异性膜抗原 (PSMA) PET/CT对前列腺癌的分期非常敏感.
一部分患者呈现负面PSMA PET/CT结果,风险低诊断.
在这个特定的队列中,多参数MRI (mpMRI) 的诊断实用性尚未得到充分证实.

研究的目的:

评估mpMRI在前列腺癌患者的诊断附加值,这些患者的PSMA PET/CT检测结果为负.
确定患者特征,预测该子组mpMRI的益处.
改善前列腺癌的分期精度和临床决策.

主要方法:

对200名新诊断的前列腺癌患者进行了回顾性分析.
68Ga-PSMA-11 PET/CT和盆腔mpMRI发现的比较.
对PSMA-/MRI+患者与队列分析的临床病理学数据 (PSA,格里森评分).
后勤回归确定了PSMA-/MRI+状态的预测因素.

主要成果:

在18名负PSMAPET/CT患者中,有17名患者 (94.4%) 的mpMRI检测结果呈阳性.
在PSMA/MRI+患者中,PSA水平 (22.6比60.0 ng/mL) 和格里森评分 (中位数为7比7) 显著降低.
较低的PSA和格里森评分是PSMA-/MRI+状态的独立预测指标.
低PSA (<24.05 ng/mL) 和低格里森评分 (<7) 的患者的检测率最高 (37.5%).

结论:

mpMRI在PSMA PET/CT阴性时为前列腺癌检测提供了实质性的诊断附加值.
在低PSA和格里森分数的患者中,mpMRI的益处最为明显.
整合mpMRI可以防止低阶段和增强治疗决策在这个患者群体.

关键词:

多参数核磁共振成像负68 Ga-PSMA-11 皮特 (PET) 是一个在PSMA-/MRI+中使用.前列腺癌是什么意思前列腺癌是什么意思

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