在中等风险前列腺癌中,淋巴结分期的诊断准确性和结果
Christopher Kniep1, Tobias Maurer1,2, Ben Frederik Hartwieg1
1Martini-Klinik Prostate Cancer Centre, University Hospital Hamburg Eppendorf, Hamburg, Germany.
BJU international
|January 23, 2026
概括
在手术前进行中等风险前列腺癌的分期成像,对于检测淋巴结入侵的准确性有限. 前列腺特异性膜抗原-质子发射断层扫描 (PSMA-PET) 显示了适度的价值,但可能不经常需要.
科学领域:
- 泌尿器科 泌尿器科 泌尿器科 泌尿器科
- 在瘤学瘤学.
- 放射学 放射学是一门学科.
背景情况:
- 中期风险前列腺癌 (PCa) 需要准确的分期来指导治疗决策.
- 盆腔淋巴结解剖 (PLND) 是激进前列腺切除术 (RP) 的关键组成部分,用于分期.
- 评估淋巴结入侵 (LNI) 的成像方法的诊断性能至关重要.
研究的目的:
- 评估计算机断层扫描 (CT),磁共振成像 (MRI) 和前列腺特异性膜抗原-质子发射断层扫描 (PSMA-PET) 的诊断准确性,用于中等风险PCa中的LNI.
- 为了将分期模式的表现与RP和PLND后的瘤结果相关联.
主要方法:
- 对8043名中等风险PCa患者进行RP和PLND (2015-2021) 的回顾性分析.
- 排除接受新辅助激素治疗的患者.
- 评估CT,MRI和PSMA-PET用于LNI检测和Kaplan-Meier分析以求无复发和无转移的生存.
主要成果:
- 共有624名患者 (7.8%) 患有LNI.
- 对于PSMA-PET的灵敏度为13%,MRI为8.3%,CT为0.9%.
- 阴性预测值为MRI的92.5%,PSMA-PET的89.5%,CT的89%. 阴性PSMA-PET患者的生存率更好.
结论:
- 传统的成像 (CT,MRI) 和PSMA-PET显示在中等风险的PCa中检测LNI的灵敏度有限.
- 由于表现不佳,这些模式的常规使用可能会被遗漏.
- 由于敏感度和预后价值有限,PSMA-PET具有有限但潜在的选择性作用.
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