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使用前列腺特异性抗原测试和磁共振成像进行重复前列腺癌查:STHLM3-MRI随机临床试验的二次分析
Tobias Nordström1,2, Magnus Annerstedt3, Axel Glaessgen4
1Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.
JAMA network open
|February 7, 2024
概括
使用PSA和MRI重复前列腺癌查检测到有限的癌症,低度瘤仍然很少见. 许多男性的PSA水平升高,但MRI扫描通常没有显示任何可疑的病变,这表明需要优化MRI使用.
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:
- 前列腺癌查旨在改善结果,但对重复查的最佳策略尚不清楚.
- 磁共振成像 (MRI) 正在探索,以提高前列腺癌查的益处与危害比率.
- 基于MRI的重复前列腺特异性抗原 (PSA) 查结果的数据有限.
研究的目的:
- 用PSA测试与MRI和前列腺活检相结合,评估重复前列腺癌查的结果.
- 在重复查环境中评估临床显著和不显著前列腺癌的检测率.
主要方法:
- 对STHLM3-MRI随机临床试验的二次分析,该试验涉及50-74岁的男性.
- 重复查包括PSA检测,用双参数MRI检测PSA水平≥3 ng/mL.
- 对前列腺成像报告和数据系统 (PI-RADS) 分数为3或以上的病变进行了活检.
主要成果:
- 在1500名重新查的男性中,48名 (3.2%) 被诊断出患有临床显著的前列腺癌 (格里森得分≥3+4).
- 在11名男性 (0.7%) 中检测到低度瘤 (格里森得分6).
- 高PSA水平 (≥3 ng/mL) 是常见的 (44.5%),但MRI显示可疑病变 (PI-RADS ≥4) 只有4.9%的扫描.
结论:
- 基于PSA和MRI的两年一次前列腺癌查表明,在第二轮检测中,癌症的检测有限.
- 低度瘤的检测率很低,许多MRI扫描没有发现重大病变.
- 在重复查中减少与MRI相关的资源利用的策略需要进一步调查.
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