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在PSA复发的男性中以PSMA PET/CT为导向的救援放射治疗
Maria Tamburo1, Emanuele Buffettino2, Pietro Pepe3
1Radiotherapy Unit, Cannizzaro Hospital, Catania, Italy; marinellatamburo@virgilio.it.
Anticancer research
|April 27, 2024
概括
以PSMA PET/CT为指导的救援放射治疗在一年内在近70%的复发前列腺癌男性中实现了局部控制. 这种方法使前列腺癌复发的早期治疗成为可能,即使PSA水平较低.
科学领域:
- 在瘤学瘤学.
- 核医学是一种核医学.
- 放射疗法是一种放射治疗.
背景情况:
- 复发性前列腺癌 (PCa) 是一个重大的临床挑战.
- 救援放射治疗 (sRT) 是PCa复发的治疗选择.
- 准确的分期对于有效的SRT规划至关重要.
研究的目的:
- 为了评估患有复发前列腺癌的男性用PSMA PET/CT引导的sRT治疗的临床结果.
- 根据PCa复发的位置和程度来评估sRT的疗效.
主要方法:
- 一组33名患有复发性PCa的患者接受了由18F-PSMA PET/CT指导的sRT.
- 患者接受了针对前列腺床 (PB),淋巴结 (LN) 或骨转移的sRT.
- 在PSMA PET/CT上记录了前列腺特异性抗原 (PSA) 水平和SUVmax.
主要成果:
- 在12个月的中位随访期内,69.7%的患者实现了局部控制,没有远程进展.
- 与淋巴结 (58.3%) 和骨头 (40%) 相比,针对前列腺床的sRT观察到更高的局部控制率 (87.5%).
- 平均SUVmax值因复发部位而异:PB (12.5),LN (19.0) 和骨 (30.1).
结论:
- 在治疗复发性前列腺癌方面,PSMA PET/CT引导的sRT是有效的.
- 这种成像模式可以在PCa复发和低PSA值的男性中进行早期干预.
- 大约70%的患者在治疗后一年达到完全的临床反应.
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