MRI对CT不逊于第1阶段睾丸睾丸型研讨会。在6年期间,无论成像模态如何,3次扫描计划都不为7次扫描计划。使用MRI而不是CT可以减少该患者人群中的辐射暴露[1]。目前的指南提倡对1期睾丸癌患者行睾丸切除术后进行CT监测。虽然这种癌症有很高的存活率,但由于通过CT扫描反复暴露于辐射,有长期的不良健康影响。第三期trist试验(NCT00589537.)试图证明还有减少的CT方案或MRI的不较低,以安全有效地监测患有第1阶段睾丸癌的患者。调查人员将669名男性随机化至4个臂中的1个,其中2个用CT监测,其中2个用MRI监测其中2个。每个成像模型ARM有2个不同的频率计划:一个扫描患者,6,12,18,24,36,48和60个月;其他扫描患者在6,18和36个月。所有患者均遵循6年。主要结果措施是与皇家马斯登医院≥2C病复发的患者的比例。在669次试验参与者中,重复了82(12%)。只有10个中只有10个被评为≥2C复发。大多数复发在预定成像时被诊断出来;此外,超过3年的复发是罕见的。 Although there were more events in those who received 3 scans instead of 7, the criteria for non-inferiority were still met. Fewer events were observed in those who received MRI scans compared with CT. No tumor-related deaths occurred and the 5-year disease-free survival and overall survival rates were similar across all groups. Researchers asserted that surveillance is both safe and effective in stage 1 testicular seminoma, regardless of frequency or type of imaging. Furthermore, imaging beyond 3 years may actually be unnecessary, as relapse after 3 years is rare. Finally, they recommend that the standard of care should recommend MRI instead of CT, in an attempt to limit radiation exposure in this young population.

  1. Joffe J. Imaging Is Seaginoma睾丸癌监测中的成像模型和频率:随机,第三阶段,因子试验(TRISST)的结果。asco Geatitureariarariase癌症研讨会,2011年2月11日至13日。