• Clinical decision support systems for imaging referral provide generic justification for the clinical situation, but personal justification is needed particularly when dose is high or when the patient is sensitive to the effects of radiation. • Strategies to address cumulative high doses include stronger justification between radiologists and referrers; guidance for the frequency of surveillance procedures; and the drive to reduce CT doses through innovation in industry.

中文翻译：

---

多次 CT 检查的累积辐射剂量：更有力的理由、更少的重复或需要剂量减少技术？

• 用于影像转诊的临床决策支持系统为临床情况提供了一般的理由，但需要个人理由，特别是当剂量高或患者对辐射的影响敏感时。• 解决累积高剂量问题的策略包括放射科医生和推荐人之间更有力的论证；监测程序频率指南；以及通过行业创新减少 CT 剂量的动力。