Heggie J C P, Kay J K, Lee W K
Department of Medical Engineering and Physics, St Vincent's Hospital Melbourne, Victoria, Australia.
Australas Radiol. 2006 Jun;50(3):278-85. doi: 10.1111/j.1440-1673.2006.01579.x.
This paper reviews the reasons why multi-slice CT scanners may give patients higher dose than their single-slice predecessors and discusses the type of optimization of multi-slice scan protocols that may be undertaken to keep patient doses to acceptable levels without compromising image quality. It also provides estimates of patient effective dose values and dose length products for typical procedures and briefly discusses the implication that these dose values have for the induction of possible stochastic effects.
本文回顾了多层CT扫描仪可能比其单层前辈给患者带来更高剂量的原因，并讨论了为在不影响图像质量的情况下将患者剂量保持在可接受水平而可能进行的多层扫描协议优化类型。它还提供了典型检查的患者有效剂量值和剂量长度乘积的估计，并简要讨论了这些剂量值对可能诱发随机效应的影响。
