Department of Radiology, Johns Hopkins University, Baltimore, MD 21287, USA.
J Am Coll Radiol. 2013 Jan;10(1):37-41. doi: 10.1016/j.jacr.2012.06.025.
Increasing concerns about radiation dose have led CT manufacturers to further develop radiation dose reduction tools in the latest generation of CT scanners. These tools include automated tube current modulation, automated tube potential selection, and iterative reconstruction. This review details the principles underlying each of these 3 dose reduction utilities and their different permutations on each of the major vendors' equipment. If available on the user's equipment, all 3 of these tools should be used in conjunction to enable maximum radiation dose savings.
越来越多的人对辐射剂量感到担忧，这促使 CT 制造商在最新一代 CT 扫描仪中进一步开发辐射剂量降低工具。这些工具包括自动管电流调制、自动管电压选择和迭代重建。本综述详细介绍了这 3 种剂量降低实用程序的基本原理及其在各大供应商设备上的不同排列方式。如果用户的设备上有这些工具，应同时使用这 3 种工具以实现最大的辐射剂量节省。
