CT中降低辐射剂量的策略。
Strategies for reducing radiation dose in CT.
作者信息
McCollough Cynthia H, Primak Andrew N, Braun Natalie, Kofler James, Yu Lifeng, Christner Jodie
机构信息
Department of Radiology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA.
出版信息
Radiol Clin North Am. 2009 Jan;47(1):27-40. doi: 10.1016/j.rcl.2008.10.006.
Abstract
In recent years, the media has focused on the potential danger of radiation exposure from CT, even though the potential benefit of a medically indicated CT far outweighs the potential risks. This attention has reminded the radiology community that doses must be as low as reasonably achievable (ALARA) while maintaining diagnostic image quality. To satisfy the ALARA principle, the dose reduction strategies described in this article must be well understood and properly used. The use of CT must also be justified for the specific diagnostic task.
摘要
近年来，媒体一直关注CT辐射暴露的潜在危险，尽管医学指征明确的CT检查其潜在益处远大于潜在风险。这种关注提醒了放射学界，在保持诊断图像质量的同时，剂量必须尽可能合理地低（尽可能低的合理可达剂量，ALARA）。为了满足ALARA原则，必须充分理解并正确运用本文所述的剂量降低策略。CT检查的使用也必须针对特定的诊断任务进行正当性论证。
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