Patino Manuel, Fuentes Jorge M, Singh Sarabjeet, Hahn Peter F, Sahani Dushyant V
1 Division of Abdominal Imaging and Intervention, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St, Boston, MA 02114.
AJR Am J Roentgenol. 2015 Jul;205(1):W19-31. doi: 10.2214/AJR.14.13402.
This article discusses the clinical challenge of low-radiation-dose examinations, the commonly used approaches for dose optimization, and their effect on image quality. We emphasize practical aspects of the different iterative reconstruction techniques, along with their benefits, pitfalls, and clinical implementation.
The widespread use of CT has raised concerns about potential radiation risks, motivating diverse strategies to reduce the radiation dose associated with CT. CT manufacturers have developed alternative reconstruction algorithms intended to improve image quality on dose-optimized CT studies, mainly through noise and artifact reduction. Iterative reconstruction techniques take unique approaches to noise reduction and provide distinct strength levels or settings.
本文探讨了低辐射剂量检查的临床挑战、常用的剂量优化方法及其对图像质量的影响。我们强调了不同迭代重建技术的实际应用方面,以及它们的优点、缺陷和临床应用。
CT的广泛使用引发了对潜在辐射风险的担忧,促使人们采取各种策略来降低与CT相关的辐射剂量。CT制造商开发了替代重建算法,旨在通过减少噪声和伪影来提高剂量优化CT研究的图像质量。迭代重建技术采用独特的降噪方法,并提供不同的强度级别或设置。