Reducing radiation dose in emergency computed tomography with automatic exposure control techniques

被引：61
|
作者：
Kalra M.K. [1 ]
Rizzo S.M.R. [1 ]
Novelline R.A. [1 ]
机构：
[1] Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, Founders 215
来源：
Emergency Radiology | 2005年 / 11卷 / 5期
关键词：
Automatic exposure control; Computed tomography (CT); Radiation dose;
D O I：
10.1007/s10140-004-0395-7
中图分类号：
学科分类号：
摘要：
Computed tomography (CT) scanning is being increasingly used for evaluation of trauma, which most commonly involves younger individuals. As younger patients are at higher risk for radiation-induced cancer compared to older patients, radiation dose reduction is an important issue in emergency CT scanning. With automatic exposure control techniques, users select a desired image quality and the system adapts tube current to obtain the desired image quality with greater radiation dose efficiency. These techniques can help in reducing radiation dose by 10-60% in most instances. This review article presents a comprehensive description of fundamentals, clinical applications and radiation dose benefits of automatic exposure control in emergency CT scanning. © ASER 2005.
引用
收藏
页码：267 / 274
页数：7
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