Standard chest CT using combined automated tube potential selection and iterative reconstruction: image quality and radiation dose reduction

被引：2
|
作者：
Chae, In Hye [1 ]
Kim, Yookyung [1 ]
Lee, So Won [1 ]
Park, Ji Eun [1 ]
Shim, Sung Shine [1 ]
Lee, Jin Hwa [2 ]
机构：
[1] Ewha Womans Univ, Dept Radiol, Sch Med, Seoul 158710, South Korea
[2] Ewha Womans Univ, Div Pulmonol, Sch Med, Dept Internal Med, Seoul 158710, South Korea
来源：
CLINICAL IMAGING | 2014年 / 38卷 / 05期
关键词：
Computed tomography (CT); Radiation dose; Iterative reconstruction; Lung; COMPUTED-TOMOGRAPHY; EXPOSURE; ANGIOGRAPHY; ATTENUATION; PROTOCOL;
D O I：
10.1016/j.clinimag.2014.04.004
中图分类号：
R8 [特种医学]; R445 [影像诊断学];
学科分类号：
1002 ; 100207 ; 1009 ;
摘要：
Objective: To evaluate the image quality and radiation dose reduction of chest computed tomography (CT) using combined automated tube potential selection (ATPS) and iterative reconstruction (IR). Materials and Methods: Image quality and radiation dose were compared between conventional contrast-enhanced chest CT using 120 kVp and filtered back projection (Protocol A) and CT using ATPS and IR (Protocol B) in 43 patients. Results: The effective radiation dose was 3.6 +/- 0.4 mSv for Protocol A and 2.2 +/- 0.6 mSv for Protocol B (mean dose reduction, 39.7%). Protocol B showed diagnostic image quality in all patients. Conclusion: ATPS and IR allows for radiation dose reduction while maintaining diagnostic image quality. (C) 2014 Elsevier Inc. All rights reserved.
引用
收藏
页码：641 / 647
页数：7
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