Single-versus multi-phase acquisition protocol for prospective-triggered sequential dual-source CT coronary angiography: comparison of image quality and radiation dose

被引:3
作者
Huang, Wei [1 ,2 ]
Xu, Yiming [2 ]
Lu, Daoyan [2 ]
Shi, Yuzhen [2 ]
Lu, Guangming [1 ]
机构
[1] Southern Med Univ Guangzhou, Nanjing Jinling Hosp, Dept Med Imaging, Nanjing 210002, Jiangsu, Peoples R China
[2] Nanjing Med Univ, Huaian Peoples Hosp 1, Dept Med Imaging, Huaian 223300, Peoples R China
关键词
Tomography; X-ray computed; Coronary angiography; Image quality; Radiation dose;
D O I
10.1016/j.clinimag.2015.02.014
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 investigate image quality and radiation dose of single-versus multi-phase acquisition protocol for prospective-triggered sequential dual-source computed tomography (CT) coronary angiography. Materials and methods: A total of 140 patients were randomly assigned to single-or multi-phase group. Image quality and radiation dose were compared. Results: No significant difference was found in image quality between the two groups. Effective dose of single-phase group was 21.6% lower than that of multi-phase group (P<.001). Conclusions: Prospective-triggered sequential dual-source CT coronary angiography using single-phase protocol can reduce radiation dose without sacrifice of image quality in diastole compared with multi-phase protocol. (C) 2015 Elsevier Inc. All rights reserved.
引用
收藏
页码:597 / 602
页数:6
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