Single- versus multi-phase acquisition protocol for prospective-triggered sequential dual-source CT coronary angiography: comparison of image quality and radiation dose.
作者信息
Huang Wei, Xu Yiming, Lu Daoyan, Shi Yuzhen, Lu Guangming
机构信息
Department of Medical Imaging, Nanjing Jinling Hospital, Southern Medical University (Guangzhou), 305# Eastern Zhongshan Road, Nanjing 210002, China; Department of Medical Imaging, Huai'an First People's Hospital, Nanjing Medical University, 6# Western Beijing Road, Huai'an 223300, China.
Department of Medical Imaging, Huai'an First People's Hospital, Nanjing Medical University, 6# Western Beijing Road, Huai'an 223300, China.
出版信息
Clin Imaging. 2015 Jul-Aug;39(4):597-602. doi: 10.1016/j.clinimag.2015.02.014. Epub 2015 Mar 4.
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.
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