The comparison of radiation dose in coronary angiography through different accesses

DENG Yunpeng; BAI Shengyao; FAN Yudong; YANG Xingsheng; WU Di

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Medical Journal of the Chinese People Armed Police Forces ›› 2020, Vol. 31 ›› Issue (4) : 308-312.

ORIGINAL ARTICLES

The comparison of radiation dose in coronary angiography through different accesses

DENG Yunpeng¹, BAI Shengyao², FAN Yudong¹, YANG Xingsheng¹, WU Di¹

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Abstract

Objective To compare radiation doses of patients and operators between transfemoral and transradial coronary angiography.Methods A phantom was used to simulate coronary angiography under clinical conditions. According to different accesses, our experiment was divided into the TFI group (transfemoral intervention)and the TRI group (transradial intervention).According to different gauge positions and radiation protection measures,the TFI group was divided into subgroups TFI1-TFI4 while the TRI group was divided into subgroups TRI1-TRI8.The radiation doses of patients and operators were recorded with the same thermoluminescent dosimeter and the X-ray dosimeter equipped in the angiography machine.The angiography positions were switched while the fluoroscopy and cine time were controlled by using preset programs in the machine.The measurement of each group was pepeated 10 times before the mean values were compared.Results Compared with the TFI group,the mean values of the aggregate dose,cumulative dose of fluoroscopy and angiography in the TRI group increased significantly.Among the 7 positions of coronary angiography,the maximal values of DAP and AK were related to LAO position.When operating with the radial artery access ,the operators'radiation dose in the subgroups with the protection of exclusive use of radial artery was reduced obviously compared with subgroups without the protection.Conclusions Compared with transfemoral coronary angiography,the radiation dose of operator’s hands and chests is significantly higher in transradial coronary angiography.The difference of operator’s chests is much more remarkable in the LAO positions than in other positions.Whatever the access ,the radiation dose of patients is highest in the LAO positions.Therefore ,operators should choose the right position in the course of operation to reduce unnecessary radiation.The combined use of special radiak artery protective equipment and conventional protective equipments can greatly reduce the radiation dose of operators undergoing transradial operation,which is worth of popularization.

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radial aretry / femoral aretry / radiation dose / protection / position effects

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DENG Yunpeng, BAI Shengyao, FAN Yudong, YANG Xingsheng, WU Di. The comparison of radiation dose in coronary angiography through different accesses[J]. Medical Journal of the Chinese People Armed Police Forces. 2020, 31(4): 308-312

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