野战方舱内冠状动脉造影投照体位对辐射剂量和影像质量的影响

发布时间：2018-07-24 20:00

【摘要】：目的探讨野战综合手术救治方舱内施行冠状动脉(冠脉)造影中不同的投照体位对患者辐射剂量和影像质量的影响,为剂量优化提出建议。方法用标准体模测定冠脉造影9个不同投照体位下图像清晰时剂量面积乘积(DAP)和入射表面剂量(ESD)透视和摄影的辐射剂量值;并在方舱内对6只实验动物施行9个不同投照体位下的冠脉造影,观察比较不同体位的影像质量。结果不同投照体位下,透视时DAP剂量范围值为12.96～31.28μGym2/s,ESD透视范围为21 403.33～71 106.67μGy/S;摄影时DAP剂量范围值为39.55～87.59μGy/s(10帧),ESD剂量范围值为67 647.25～212 498.54μGy(10帧)。正位剂量值最小,脾位最大,其他体位与正位相比差异均有统计学意义(P0.05);不同体位影像质量平均评分值范围为3.55～3.85,正位影像质量最好,脾位最差,其他体位与正位相比差异均有统计学意义(P0.05)。结论不同投照体位,辐射剂量、影像质量不同。手术过程中应根据手术需要,合理选择投照体位以期既能保证图像质量又能减少患者受照剂量。
[Abstract]:Objective to investigate the effects of different positions of coronary angiography (CAG) on the radiation dose and image quality of patients undergoing combined field surgery, and to provide suggestions for dose optimization. Methods the dose area product (DAP), incident surface dose (ESD) fluoroscopy and radiation dose were measured by standard phantom under 9 different positions of coronary angiography. Coronary angiography under 9 different positions was performed in 6 experimental animals in the cubicle to observe and compare the image quality of different postures. Results the dose range of DAP in different positions was 12.96V 31.28 渭 Gym2 / sESD, 21,403.33v / s, 71 渭 Gy / s, and that of DAP was 39.55 渭 Gy/s (10 frames) and 67,647.25212 498.54 渭 Gy (10 frames), respectively. The average image quality of different positions was 3.55 ~ 3.85, the quality of positive image was the best, the spleen position was the worst, the difference was significant (P0.05), the value of positive position was the smallest, the spleen position was the largest (P0.05), and the average image quality of different positions was 3.55 ~ 3.85. There were significant differences between other postures and positive postures (P0.05). Conclusion different position, radiation dose and image quality are different. In order to ensure the image quality and reduce the radiation dose, the position should be reasonably selected according to the need of operation.
【作者单位】：沈阳军区总医院心血管内科;
【基金】：辽宁省科技攻关课题(2011225006)
【分类号】：R82

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