【摘要】 目的探索低管电压及对比剂剂量对超重患者前瞻性心电门控冠状动脉成像的影响。方法将80例超重患者随机分为对照组(传统管电压及对比剂剂量)及观察组(低管电压及对比剂剂量),比较2组前瞻性心电门控冠状动脉成像的效果。结果观察组图像质量优良率90%,对照组图像质量优良率92.5%,差异无统计学意义(P>0.05);2组冠脉成像CT值、图像噪声、图像信噪比、辐射剂量相比较,差异有统计学意义(P<0.05)。结论采取低管电压及对比剂剂量可显著降低患者受到的辐射剂量。更多还原

【Abstract】 Objective To explore the effects of low tube voltage and contrast dose on the prospective ECG gating coronary artery imaging in overweight patients.Methods A total of 80 overweight patients were randomly divided into control group(traditional tube voltage and contrast medium dose) and observation group(low tube voltage and contrast medium dose),and effect of prospective ECG gating coronary artery imaging was compared.Results In the observation group,the excellent rate of imaging quality was 90%,and which in the control group was 92.5%(P > 0.05).There were significant differences in values of CT coronary artery imaging,image noise,image signal-tonoise ratio and radiation dose between two groups(P < 0.05).Conclusion Low tube voltage and contrast dose can significantly reduce the patient’s radiation dose.更多还原