造影剂动脉达峰时间及强化峰值影响因素研究  

The research about the influencing factors of the peak time of imaging artery and peak attenuation

作　　者：杨艳[1] 王晶[1] 刘云峰[1] 王全帮 蔡国新[1] 

机构地区：[1]合肥市第三人民医院CT室,安徽230022

出　　处：《安徽卫生职业技术学院学报》2016年第2期22-23,共2页Journal of Anhui Health Vocational & Technical College

摘　　要：目的:研究造影剂动脉达峰时间(PT)及强化峰值(PA)影响因素。方法:搜集29例螺旋CT实时监控技术(Smart Prep)动态增强患者的扫描参数,采用单因素相关和独立样本t检验分析研究患者的性别、年龄、身高、体重、心率、收缩压、舒张压、体质指数(BMI)、体重用药量对PT及PA的影响程度。结果:29例患者PT与体重、身高、BMI正相关,与患者的年龄、心率、血压、体重用药量不相关;PA与体重、BMI、患者舒张压负相关,与体重用药量正相关,与患者年龄、身高、心率、收缩压无关。女性PT快于男性,统计分析差异有统计学意义;男女PA差异无统计学意义。结论:可根据患者的BMI及舒张压适当调控患者注射对比剂的体重用药量及延时扫描时间,以期用最少造影剂,获得最佳诊断图像。Objective： Study the influencing factors of the peak time of imaging artery and peak attenuation. Methods： Collect the Smart Prep scanning parameters about twenty-nine samples of dynamic enhanced patients. Then by using single factor correlation and independent-samples test, analyze the influencing degree of patients＇ sex, age, height, weight, heart rate, systolic pressure, diastolic pressure, BMI, dosage per kg on peak time and peak attenua- tion.Results： The peak time of twenty-nine patients is positively correlated to weight, height and BMI, and it isn＇t correlated to patients＇ age, heart rate, blood pressure and dosage. The peak attenuation is negatively correlated to weight, BMI and diastolic pressure, and positively correlated to dosage Meanwhile, it is uncorrelated to patients＇ age, height heart rate, systolic pressure.Woman＇ s peak time is quicker than men＇ s. Statistical analysis of differences has statistical significance. The differences in female and male peak attenuation have no statistical significance. Conclusion：Adjust the scanning time delay and the dosage of injection of contrast material to get the best diagnostic imaging by using the least contrast agent according to patients＇ BMI and diastolic pressure.

关 键 词：CT动态增强 实时监控技术 达峰时间 强化峰值 影响因素 

分 类 号：R445[医药卫生—影像医学与核医学]