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本研究的目的是探讨造影剂注射速度与肝及腹部其他脏器CT增强的夫系。共77例,年龄2个月～16岁。先行自膈顶至髂骨峭层厚1cm的CT平扫,然后以不同的注射速度静脉注射2ml/kg造影剂(欧乃派克,240mg磺/ml),在开始注射后的25～45s作1cm层厚与平扫范围相同的连续扫描,测量主动脉、肝静脉、肝及肾的从开始注射至高峰显影的时间。当注射速度分别为每分0～0.99、1.00～1.99,2.00～2.99,3.00～3.99及4.00ml/kg以上时,主动脉高峰显影时间平均在134s、112s、77s、
The purpose of this study was to investigate the relationship between contrast agent injection rate and CT enhancement in other organs of liver and abdomen. A total of 77 cases, aged 2 months to 16 years. First, from the top of the diaphragm to the iliac crevice 1cm thick CT scan, and then at different injection rates of intravenous injection of 2ml / kg contrast agent (Europa Park, 240mg sulf / ml), 25 ~ 45s after the start of injection for 1cm Continuous scanning with the same slice thickness and flatness range was used to measure the time from injection to peak development of the aorta, hepatic vein, liver and kidney. When the injection speed were 0 ~ 0.99, 1.00 ~ 1.99, 2.00 ~ 2.99, 3.00 ~ 3.99 and 4.00ml / kg respectively, the aorta peak development time averaged at 134s, 112s, 77s,