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肝脏 CT 扫描规范指南检查前禁饮食4～6 h,签署使用对比剂知情同意书。检查前15 min 口服胃肠道对比剂500～800 ml,检查前即刻再口服对比剂200 ml 左右。对比剂可以选择纯水或含1.5%碘对比剂的水溶液。具体参数如下。1.单层 CT 扫描:使用单层 CT 扫描仪,扫描部位:肝脏。电压:120 kV;电流:250 mA;探测器准直器:7～10 mm;床速:X 线管旋转1周10.5 mm;X 线管旋转1周时间:1 s;螺距:1.5;重组层厚:5 mm;重组间隔:≤探测器的准直器;视
Liver CT scan guide to check the pre-ban diet for 4 ~ 6 h, sign the use of contrast agent informed consent. The first 15 min of oral gastrointestinal contrast agent 500 ~ 800 ml, immediately before the test again oral contrast agent 200 ml or so. The contrast agent can be pure water or an aqueous solution containing 1.5% iodine contrast agent. Specific parameters are as follows. 1. Single-slice CT scan: Using a single-slice CT scanner, scan the site: the liver. Voltage: 120 kV; Current: 250 mA; Detector collimator: 7 ~ 10 mm; Bed speed: X-ray tube rotates 10.5 mm for one revolution; X-ray tube rotates for 1 week time: 1 s; Thickness: 5 mm; Recombination interval: ≤ Detector collimator;