肾脏常规螺旋CT扫描,不能发现隐匿性的肾脏肿块。为此,作者对40例疑有肾脏肿块的患者做了早期增强扫描和延迟扫描的双盲观察研究。男25例,女15例,年龄18～81岁。使用GE Hispeed CT扫描机,层厚5mm或7mm。对比剂总量按120～150ml,次性静脉团注,速度2ml/s;或前半量按2ml/s,后半量按1.5ml/s注射。早期,即皮质期,从开始注射对 Renal routine spiral CT scan, can not find occult kidney mass. To this end, the authors of 40 cases of suspected kidney mass patients with early enhanced scan and delayed scan double-blind observation. 25 males and 15 females, aged 18 to 81 years. Using a GE Hispeed CT scanner, the layer thickness is 5mm or 7mm. Contrast agent by 120 ~ 150ml, secondary venous bolus, speed 2ml / s; or the first half by 2ml / s, the latter half by 1.5ml / s injection. Early, that is, cortical phase, from the beginning of injection