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目的 :评价螺旋CT作肝脏增强扫描的作用。资料与方法 :用螺旋CT和造影剂快速注射对 1 2 0例肝脏作增强扫描。以 1～ 2ml/s的速度经肘前静脉注入造影剂 ,在注完造影剂后 2 0秒内采用一次屏气技术完成对肝脏连续扫描。结果 :螺旋CT与常规扫描相比扫描速度快、图象无失真、变形。结论 :螺旋CT作肝脏增强扫描无盲区 ,可减少造影剂的用量 ,利于回顾性任选层面重建 ,并可如实显示肿瘤血供和血管受侵 ,便于病灶性质的鉴别和多血供、多发病灶及小病灶的发现。
Objective: To evaluate the effect of spiral CT in liver enhancement scanning. Materials and Methods: One hundred and twenty cases of liver were scanned by spiral CT and contrast agent fast injection. At 1 ~ 2ml / s rate of injection of contrast agent through the antecubital vein, the injection of contrast agent within 20 seconds after using a breath-hold technique to complete the continuous scan of the liver. Results: Spiral CT scan speed compared with conventional scanning, the image without distortion, deformation. CONCLUSION: Spiral CT has no blind spot for enhancement scanning of liver, which can reduce the dosage of contrast medium, which is benefit for retrospective optional reconstruction. It can show tumor blood supply and blood vessel invasion accurately, facilitate the identification of lesions and multiple blood supply, multiple lesions And the discovery of small lesions.