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为了解周围性胆管癌在螺旋CT动脉期及门静脉期中的表现,作者对34例病理证实的周围性胆管癌患者进行螺旋CT扫描。其中男性25例,女性9例,年龄35～75岁,平均59岁。增强扫描使用120ml离子型对比剂,以3ml/s静脉注射。X线准直宽10mm,螺距比1:1,动脉期及门脉期扫描分别在静注对比剂30s及65s后进行。7mm层厚连续横断面重建。作者发现,肿瘤最大径约5～17cm,平均9cm,所有肿瘤边缘均不规则,12例(35％)可见卫星灶。23例(68％)腹部可见肿大淋巴结,23例
To understand the performance of peripheral bile duct carcinoma in spiral CT arterial and portal venous phases, the authors performed spiral CT scans on 34 patients with pathologically confirmed peripheral bile duct cancer. There were 25 males and 9 females, aged 35-75 years, with an average age of 59 years. The enhanced scan uses 120 ml of ionotropic contrast agent and is injected intravenously at 3 ml/s. The X-ray collimation width was 10mm, the pitch ratio was 1:1, and the arterial and portal phase scans were performed 30 s and 65 s after intravenous injection of contrast medium, respectively. 7mm layer thickness continuous cross-sectional reconstruction. The authors found that the maximum diameter of the tumor was about 5 to 17 cm, with an average of 9 cm. All tumors were irregular at the edge, and satellite lesions were seen in 12 cases (35%). 23 cases (68%) had enlarged lymph nodes in the abdomen, 23 cases