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为了确定结肠充气螺旋CT扫描在结肠癌分期中的准确性,作者对已知或疑为结肠病变的52例病人(男27例,女25例,年龄40～88岁)做了此项检查。检查前一天清洁结肠,扫描前即刻静注Buscopan 20mg,然后通过钡灌肠管或Foley氏管注气扩张结肠,使直肠、乙状结肠直径至少为3cm,降结肠4cm以上,升结肠和横结肠5cm以上。病人仰卧位照取定位片,扫描范围从耻骨联合至膈肌,层厚5mm,螺距1.5,三维工作站重建间隔2.5mm。12例以3ml/s速
To determine the accuracy of the colonic aerated spiral CT scan in the staging of colon cancer, the authors performed this examination on 52 patients (27 males and 25 females, aged 40-88 years) with known or suspected colon lesions. The colon was cleaned the day before the examination. Buscopan 20 mg was injected intravenously immediately before the scan. The colon was then inflated with a gas injection through a barium enema tube or Foley’s tube. The diameter of the rectum and sigmoid colon was at least 3 cm, the descending colon was more than 4 cm, and the ascending colon and transverse colon were more than 5 cm. The patient took a positioning tablet in supine position. The scan ranged from the pubic symphysis to the diaphragm, with a layer thickness of 5 mm, a pitch of 1.5, and a three-dimensional workstation reconstruction interval of 2.5 mm. 12 cases with 3ml/s speed