Zhou Chunwu, Li Jing, Zhao Xinming
Cancer Institute (Hospital), Chinese Academy of Medical Sciences, Peking Union Medical College. Beijing 100021, China.
Zhonghua Zhong Liu Za Zhi. 2002 May;24(3):274-7.
To evaluate spiral CT (SCT) in the preoperative staging of colorectal carcinomas.
Fifty-one patients suspicious of having colorectal carcinoma underwent spiral CT scans performed from the dome of the diaphragm to symphysis pubica after cleansing enema and rectal air insufflation. Fourty-one of the 51 patients were proved to have colorectal carcinoma by colonoscopy and/or pathology. The findings of SCT of 31 patients treated with surgery were compared with the surgical pathological examination for staging.
The overall accuracy rate of SCT staging was 58.1% (18/31). For evaluation of T staging and N staging, the accuracy rates were 84.4% (27/32) and 61.3% (19/31). Sensitivity and specificity for serosal infiltration were 92.9% (26/28) and 50.0%, They were 70.0% (14/20) and 81.8% (9/11) for lymph node involvement.
SCT scan, playing a significant role in the preoperative staging of colorectal carcinoma, is useful to detect the serosal infiltration, lymph node and distant metastasis.
评估螺旋CT（SCT）在结直肠癌术前分期中的应用价值。
51例疑似结直肠癌患者在清洁灌肠及直肠注气后，行从膈顶至耻骨联合的螺旋CT扫描。51例患者中41例经结肠镜检查和/或病理证实为结直肠癌。将31例行手术治疗患者的SCT检查结果与手术病理检查结果进行分期对比。
SCT分期的总体准确率为58.1%（18/31）。在评估T分期和N分期时，准确率分别为84.4%（27/32）和61.3%（19/31）。浆膜侵犯的敏感度和特异度分别为92.9%（26/28）和50.0%，淋巴结受累情况的敏感度和特异度分别为70.0%（14/20）和81.8%（9/11）。
SCT扫描在结直肠癌术前分期中发挥重要作用，有助于检测浆膜侵犯、淋巴结及远处转移情况。
