[螺旋CT在结直肠癌术前分期中的应用——影像学与病理学对照]
[Spiral CT in the preoperative staging of colorectal carcinoma-radiologic-pathologic correlation].
作者信息
Zhou Chunwu, Li Jing, Zhao Xinming
机构信息
Cancer Institute (Hospital), Chinese Academy of Medical Sciences, Peking Union Medical College. Beijing 100021, China.
出版信息
Zhonghua Zhong Liu Za Zhi. 2002 May;24(3):274-7.
OBJECTIVE
To evaluate spiral CT (SCT) in the preoperative staging of colorectal carcinomas.
METHODS
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.
RESULTS
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.
CONCLUSION
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.
目的
评估螺旋CT（SCT）在结直肠癌术前分期中的应用价值。
方法
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。
结果
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）。
结论
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。
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