摘要
目的 报告结肠的螺旋CT扫描方法 ,评估低张水灌肠螺旋CT扫描 (WESCT)对大肠肿瘤性病变的诊断价值和限度。方法 对 6 5例已知或高度怀疑结肠病变的病人 ,行螺旋CT扫描。扫描前清结肠道 ,扫描时应用肌肉松弛剂和温生理盐水保留灌肠。结果 6 5例病人中有 6 3例清晰显示病变 ,其中结肠癌 48例 ,淋巴瘤 5例 ,转移瘤 3例 ,脓肿 2例 ,炎性狭窄 1例 ,盲肠类癌 2例 ,结肠息肉 2例。 1例结肠息肉和 1例息肉恶变WESCT未检出。 48例大肠癌WESCT正确分期 39例 ,其中浆膜层浸润的准确率为 10 0 % (2 8/2 8) ,对异常淋巴结检出的敏感度达 95 .3% (41/4 3) ,淋巴结转移的特异性诊断正确率为 83.9% (2 6 /31)。 3例转移瘤因清晰显示病变位于肠壁并向外生长及明确的病史而确诊。结论 低张水灌肠螺旋CT扫描对大肠癌的分期非常有价值。
Purpose Report the method of CT scan in colorectum and to determine the value and limits of water enema spiral CT (WESCT) in diagnosing of colorectal tumors. Methods Sixty five patients with known or doubted lesion in colon or rectum were examined by SCT. The diagnosis between benign and malignant was made according to the findings of SCT, and all cases of colorectal carcinoma were staged according to mordified Dukes classification. Results 63 cases of all patients' lesions were demonstrated clearly by WESCT and the sensitivity was 96.9%. Among them 48 cases were carcinoma, and 5 cases lyphoma, 3 cases metastases, 2 cases abscess, 1 case stricture with grannulation, 2 cases carcinoid, 2 cases polyps. 1 case polypoid and 1 case malignant polypoid adenoma(all less than 5mm) were not demonstrated. 42 cases of carcinoma were correctly staged in Dukes. Sensitivity and specificity for the assessment of local serosal invasion were 100% (28/28) and for lymph node involvement were 95.3% (41/43) and 83.9% (26/31) respectively. 3 cases metastases were diagnosed correctly. Conclusion WESCT scan is a better method of depicting the colorectal tumor and allows for accurate depiction and staging of colorectal carcinoma. [
出处
《中国医学影像技术》
CSCD
2001年第4期306-308,共3页
Chinese Journal of Medical Imaging Technology
关键词
肿瘤分期
大肠肿瘤
螺旋CP
诊断
Colon
Rectum
Neoplasms
Neoplasm staging
Tomography, X ray computed
