腹盆部空腔脏器癌肿术后局部肿物的螺旋CT诊断研究

Local masses after resection of solid carcinoma of abdominal and pelvic hollow organs: diagnosis with sprial CT

目的 :分析腹盆部空腔脏器实体癌肿术后肿物的螺旋CT早期增强表现 ,及评价SCT对其良恶性鉴别诊断的价值。方法 :5 4例腹盆部空腔脏器实体癌肿病人术后 3～ 46个月随诊时发现腹盆部肿物 ,即行SCT平扫与增强扫描 ,并测肿物的CT强化值。结果 :5 4例病人 ,SCT共发现 60个病灶。SCT增强早期 ,2 2个纤维化病灶强化值为 0～ 8HU ,3 8个复发癌与炎性病变强化值为 13～ 46HU。SCT对纤维化病灶能准确判断 ,对复发癌判断的准确性 88.3 % ,敏感性 10 0 % ,特异性75 .9%。结论 :SCT增强早期对腹盆部空腔脏器实体癌肿术后肿物的鉴别提供了有价值的信息 ,有助于复发癌与纤维化病变的鉴别诊断。

Objective:To analyze early enhanced spiral CT(SCT) appearance of after operation of solid carcinoma of abdominopelvic hollow organs and to evaluate SCT in distinguishing recurrent tumors from benign conditions.Methods:54 patients with local masses detected 3～46 months after resection of solid carcinoma of abdominopelvic hollow organs were included in this study. All patients were performed abdominal or pelvic plain and enhanced SCT.The CT value of the masses before and after enhancement was measured.Results:60 lesions were detected on CT in 54 patients. In early phase of enhancing helical CT, the CT values were 0～8HU in 22 fibrosis lesions and were 13～46HU in 38 recurrent tumor and inflammation lesions. 22 fibrosis lesions were correctly diagnosed on SCT. The accuracy, sensitivity and specificity in diagnosing recurrent tumor with SCT was 88.3%,100% and 75.9% ,respectively. Conclusion:The early enhancing phase of helical CT can provide valuable information in differential diagnosis of local masses after operation of solid carcinoma of hollow organs, and is helpful in distinguishing recurrent tumor from fibrosis.