CAJ | 학술논문

目的通过CT扫描与病理对照,对兔肝VX2肿瘤RFA后残余瘤与炎症进行鉴别.方法兔肝VX2肿瘤射频消融(RFA)后不同时期行CT及病理检查,观察RFA后不同时期的残余瘤与炎症的CT表现.结果 CT增强扫描,残瘤与炎症均表现为周边强化带,炎症还表现为强化带外侧的肝组织由内向外逐渐减弱强化影,炎症的这种强化影于术后第2天最强,之后逐渐减弱,2周后基本消失.结论 RFA后1周内,CT增强扫描尚不能准确分辨残瘤与炎症反应带;两周后低密度灶周边出现强化影应考虑为残余瘤存在.
목적 통과CT소묘여병리대조,대토간VX2종류RFA후잔여류여염증진행감별.방법 토간VX2종류사빈소융(RFA)후불동시기행CT급병리검사,관찰RFA후불동시기적잔여류여염증적CT표현.결과 CT증강소묘,잔류여염증균표현위주변강화대,염증환표현위강화대외측적간조직유내향외축점감약강화영,염증적저충강화영우술후제2천최강,지후축점감약,2주후기본소실.결론 RFA후1주내,CT증강소묘상불능준학분변잔류여염증반응대;량주후저밀도조주변출현강화영응고필위잔여류존재.
Objective To distinguish residual tumor from inflammation after radiofrequency ablation (RA) for hepatic VX2 carcinoma in rabbits according to the comparative study between CT and pathological findings.Methods CT and pathologic examination were performed in different stages of RFA for rabbits hepatic VX2 models,and their different performances were observed.Results Marginal enhancement band was showed with enhanced CT of both residual tumor and inflammation.Moreover,liver tissues peripheral to enhancement band were in gradual weaken pattern.The enhancement band of inflammation was most obvious on the 2~(nd) day after RFA,but weakened gradually and disappeared two weeks later.Conclusion The residual tumor and inflammation could not be distinguished through enhanced CT scanning within 1 week after RFA.Low intensity lesions with peripheral enhancement 2 weeks after RFA should be recognized as residual tumor.