VX2 carcinoma in rabbits after radiofrequency ablation: Differentiating residual tumor from inflammation using enhanced CT versus histopathology
- VernacularTitle:兔肝VX2肿瘤RFA后残余瘤与炎症的鉴别:CT与病理对照
- Author:
Xitong ZHANG
;
Yue WU
;
Jing LIU
;
Wei ZHUANG
;
Haiwei LI
;
Lei WANG
;
Qinghong SONG
;
Ke XU
- Publication Type:Journal Article
- Keywords:
Liver neoplasms;
Radiofrequency ablation;
Inflammation;
Tomography,X-ray computed
- From:
Chinese Journal of Interventional Imaging and Therapy
2009;6(6):559-562
- CountryChina
- Language:Chinese
-
Abstract:
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.
