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Altered findings of hepatic arteriography after radiofrequency ablation of hepatocellular carcinoma: comparison of pre-ablation and post-ablation angiograms.

Authors
Kim, BM; Cho, JH; Won, JH; Lee, do Y; Lee, JT; Kim, HC; Park, SI
Citation
Abdominal imaging, 32(3):332-338, 2007
Journal Title
Abdominal imaging
ISSN
0942-89251432-0509
Abstract
OBJECTIVE: To evaluate the altered findings of hepatic arteriography after radiofrequency (RF) ablation of hepatocellular carcinoma which can potentially influence subsequent transcatheter arterial chemoembolization.



MATERIALS AND METHODS: Hepatic arteriograms of 26 index hepatocellular carcinomas in 24 patients treated only by RF ablation (M:F = 22:2, mean age 55 years), in which hepatic arteriography was performed before and after RF ablation, were retrospectively compared for the altered findings.



RESULTS: The altered findings of hepatic arteriography after RF ablation of the hepatocellular carcinoma were arterio-portal shunt (n = 3), periablational enhancement (n = 5), varied caliber of the feeding artery to the index tumor (n = 12) among which eight decreased, and occlusion of an adjacent arterial branch (n = 8). Residual unablated or locally progressed tumor was not detected in post-RF ablation arteriography (n = 5) due to the arterio-portal shunt (n = 2) or the periablational enhancement (n = 3). The possibility of not detecting the residual unablated or locally progressed tumor was higher within 24 weeks after RF ablation (Mann-Whitney test, P = 0.041).



CONCLUSION: The findings of hepatic arteriography are altered after RF ablation, and the altered findings may increase the difficulty in performing super-selective transcatheter arterial chemoembolization due to undetected tumor staining, decreased caliber, or occlusion of the feeding artery.
MeSH terms
AdultAgedAngiography*Carcinoma, Hepatocellular/radiographyCarcinoma, Hepatocellular/surgery*Catheter Ablation*FemaleHumansLiver/blood supply*Liver Neoplasms/radiographyLiver Neoplasms/surgery*MaleMiddle Aged
DOI
10.1007/s00261-006-9059-2
PMID
16933116
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Radiology
Journal Papers > School of Medicine / Graduate School of Medicine > Surgery
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