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

Byung Moon Kim, Jae Hyun Cho, Je Hwan Won, Do Yun Lee, Jong Tae Lee, Hyun Cheol Kim, Sung Il Park

Research output: Contribution to journalArticle

1 Citation (Scopus)

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.

Original languageEnglish
Pages (from-to)332-338
Number of pages7
JournalAbdominal Imaging
Volume32
Issue number3
DOIs
Publication statusPublished - 2007 Jun

All Science Journal Classification (ASJC) codes

  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging
  • Gastroenterology
  • Urology

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