Percutaneous radiofrequency ablation of hepatocellular carcinoma: Of histologic grade on therapeutic results

Hyun Kim Seong, Hyo K. Lim, Dongil Choi, Jae Lee Won, Hoon Kim Seung, Ju Kim Min, Kyo Kim Chan, Hwan Jeon Yong, Mee Lee Jong, Hyunchul Rhim

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42 Citations (Scopus)

Abstract

OBJECTIVE. The purpose of our study was to assess the therapeutic results of radiofrequency ablation of hepatocellular carcinoma (HCC) based on the histologic grades of the tumors. SUBJECTS AMD METHODS. Between April 1999 and December 2003, 95 patients with nodular HCC were treated with percutaneous radiofrequency ablation. All tumors were histologically proven by sonography-guided percutaneous biopsy and were classified as Edmondson-Steiner grade IHCC (n = 38) (mean, 2.3 cm) (group 1), grade IIHCC (n = 50) (mean, 2.4 cm) (group 2), or grade III HCC (n = 7) (mean, 2.8 cm) (group 3). All patients underwent contrast-enhanced three-phase helical CT examination before and after radiofrequency ablation. After retrospective review of the medical records and follow-up CT examinations, the rates of technique effectiveness, local tumor progression, cumulative survival, and cancer-free survival using a Kaplan-Meier method were calculated and compared among the groups. RESULTS. Technique effectiveness rates in groups 1, 2, and 3 were 87% (27/31), 71% (30/42), and 43% (3/7), respectively, with statistical significance (p = 0.032). Local tumor progression rates in groups 1,2, and 3 were 16% (5/31), 36% (15/42), and 71% (5/7), respectively, with statistical significance (p = 0.013). Five-year cumulative survival rates in groups 1, 2, and 3 were 71%, 44%, and 43%, respectively, with no statistical significance (p > 0.05). Four-year cancer-free survival rates in groups 1, 2, and 3 were 39%, 10%, and 0%, respectively (p < 0.05 for groups 1 vs 2; p > 0.05 for groups 1 vs 3 and groups 2 vs 3). CONCLUSION. The histologic grade of HCC is an important factor influencing therapeutic results with survival after radiofrequency ablation.

Original languageEnglish
Pages (from-to)S327-S333
JournalAmerican Journal of Roentgenology
Volume186
Issue number5 SUPPL.
DOIs
Publication statusPublished - 2006 May

Keywords

  • Ablation
  • Hepatocellular carcinoma
  • Histologic grade
  • Radiofrequency

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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    Seong, H. K., Lim, H. K., Choi, D., Won, J. L., Seung, H. K., Min, J. K., Chan, K. K., Yong, H. J., Jong, M. L., & Rhim, H. (2006). Percutaneous radiofrequency ablation of hepatocellular carcinoma: Of histologic grade on therapeutic results. American Journal of Roentgenology, 186(5 SUPPL.), S327-S333. https://doi.org/10.2214/AJR.05.0350