Scientific article
Open access

Image-guided multipolar radiofrequency ablation of liver tumours: initial clinical results

Published inEuropean radiology, vol. 17, no. 9, p. 2253-2261
  • Open Access - Licence nationale Springer
Publication date2007

The local effectiveness and clinical usefulness of multipolar radiofrequency (RF) ablation of liver tumours was evaluated. Sixty-eight image-guided RF sessions were performed using a multipolar device with bipolar electrodes in 53 patients. There were 45 hepatocellular carcinomas (HCC) and 42 metastases with a diameter < or =3 cm (n = 55), 3.1-5 cm (n = 29) and >5 cm (n = 3); 26 nodules were within 5 mm from large vessels. Local effectiveness and complications were evaluated after RF procedures. Mean follow-up was 17 +/- 10 months. Recurrence and survival rates were analysed by the Kaplan-Meier method. The primary and secondary technical effectiveness rate was 82% and 95%, respectively. The major and minor complication rate was 2.9%, respectively. The local tumour progression at 1- and 2-years was 5% and 9% for HCC nodules and 17% and 31% for metastases, respectively; four of 26 nodules (15%) close to vessels showed local progression. The survival at 1 year and 2 years was 97% and 90% for HCC and 84% and 68% for metastases, respectively. Multipolar RF technique creates ablation zones of adequate size and tailored shape and is effective to treat most liver tumours, including those close to major hepatic vessels.

  • Adolescent
  • Adult
  • Aged
  • Aged, 80 and over
  • Carcinoma, Hepatocellular/surgery
  • Catheter Ablation/methods
  • Contrast Media
  • Disease Progression
  • Female
  • Humans
  • Liver Neoplasms/secondary/surgery
  • Magnetic Resonance Imaging, Interventional
  • Male
  • Middle Aged
  • Neoplasm Recurrence, Local
  • Postoperative Complications
  • Radiography, Interventional
  • Statistics, Nonparametric
  • Survival Rate
  • Treatment Outcome
Citation (ISO format)
TERRAZ, Sylvain et al. Image-guided multipolar radiofrequency ablation of liver tumours: initial clinical results. In: European radiology, 2007, vol. 17, n° 9, p. 2253–2261. doi: 10.1007/s00330-007-0626-x
Main files (1)
Article (Published version)
ISSN of the journal0938-7994

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