Radio-frequency ablation of hepatic metastases: Postprocedural assessment with a US microbubble contrast agent - Early experience

Luígi Solbíatí, S. Nahum Goldberg, Tiziana Ierace, Marína Dellanoce, Tito Livraghi, G. Scott Gazelle

Research output: Contribution to journalArticle

Abstract

PURPOSE: To evaluate contrast agent-enhanced ultrasonography (US) in the detection of untreated tumor after radio-frequency (RF) ablation of hepatic metastases. MATERIALS AND METHODS: Twenty patients with solitary colorectal liver metastases underwent percutaneous RF tumor ablation. Pre- and postablation imaging was performed with nonenhanced and enhanced color and power Doppler US and contrast-enhanced helical computed tomography (CT). Initial follow-up CT and US were performed 24 hours after ablation. The findings at US and CT were compared. RESULTS: Nonenhanced US demonstrated intratumoral signal in 15 of 20 metastases before ablation. This signal increased after contrast agent administration. Contrast-enhanced US performed 24 hours after ablation demonstrated residual foci of enhancement in the tumors, whereas no US signals were seen in any tumor on nonenhanced scans. CT demonstrated small (

Original languageEnglish
Pages (from-to)643-649
Number of pages7
JournalRadiology
Volume211
Issue number3
Publication statusPublished - Jun 1999

Keywords

  • Liver neoplasms, secondary
  • Liver neoplasms, US
  • Radiofrequency (RF) ablation Ultrasound (US), contrast media
  • Ultrasound (US), Doppler studies
  • Ultrasound (US), power Doppler studies

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology

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    Solbíatí, L., Goldberg, S. N., Ierace, T., Dellanoce, M., Livraghi, T., & Gazelle, G. S. (1999). Radio-frequency ablation of hepatic metastases: Postprocedural assessment with a US microbubble contrast agent - Early experience. Radiology, 211(3), 643-649.