A prototype ultrasound-guided laparoscopic radiofrequency ablation system

P. Bao, T. K. Sinha, C. C.R. Chen, J. R. Warmath, R. L. Galloway, A. J. Herline

Research output: Contribution to journalArticlepeer-review

28 Scopus citations


Background: Advanced laparoscopic procedures, particularly laparoscopic liver resection and ablation, may benefit from image-guided surgery techniques that involve interactive three-dimensional imaging and instrument tracking. Methods: A prototype system for laparoscopic ultrasound-guided radiofrequency ablation was designed and implemented. This system uses an infrared camera to track instruments and runs on a personal computer. Features of the system include spatially registered ultrasound visualization, volume reconstruction, and interactive targeting. Targeting of accuracy studies was performed by directing a tracked needle to a phantom target. Results: Ultrasound data collection and volume reconstruction can be achieved within minutes and interactively reviewed by the surgeon. Early results with phantom experiments demonstrate a targeting accuracy of 5 to 10 mm. Conclusions: These results support the further development of this and similar image-guided surgery systems for specific laparoscopic procedures. Eventually, rigorous clinical evaluation will be necessary to prove their value.

Original languageEnglish (US)
Pages (from-to)74-79
Number of pages6
JournalSurgical Endoscopy and Other Interventional Techniques
Issue number1
StatePublished - Jan 2007
Externally publishedYes


  • Ablation
  • Image-guided
  • Laparoscopic
  • Liver
  • Radiofrequency
  • Ultrasound

ASJC Scopus subject areas

  • Surgery


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