Robotic Assisted Radio-Frequency Ablation of Liver Tumors – Randomized Patient Study
The minimally invasive treatment of liver tumors represents an alternative to the open surgery approach. Radio-frequency ablation destroys a tumor by delivering radio-frequency energy through a needle probe. Traditionally, the probe is placed manually using imaging feedback. New approaches use robotic devices to accurately place the instrument at the target. The authors developed an image-guided robotic system for percutaneous interventions using computed tomography. The paper presents a randomized patient study comparing the manual versus robotic needle placement for radio-frequency ablation procedures of liver tumors. The results of this study show that in our case robotic interventions were a very viable solution. Several treatment parameters such as radiation exposures and procedure-times were found to be significantly improved in the robotic case.
KeywordsLiver Tumor Needle Placement Surgical Robot Ultrasonic Motor Robot Space
- 1.Chinzei, K., Hata, N., Jolesz, F., Kikinis, R.: Mr compatible surgical assist robot: System integration and preliminary feasibility study. In: Proceedings of Third International Conference on Medical Robotics, Imaging and Computer Assisted Surgery, Pittsburgh, pp. 921–930 (2000)Google Scholar
- 3.Glauser, D., Fankhauser, H., Epitaux, M., Hefti, J.-L., Jaccottet, A.: Neurosurgical robot minerva, first results and current developments. In: Proc. 2nd Int. Symp. on Medical Robotics and Computer Assisted Surgery, MRCAS 1995, Baltimore, Maryland, pp. 24–29 (1995)Google Scholar
- 6.Masamune, K., Ji, L.H., Suzuki, M., Dohi, T., Iseki, H., Takakura, K.: A newly developed stereotactic robot with detachable drive for neurosurgery. In: Wells, W.M., Colchester, A.C.F., Delp, S.L. (eds.) MICCAI 1998. LNCS, vol. 1496, pp. 215–222. Springer, Heidelberg (1998)Google Scholar