technology :: Visualase image-guided thermal therapy

The Visualase Thermal Therapy System (VTT™) utilizes a set of advanced tools and devices to offer the surgeon real-time and controllable directional energy deposition with real-time visualization of the tissue ablation.

VTT, together with an MRI scanner, consists of a small, disposable cooled laser applicator, a powerful diode laser and novel software tools.

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technology :: publications

• A. Carpentie, R. McNichols, RJ Stafford, J. Itcovitz, J.P. Guichard, D. Reizine, S. Delalog, E. Vicot, D. Payen, A. Gowda, B. George, "Real-Time Magnetic Resonance-Guided Laser Thermal Therapy of Focal Metastatic Brain Tumors," Neurosurgery (In Press).
• A. Gowda, A.T. Borne, M. Fox, R. McNichols, R.J. Stafford, K. Ahrar, "Rapid Interstitial Laser Ablation in a Subcutaneous Tumor Model," Scientific Presentation at 2007 Radiological Society of North America, Chicago.
• K. Ahrar, J. Sanaz, R.J. Stafford, J. Ahrar, A. Gowda, R. McNichols, "Principles of Laser Induced Thermal Therapy," Educational Exhibit at 2007 Radiological Society of North Americal, Chicago, IL.
• R. J. McNichols, A. Gowda, M.D. Gelnett, R.J. Stafford, "Percutaneous MRI-guided laser thermal therapy in canine prostate" Proceedings of the SPIE Vol. 5686, p. 214-225, 2005
• M. Kangasniemi, R.J. McNichols, J.A. Bankson, A. Gowda, R.E. Price, and J.D. Hazle, "Thermal Therapy of Canine Cerebral Tumors Using a 980nm Diode Laser with MR Temperature-Sensitive Feedback." Lasers in Surgery and Medicine, Vol. 35:41-50. 2004
• R.J. Stafford, R.J. McNichols, A. Gowda, R.E. Price, and J.D. Hazle, "Evaluation of a Prototype MR-guided Laser Induced Thermal Therapy Device for Prostate Ablation." Presented at 46th Annual Meeting of the American Association of Physicists in Medicine, Pittsburgh, PA, July 25-29, 2004
• R.J. McNichols, A. Gowda, R.J. Stafford, R.E. Price, and J.D. Hazle, "MRI-Guidance and Computer Control of Laser Intersitial Thermal Therapy" Presented at the International Congress of Hyperthermic Oncology, St. Louis, MO, April 21, 2004 (Invited Presentation)
• R.J. McNichols and A. Gowda "Cooled Applicator For Interstitial Laser Therapy Of Prostate" 24th annual ASLMS. Dallas Texas. March 31-April 4, 2004.
• R.J. McNichols, M. Kangasniemi, A. Gowda, J.A. Bankson, R.E. Price, and J.D. Hazle, "Technical developments for cerebral thermal treatment: Water-cooled diffusing tip laser fibres and MR thermal imaging in two intersecting planes." International Journal of Hyperthermia, Vol. 20(1):729-40. 2004
• R.J. McNichols, A. Gowda, M. Kangasniemi, J.A. Bankson, R.E. Price, and J.D. Hazle, "MR Thermometry Based Feedback Control of Laser Interstitial Thermal Therapy at 980nm" Lasers in Surgery and Medicine. Vol. 34:48-55. 2004
• R.J. McNichols, A. Gowda, R.J. Stafford, R.E. Price, and J.D. Hazle, "MRI-guided thermal therapy in the prostate: Preliminary results." Proceedings of the SPIE, Vol. 5312, p. 94-104, 2004.
• R.J. McNichols, A. Gowda, K. Ahrar, R.J. Stafford, R.E. Price, and J.D. Hazle, "Feasibility of percutaneous vertebroplasty with MR-guided laser ablation." Proceedings of the SPIE, Vol. 5312, p. 433-444, 2004
• R.J. McNichols, A. Gowda, M. Kangasniemi, J.A. Bankson, R.E. Price, and J.D. Hazle, "Computer-controlled Production of Intracranial Lesions using Magnetic Resonance Thermometry." SPIE-BIOS. January 27, 2003, San Jose, CA
• M. Kangasneimi, J.A. Bankson, R.J. McNichols, A. Gowda, R.E. Price, and J.D. Hazle, "Thermal Ablation of Canine Cerebral Tumors Using 980nm Diode Laser with MRTI-based Power Control Software," Presented at 10th Scientific Meeting of the ISMRM. Honolulu, Hawaii, May 18-24, 2002.
• R.J. McNichols, A. Gowda, and S.M.Wright. "Closed-Loop Feedback Control of Laser Therapy using Magnetic Resonance Imaging," Proceedings of the SPIE. San José, California. February 2001.
• R.J. McNichols, A. Gowda, and S.M.Wright. "MR-Guided Feedback Control of Laser Thermal Therapy" Proceedings of the ISMRM. Denver, Colorado, April, 2000