Development of a system for MRI-guided thermal therapy of prostate disease with transurethral ultrasound heating applicators

Rajiv Chopra; Nicole Baker; Vanessa Choy; Michael Bronskill

doi:10.1117/12.591081

14 April 2005 Development of a system for MRI-guided thermal therapy of prostate disease with transurethral ultrasound heating applicators (Invited Paper)

Rajiv Chopra, Nicole Baker, Vanessa Choy, Michael Bronskill

Author Affiliations +

Proceedings Volume 5698, Thermal Treatment of Tissue: Energy Delivery and Assessment III; (2005) https://doi.org/10.1117/12.591081
Event: SPIE BiOS, 2005, San Jose, CA, United States

Abstract

A system for performing MRI-guided transurethral prostate thermal therapy has been developed. Ultrasound energy is delivered from a multi-element heating applicator incorporating single or dual-frequency planar transducers. The heating applicators produce a directional heating pattern, and have the capability to generate an arbitrary three-dimensional thermal damage pattern in tissue. The delivery system includes five independent channels, each capable of producing up to 50W of RF power. An MRI-compatible motor has also been developed to control the rotation of the heating applicator inside the bore of a clinical 1.5T MR scanner. The capability to perform quantitative thermometry during heating with these heating applicators has been evaluated in a thermal gel material (TGM) developed in our lab with tissue-mimicking ultrasound and thermal properties.

Citation Download Citation

Rajiv Chopra, Nicole Baker, Vanessa Choy, and Michael Bronskill "Development of a system for MRI-guided thermal therapy of prostate disease with transurethral ultrasound heating applicators (Invited Paper)", Proc. SPIE 5698, Thermal Treatment of Tissue: Energy Delivery and Assessment III, (14 April 2005); https://doi.org/10.1117/12.591081

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