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Proceedings Paper

Development of a system for MRI-guided thermal therapy of prostate disease with transurethral ultrasound heating applicators (Invited Paper)
Author(s): Rajiv Chopra; Nicole Baker; Vanessa Choy; Michael Bronskill
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Paper 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.

Paper Details

Date Published: 14 April 2005
PDF: 9 pages
Proc. SPIE 5698, Thermal Treatment of Tissue: Energy Delivery and Assessment III, (14 April 2005); doi: 10.1117/12.591081
Show Author Affiliations
Rajiv Chopra, Sunnybrook and Women's College Health Sciences Ctr. (Canada)
Nicole Baker, Sunnybrook and Women's College Health Sciences Ctr. (Canada)
Vanessa Choy, Sunnybrook and Women's College Health Sciences Ctr. (Canada)
Michael Bronskill, Sunnybrook and Women's College Health Sciences Ctr. (Canada)


Published in SPIE Proceedings Vol. 5698:
Thermal Treatment of Tissue: Energy Delivery and Assessment III
Thomas P. Ryan, Editor(s)

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