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Prostate cancer: MR imaging and thermometry during microwave thermal ablation-initial experience
J C Chen1, J A Moriarty, J A Derbyshire
1Department of Medical Imaging, Toronto Hospital and the University of Toronto, Ontario, Canada.
Radiology
|January 22, 2000
Abstract:
Percutaneous interstitial microwave thermoablation of locally recurrent prostate carcinoma was continually guided with magnetic resonance (MR) imaging. Phase images and data were obtained with a rapid gradient-echo technique and were used to derive tissue temperature change on the basis of proton-resonance shift. Thermally devitalized regions correlated well with the phase image findings. MR imaging-derived temperatures were linearly related to the fluoroptic tissue temperatures. MR imaging can be used to guide thermoablation.