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Abstract #3606

T2-based Temperature Monitoring in Bone Marrow for MR-guided Focused Ultrasound

Eugene Ozhinsky1, Matthew D. Bucknor1, and Viola Rieke1

1Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, United States

Current clinical protocols for bone treatments rely on measurement of the temperature change of adjacent muscle to estimate the temperature of the bone. In this study we have demonstrated for the first time that T2-based thermometry can be used in vivo to measure the heating in the marrow during bone ablation. The ability to monitor the temperature within the bone marrow allowed visualization of the heat penetration into the bone, which is important for local lesion control and treatment of osteoid osteomas.

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