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Abstract #0264

T2-Based Temperature Monitoring in Abdominal Fat during HIFU Treatment of Patients with Uterine Fibroids

Eugene Ozhinsky 1 , Maureen Kohi 1 , and Viola Rieke 1

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

In this study, we have implemented T2-based monitoring of near-field heating in patients, undergoing HIFU ablation of uterine fibroids using Insightec ExAblate system. In certain areas, near-field heating can reach 18C and the tissue may experience sustained heating of more than 10C for the period of 2 hours or more. This indicates a cumulative thermal dose that may cause necrosis. Our results show the feasibility and importance of measurement of near-field heating in subcutaneous fat.

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