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Abstract #0526

Preliminary Clinical Results: MR-HIFU Ablation of Uterine Fibroids with Automatic Volumetric Ablation

Charles Mougenot1,2, Julia Enholm3, Nora Frulio4, Max O. Khler3, Herv Trillaud4

1Philips Healthcare, Bordeaux, France; 2IMF laboratory, Bordeaux, France; 3Philips Healthcare, Vantaa, Finland; 4CHU Bordeaux, St Andr Hospital, Bordeaux, France

High Intensity Focused Ultrasound under MR guidance is a non-invasive thermotherapy procedure used for ablation of uterine fibroids. To improve this treatment, a volumetric heating method combined with temperature control was evaluated at St. Andr hospital following good clinical practice and using a Philips MR-HIFU platform. Preliminary results based on 13 clinical cases indicate that large volumetric sonications increase the ablation efficiency by a ratio 35. In addition, temperature control provides a reproducible ablation size with a diameter accuracy of 1mm, which enhances treatment safety. No serious adverse events or skin burns were observed.