Fig. 6From: MR thermometry-guided ultrasound hyperthermia of user-defined regions using the ExAblate prostate ablation arrayCoronal MR thermometry images used for beam control (upper row) from different time points during the experiment, and axial images (lower row) used for near-field monitoring, acquired during experiment 4. The labels show the time from the heating start (focused ultrasound power on). Flow artifacts within the water surrounding the phantom and in the balloon surrounding the transducer did not affect image quality within the phantomBack to article page