Fig. 4From: MR thermometry-guided ultrasound hyperthermia of user-defined regions using the ExAblate prostate ablation arrayExamples of prescribed regions of treatment (square, elliptical, diagonal, triangular, and rhombic), and corresponding MR thermometry images, acquired during the heating in experiments 1 and 3, showing the flexibility to control the shape of the heated area. Peak temperatures corresponded to recently active focal pointsBack to article page