Fig. 1.
A 41-year-old woman with uterine fibroid who experienced substantial fibroid volume reduction after MR-guided focused ultrasound. (a) Pre-treatment MR elastography images that correspond with the uterus superimposed on conventional MR images; (b) pre-treatment, and (c) post-treatment sagittal T2-weighted images. Her fibroid showed a pre-treatment stiffness value of 7.8 kPa, which was higher than the average of this study. The fibroid volume was reduced by 42% after MR-guided focused ultrasound (pre-treatment volume, 451 cm 3 ; post-treatment volume, 258 cm 3). An oval region of interest (circle), as large in size as possible, was placed on the fibroid by the investigators.