Ultrasound- and MR-guided focused ultrasound surgery for prostate cancer

Figure 1 Magnetic resonance guided focused ultrasound surgery suite at the University of Chicago. A: Magnetic resonance guided focused ultrasound surgery (MRgFUS) probe and phase array; B: Focused picture of MRgFUS phased array transducer.

Figure 2 Magnetic resonance guided focused ultrasound surgery of human prostate. A: Pre-sonification scan, catheter is visible in prostate urethra and transrectal probe is present in the rectum, filled by water. Hypointense focus in the left peripheral zone represents patient`s biopsy proven prostate cancer; B, C: Post-contrast T1-weighted images through prostate demonstrates non-enhancing ablation defect in the left peripheral zone.