Cavernosal nerve functionality evaluation after magnetic resonance imaging-guided transurethral ultrasound treatment of the prostate

Figure 11 Example images of planning, treatment, and histological outcome. A: Coronal MR image of the intra-urethral catheter placement in the canine prostate for treatment planning with the canine in supine position: The ultrasound applicator is forwarded in the penile urethra to the prostate; B: Color-coded axial temperature map overlaid on the corresponding anatomical MR image demonstrates the typical temperature distribution post ultrasound treatment. Proton Resonance Frequency Shift measurements with a FFE-EPI imaging sequence were used for temperature monitoring and control; C: Sagittal temperature map during ultrasound treatment; D: Histological slide of the canine prostate in haematoxylin and eosin staining to evaluate ultrasound treatment effects. MR: Magnetic resonance; FFE: Fast-field echo.