Advanced Skills in Modern Radiotherapy 2018

Prostate – Soft tissue

• Process for CBCT soft tissue match ➢ Manual confirmation of match

1. Change window level to visualise rectum & superior prostate 2. Position superior CTV prostate contour to superior aspect of prostate at junction with bladder 3. Position posterior edge of CTV prostate structure (at mid prostate) to the anterior rectal wall 4. Check inferior CTV prostate structure to inferior edge of prostate, using penile bulb to assist 5. Position lateral edges of CTV prostate to pelvis muscles