Fig. 4.

(a, b) dose distribution curves of Patient 8. We first followed the Manchester plan (a) and administered treatment to the patient. After treatment, we modified the Manchester plan and followed the IBICBT plan (b). HR CTV (black line) could not be covered by the prescribed isodose line (white broken line) in the Manchester plan (a). In the IBICBT plan, we extended the dwell time of the right ovoid applicator and enhanced the right side of HR CTV (white broken line). However, we compromised at this point to maintain the maximally irradiated 2 cm³ volume for the bladder within tolerable levels.