Adaptive radiotherapy in muscle invasive urinary bladder cancer – An effective method to reduce the irradiated bowel volume

To evaluate the benefits of adaptive radiotherapy for bladder cancer in decreasing irradiation of small bowel.Five patients with muscle invasive bladder cancer received adaptive radiotherapy to a total dose of 55.8-65 Gy with daily cone-beam computed tomography scanning. The whole bladder was treated to 45-50.4 Gy, followed by a partial bladder boost. The plan of the day was chosen from 3 to 4 pre-planned treatment plans according to the visible...