Comment on Hunt et al, “Feasibility of magnetic resonance guided radiotherapy for the treatment of bladder cancer”

• Bladder cancer patients who are unsuitable for standard radical treatments present a large unfulfilled clinical need. • Hypofractionated RT can be an appropriate solution for these patients; however organ movement and changes in bladder filling is important obstacle for such treatment strategies. • The only way to overcome this obstacle is that using online adaptive image-guided RT. • There is need of new studies evaluating the role of MRgRT for bladder cancer patients.