MRI guided external beam radiotherapy
• Utrecht, The Netherlands
– 1.5 T MRI, 6 MV linac
• Edmonton, Canada
– 0.2 T MRI, 6 MV linac
– Plan for 0.5 T or 1.0 T MRI
• Sydney Austrialia
– 0.5 T MRI, 6 MV linac
• Viewray, Cleveland, USA
– 0.345 T MRI, 3 Co sources