The MRI guided stereotactic radiotherapy of hepatic lesions with an MRIdian Linac tested in this study will allow:
- to see the tumor target in live with a non-irradiating imaging
- a reduction of the volume of non-tumor liver irradiated at high doses
- An progession of the dose delivered to the tumor lesion to allow tumor control to be increased.
- a new dosimetric plan adapted each day to the new contours to avoid a risk of severe digestive toxicity while ensuring optimal treatment, at an appropriate dose, of the tumor volume.

