The treatment takes place while you are lying in an MRI system. But before entering the MRI, your head will be shaved and cleaned. You will be given a local numbing medication and an immobilizing frame will be secured to your head, to keep you from moving during the treatment. This will likely be the most uncomfortable part of the procedure.
You will have a urinary catheter placed to drain your bladder during the procedure, so you won’t have to go to the bathroom. Your heart rate, blood pressure and blood oxygen levels will be monitored throughout the procedure. You will then lie on the treatment bed which will move in and out of the MRI system. You may be given additional medication to keep you comfortable. You will be conscious, communicating with the physician and nurses throughout the treatment.