Low Dose Ionizing Radiation Using CT Scans as a Potential Therapy for Alzheimer's Dementia: A Pilot Study

Participants will receive the first LDIR treatment in one session on the same day, i.e., two CT scans of the brain that delivers a total X-ray dose (CTDIvol)10 of about 80 mGy. Participants will then be transported back to Baycrest Health Sciences. Participants will receive another LDIR treatment, i.e. a single CT scan of the brain (40 mGy), 2 weeks after the first session. They will receive a third LDIR treatment, i.e., a single CT scan of the brain (40 mGy), 2 weeks after the second session. Date, time and X-ray dose will be recorded for each participant and sent to their family physician for entry into in their health record.