Background: In 2015, a patient in hospice with Alzheimer’s disease (AD) was treated with ionizing radiation to her brain
using repeated CT scans. Improvement in cognition, speech, movement, and appetite was observed. These improvements
were so momentous that she was discharged from the hospice to a long-term care home. Based on this case, we conducted a
pilot clinical trial to examine the effect of low-dose ionizing radiation (LDIR) in severe AD.
Objective: To determine whether the previously reported bene