Bradford Dickerson, MD from Massachusetts General Hospital / Harvard Medical School, Boston, MA discusses a presentation which focussed on comparing MRIs and PET scans in terms of what they allow us to measure in Alzheimer’s disease patients. Dr Dickerson also explains what experts are hoping these comparisons will help them to understand. This interview was recorded at the 2017 Alzheimer’s Association International Conference (AAIC) held in London, UK.