Fig. 2
From: Classification of the primary progressive aphasias: principles and review of progress since 2011
Metabolic patterns in LV. a Patient with LV PPA and a pattern characteristic of left hemisphere-dominant Alzheimer’s disease. This would correspond to cluster 1a. b Patient with LV PPA and a much more restricted pattern of hypometabolism. This would correspond to cluster 1b. The Z maps are calculated by comparing the individual glucose metabolic pattern to the normal age-matched control database using commercial MIMVISTA software (MIM Software Inc., Cleveland, OH, USA), with a range between 50 and 80 years