[The aging of the brain studied with PET, MRI and X-ray CT].
D000368:Aged; D000375:Aging / Q000473:pathology*; D001284:Atrophy; D001921:Brain / Q000378:metabolism / Q000473:pathology*; D003337:Corpus Callosum / Q000473:pathology; D005260:Female; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D008875:Middle Aged; D010101:Oxygen Consumption; D014055:Tomography, Emission-Computed; D014057:Tomography, X-Ray Computed