Magnetic resonance imaging in dementia

Radiologia (Engl Ed). 2018 Nov-Dec;60(6):476-484. doi: 10.1016/j.rx.2018.04.003. Epub 2018 Jun 11.
[Article in English, Spanish]


Objective: To describe and illustrate the key findings on structural magnetic resonance imaging (MRI) in the most common dementias of neurodegenerative origin: Alzheimer's disease, vascular dementia, dementia with Lewy bodies, variants of frontotemporal dementia, progressive supranuclear palsy, variants of multiple system atrophy, Parkinson dementia, and corticobasal degeneration.

Conclusion: Today the role of MRI is no longer limited to ruling out underlying causes of cognitive deterioration. MRI can show patterns of atrophy with a predictive value for certain dementias which, although not specific or unique to each disease, can help to confirm diagnostic suspicion or to identify certain processes. For this reason, it is important for radiologists to know the characteristic findings of the most common dementias.

Keywords: Alzheimer's disease; Atrofia; Atrofia multisistémica; Atrophy; Demencia; Demencia frontotemporal; Demencia vascular; Dementia; Enfermedad de Alzheimer; Enfermedad de Parkinson; Frontotemporal dementia; Magnetic resonance imaging; Multiple system atrophy; Parkinson's disease; Parálisis supranuclear progresiva; Progressive supranuclear palsy; Resonancia magnética; Vascular dementia.

MeSH terms

  • Dementia / diagnostic imaging*
  • Humans
  • Magnetic Resonance Imaging*