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[Diagnostic imaging in dementia evaluation].

Steen G Hasselbalch1, Carsten Gyldensted, Leif Hougård Sørensen

  • 1H:S Rigshospitalet, Neurocentret, H:S Hukommelsesklinikken, Arhus Universitetshospital, Arhus Sygehus. steen.hasselbalch@rh.hosp.dk

Ugeskrift for Laeger
|October 13, 2006
PubMed
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Structural brain scans significantly alter dementia diagnoses and treatment plans, particularly by identifying silent cerebrovascular disease (CVD). This supports routine CT scans for dementia evaluation in elderly patients.

Area of Science:

  • Neurology
  • Geriatrics
  • Radiology

Background:

  • Dementia evaluation often requires understanding structural brain changes.
  • The impact of neuroimaging on dementia diagnosis and treatment is an area of ongoing research.

Purpose of the Study:

  • To assess how structural scanning influences dementia diagnosis and treatment strategies.
  • To compare the diagnostic yield of scans in memory clinic versus population-based cohorts.

Main Methods:

  • Retrospective analysis of 336 memory clinic patients' diagnoses with and without scan data.
  • Comparison with prospective data from 137 population-based study participants (The Odense Study).
  • Utilized computed tomography (CT) and magnetic resonance imaging (MRI).

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Main Results:

  • Structural scans changed diagnoses and treatment in 37% and 33% of retrospective memory clinic cases, respectively.
  • Cerebrovascular disease (CVD) was frequently identified, even without overt clinical symptoms.
  • Prospective population data showed a 15% change in diagnosis with scanning.

Conclusions:

  • Structural imaging, particularly CT scans, is valuable in dementia evaluation.
  • Routine scanning aids in identifying conditions like CVD, impacting patient management.
  • No patient group was identified as שלא benefiting from neuroimaging in dementia assessment.