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September 17, 2025Proceedings on CD-ROM - International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition/Proceedings of the International Society for Magnetic Resonance in Medicine, Scientific Meeting and Exhibition

Ultra-high Resolution in vivo 7T MRI Detects Hippocampal Subfield Iron in Mild Cognitive Impairment and Alzheimer’s Disease

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Authors

RDRoss DunneHTHossein TaghaviPDPhil DiGiacomo

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Overview

Quantitative analysis of iron levels using MRI in patients with Alzheimer’s disease and mild cognitive impairment highlights its potential role in neurodegeneration.

Key Points

  • Increased iron deposition was observed in the hippocampal subfields with worsening disease status, indicating a possible link to Alzheimer's pathology.
  • Quantitative susceptibility mapping revealed elevated R2* and QSM-χ+ in the subiculum-CA1 regions, supporting the role of iron in neurodegeneration.
  • The innovative 7T ultra-high resolution MRI allowed for precise quantification of iron levels in living patients, enhancing its viability as a biomarker.
  • These findings contribute to the emerging view of iron dysregulation as a factor in Alzheimer's disease, calling for further investigation.

Cite This Study

Dunne et al. (2025) studied this question.

synapsesocial.com/papers/68d45b0b31b076d99fa5cf92https://doi.org/10.58530/2025/1785
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 17T GRE Enables Detection of Subiculum Iron Deposits in AD2024
  2. 2Ultra-High Resolution QSM of the Brain Iron Metabolism in the Cognitively Declined Adults at 7T MRI2024
  3. 3Increased susceptibility in the anterior hippocampal dentate gyrus and CA4 region of patients with mild cognitive impairment2025
  4. 4Investigation of Iron Deposition Metabolism in Alzheimer’s Disease in Hippocampal Subregions using QSM-MRI2025
  5. 5Optimized Quantitative Susceptibility Mapping at 7T MRI for Assessing Iron Deposition in Alzheimers Disease2025