Dementia
Conditions
Interventions
None listed
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: [Patients Group] 1) >20 and <90 years old 2) MRI examination within one month after obtaining informed consent, or susceptibility weighted images were scanned in past MRI exam. 3) informed consent is obtained after detailed explanation [Control Group] 1) sex and age matched subjects with patients group 2) informed consent is obtained
Exclusion criteria
Exclusion criteria: [Patients Group] (1)metallic implant and other MRI contraindicated objects (2)pregnant female (including possible case) (3)claustrophobia [Control Group] (1)the score of cognitive function test: MMSE<26, and MOCA-J<25 (2)abnormal MR findings or poor image quality due to motion artifact or other causes
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Comparison of the local magnetic susceptibility in quantitative susceptibility mapping (QSM) between Alzheimer's patients and cognitively normal control | — |
Secondary
| Measure | Time frame |
|---|---|
| 1) Comparison of the local magnetic susceptibility in QSM among Alzheimer's disease, dementia with Lewy bodies, frontotemporal dementia, vascular dementia, mild cognitive impairment, and others 2) Comparison of the local cerebral blood flow in arterial spin labelling (ASL) between Alzheimer's patients and control group. 3) Comparison of the local diffusion parameters in diffusion tensor image (DTI) between Alzheimer's patients and control group. 4) Comparison of the local T1 and T2* values in quantitative parametrical mapping between Alzheimer's patients and control group. 5) Correlation between the local magnetic susceptibility and other imaging parameters. 6) Correlation between local magnetic susceptibility, cognitive function test, and blood exams 7) Correlation between local magnetic susceptibility and amyloid deposition in amyloid PET | — |
Countries
Japan
Contacts
Hokkaido University Hospital department of diagnostic and interventional radiology