MRI of brain
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Introduction
see magnetic resonance imaging & MRI neuroimaging
Pathology
- age-related MRI changes correlate with vascular risk present already present earlier in life[3]
- MRI white matter hyperintensities disrupt structural network efficiency[3]
- structural efficiency loss from MRI white matter hyperintensities contributes to cognitive dysfunction in aging[3]
- MRI brain perivascular spaces may be proxy measure of cerebral small vessel disease, glymphatic dysfunction & risk of dementia[2]
- see specific disorder for MRI neuroimaging specifics
Radiology
- fluid-attenuated inversion recovery (FLAIR) sequence
Notes
- incidental findings in 10% of brain MRIs (mean age 65 years)
- meningioma 2.5%, mean size 1.3 cm
- cerebral aneurysms 2.3%. mean size 0.45 cm
- arachnoid cysts 1.6%
- pituitary incidentalomas 1.2%
- nearly all remain stable during follow-up[1]
More general terms
Additional terms
References
- ↑ 1.0 1.1 Bos D, Poels MM, Adams HH et al. Prevalence, clinical management, and natural course of incidental findings on brain MR images: The population-based Rotterdam Scan Study. Radiology 2016 Nov; 281:507 <PubMed> PMID: https://www.ncbi.nlm.nih.gov/pubmed/27337027 <Internet> http://pubs.rsna.org/doi/10.1148/radiol.2016160218
- ↑ 2.0 2.1 Romero JR et al. MRI visible perivascular spaces and risk of incident dementia: The Framingham Heart Study. Neurology 2022 Sep 29; [e-pub]. PMID: https://www.ncbi.nlm.nih.gov/pubmed/36175148 https://n.neurology.org/content/early/2022/09/29/WNL.0000000000201293
- ↑ 3.0 3.1 3.2 3.3 Seiler S, Enzinger C. MRI in older patients-A focused review. Seizure. 2024 Nov 30:S1059-1311(24)00333-9. PMID: https://www.ncbi.nlm.nih.gov/pubmed/39658439 Free article. Review. https://www.seizure-journal.com/article/S1059-1311(24)00333-9/fulltext