Technical note: can resting state functional MRI assist in routine clinical diagnosis?

Harman, Paula and Law, Christine and Pardhan, Shahina and Lin, ZhiHao Henry and Johnson, Mark and Walter, Silke and Fassbender, Klaus and Aspinall, Richard and Grunwald, Iris Q. (2018) Technical note: can resting state functional MRI assist in routine clinical diagnosis? BJR Case Reports, 4 (4). p. 20180030. ISSN 2055-7159

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Despite some differences in clinical presentation, it is often difficult to differentiate between dementia with Lewy bodies (DLB), clinical Alzheimer’s dementia (AD) and Parkinson’s disease dementia. However, differentiation can be crucial, especially as patients with DLB characteristically have a hypersensitivity to most antiemetic and neuroleptic drugs as they affect the cholinergic and dopaminergic system, potentially leading to life-threatening catatonia, loss of cognitive function and muscle rigidity. The aim of this study is to evaluate if resting state (RS) functional MRI (fMRI) can be used in routine practice on a 1.5 T scanner to differentiate between AD and DLB on an individual basis. We age- and gender-matched a known DLB patient with an AD patient and a human control (HC). Individual independent component analysis was carried out. Region of interest seeds were chosen from the midcingulate and insula regions. Functional connectivity from insula to midcingulate and within the midcingulate network (part of the Salience network) was lower in DLB than AD or HC. RS-fMRI on a 1.5 T scanner, in a routine clinical setting, detected abnormal functional connectivity patterns and allowed differentiation of DLB and AD in a routine clinical setting. This is the first evaluation of RS-fMRI in a routine clinical setting. It shows that incorporating RS-fMRI into the clinical scanning protocol can assist in early diagnosis and likely assist in monitoring the natural history of the disease or disease modifying treatments.

Item Type: Journal Article
Faculty: ARCHIVED Faculty of Medical Science (until September 2018)
Depositing User: Ian Walker
Date Deposited: 14 Nov 2018 16:05
Last Modified: 09 Sep 2021 18:56

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