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Using the Disease State Fingerprint Tool for Differential Diagnosis of Frontotemporal Dementia and Alzheimer's Disease
Univ Eastern Finland, Inst Clin Med, Neurol, Kuopio, Finland..
Univ Eastern Finland, Inst Clin Med, Neurol, Kuopio, Finland..
VTT Tech Res Ctr Finland, Tampere, Finland..
VTT Tech Res Ctr Finland, Tampere, Finland..
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2016 (English)In: Dementia and geriatric cognitive disorders extra, E-ISSN 1664-5464, Vol. 6, no 2, 313-329 p.Article in journal (Refereed) Published
Abstract [en]

Background: Disease State Index (DSI) and its visualization, Disease State Fingerprint (DSF), form a computer-assisted clinical decision making tool that combines patient data and compares them with cases with known outcomes. Aims: To investigate the ability of the DSI to diagnose frontotemporal dementia (FTD) and Alzheimer's disease (AD). Methods: The study cohort consisted of 38 patients with FTD, 57 with AD and 22 controls. Autopsy verification of FTD with TDP-43 positive pathology was available for 14 and AD pathology for 12 cases. We utilized data from neuropsychological tests, volumetric magnetic resonance imaging, single-photon emission tomography, cerebrospinal fluid biomarkers and the APOE genotype. The DSI classification results were calculated with a combination of leave-one-out cross-validation and bootstrapping. A DSF visualization of a FTD patient is presented as an example. Results: The DSI distinguishes controls from FTD (area under the receiver-operator curve, AUC = 0.99) and AD (AUC = 1.00) very well and achieves a good differential diagnosis between AD and FTD (AUC = 0.89). In subsamples of autopsy-confirmed cases (AUC = 0.97) and clinically diagnosed cases (AUC = 0.94), differential diagnosis of AD and FTD performs very well. Conclusions: DSI is a promising computer-assisted biomarker approach for aiding in the diagnostic process of dementing diseases. Here, DSI separates controls from dementia and differentiates between AD and FTD.

Place, publisher, year, edition, pages
2016. Vol. 6, no 2, 313-329 p.
Keyword [en]
Alzheimer's disease, Frontotemporal dementia, Computer-assisted diagnosis, Magnetic resonance imaging, Neuropsychology, Single-photon emission tomography
National Category
Neurology
Identifiers
URN: urn:nbn:se:uu:diva-305956DOI: 10.1159/000447122ISI: 000384151900017OAI: oai:DiVA.org:uu-305956DiVA: diva2:1043908
Funder
EU, FP7, Seventh Framework Programme
Available from: 2016-11-01 Created: 2016-10-24 Last updated: 2016-11-01Bibliographically approved

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Alafuzoff, Irina
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Experimental and Clinical Oncology
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