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Exploring the Potential Imaging Biomarkers for Parkinson's Disease Using Machine Learning Approach
Journal article   Open access   Peer reviewed

Exploring the Potential Imaging Biomarkers for Parkinson's Disease Using Machine Learning Approach

Illia Mushta, Sulev Koks, Anton Popov and Oleksandr Lysenko
Bioengineering (Basel), Vol.12(1), 11
2024
PMID: 39851285
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Open Access CC BY V4.0

Abstract

AdaBoost basal ganglia classification machine learning DATSCAN Parkinson’s disease
Parkinson's disease (PD) is a neurodegenerative disorder characterized by motor and neuropsychiatric symptoms resulting from the loss of dopamine-producing neurons in the substantia nigra pars compacta (SNc). Dopamine transporter scan (DATSCAN), based on single-photon emission computed tomography (SPECT), is commonly used to evaluate the loss of dopaminergic neurons in the striatum. This study aims to identify a biomarker from DATSCAN images and develop a machine learning (ML) algorithm for PD diagnosis. Using 13 DATSCAN-derived parameters and patient handedness from 1309 individuals in the Parkinson's Progression Markers Initiative (PPMI) database, we trained an AdaBoost classifier, achieving an accuracy of 98.88% and an area under the receiver operating characteristic (ROC) curve of 99.81%. To ensure interpretability, we applied the local interpretable model-agnostic explainer (LIME), identifying contralateral putamen SBR as the most predictive feature for distinguishing PD from healthy controls. By focusing on a single biomarker, our approach simplifies PD diagnosis, integrates seamlessly into clinical workflows, and provides interpretable, actionable insights. Although DATSCAN has limitations in detecting early-stage PD, our study demonstrates the potential of ML to enhance diagnostic precision, contributing to improved clinical decision-making and patient outcomes.

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1 Clinical & Life Sciences
1.235 Throat & Voice Disorders
1.235.1185 Voice Disorders
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Biotechnology & Applied Microbiology
Engineering, Biomedical
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