Evaluation of machine learning methods to stroke outcome prediction using a nationwide disease registry.

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ID: 95272
2020
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Ranked #23 of 70 articles by views in computer methods and programs in biomedicine

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Abstract
Being able to predict functional outcomes after a stroke is highly desirable for clinicians. This allows clinicians to set reasonable goals with patients and relatives, and to reach shared after-care decisions for recovery or rehabilitation. The aim of this study was to apply various machine learning (ML) methods for 90-day stroke outcome predictions, using a nationwide disease registry.This study used the Taiwan Stroke Registry (TSR) which has prospectively collected data from stroke patients since 2006. Three known ML models (support vector machine, random forest, and artificial neural network), and a hybrid artificial neural network were implemented and evaluated by 10-time repeated hold-out with 10-fold cross-validation.ML techniques present over 0.94 AUC in both ischemic and hemorrhagic stroke using preadmission and inpatient data. By adding follow-up data, the prediction ability improved to 0.97 AUC. We screened 206 clinical variables to identify 17 important features from the ischemic stroke dataset and 22 features from the hemorrhagic stroke dataset without losing much performance. Error analysis revealed that most prediction errors come from more severe stroke patients.The study showed that ML techniques trained from large, cross-reginal registry datasets were able to predict functional outcome after stroke with high accuracy. The follow-up data is important which can further improve the predictive models' performance. With similar performances among different ML techniques, the algorithm's characteristics and performance on severe stroke patients will be the primary focus when we further develop inference models and artificial intelligence tools for potential medical.
Reference Key
lin2020evaluationcomputer Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Lin, Ching-Heng;Hsu, Kai-Cheng;Johnson, Kory R;Fann, Yang C;Tsai, Chon-Haw;Sun, Yu;Lien, Li-Ming;Chang, Wei-Lun;Chen, Po-Lin;Lin, Cheng-Li;Hsu, Chung Y;, ;
Journal computer methods and programs in biomedicine
Year 2020
DOI
S0169-2607(19)31436-1
URL
Keywords
Machine learning ischemic stroke hemorrhagic stroke stroke outcome

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