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KMID : 1100520230290020132
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Healthcare Informatics Research
2023 Volume.29 No. 2 p.132 ~ p.144
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Standardized Database of 12-Lead Electrocardiograms with a Common Standard for the Promotion of Cardiovascular Research: KURIAS-ECG
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Yoo Hak-Je
Yum Yun-Jin
Park Soo-Wan
Lee Jeong-Moon
Jang Moon-Joung
Kim Yoo-Joong
Kim Jong-Ho
Parl Hyun-Joon
Park Jae-Hyoung
Joo Hyung-Joon
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Abstract
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Objectives: Electrocardiography (ECG)-based diagnosis by experts cannot maintain uniform quality because individual differencesmay occur. Previous public databases can be used for clinical studies, but there is no common standard that wouldallow databases to be combined. For this reason, it is difficult to conduct research that derives results by combining databases.
Recent commercial ECG machines offer diagnoses similar to those of a physician. Therefore, the purpose of this study was toconstruct a standardized ECG database using computerized diagnoses.
Methods: The constructed database was standardizedusing Systematized Nomenclature of Medicine Clinical Terms (SNOMED CT) and Observational Medical Outcomes Partnership?common data model (OMOP-CDM), and data were then categorized into 10 groups based on the Minnesota classification.
In addition, to extract high-quality waveforms, poor-quality ECGs were removed, and database bias was minimizedby extracting at least 2,000 cases for each group. To check database quality, the difference in baseline displacement accordingto whether poor ECGs were removed was analyzed, and the usefulness of the database was verified with seven classificationmodels using waveforms.
Results: The standardized KURIAS-ECG database consists of high-quality ECGs from 13,862 patients,with about 20,000 data points, making it possible to obtain more than 2,000 for each Minnesota classification. An artificialintelligence classification model using the data extracted through SNOMED-CT showed an average accuracy of 88.03%.
Conclusions: The KURIAS-ECG database contains standardized ECG data extracted from various machines. The proposedprotocol should promote cardiovascular disease research using big data and artificial intelligence.
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KEYWORD
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Electrocardiograms, Database, Biological Ontologies, Artificial Intelligence, Cardiovascular Diseases
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