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Adv. Signal Process."],"abstract":"<jats:title>Abstract<\/jats:title><jats:sec>\n                <jats:title>Background and objective<\/jats:title>\n                <jats:p>Sudden cardiac death (SCD) is one of the leading causes of death in cardiovascular diseases. Monitoring the state of the heart in real time and giving early warning of possible dangers by using ambulate electrocardiogram signals are the keys to prevent cardiovascular death. However, due to the diversity inducing factors of SCD and great individual differences, accurate prediction of SCD using electrocardiogram is a hard task, especially applied in portable electrocardiograph.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Methods<\/jats:title>\n                <jats:p>This paper proposed a multi-domain features fusion algorithm to predict SCD. Heart rate variability (HRV) signals was used to investigate the characters of SCD. A multiscale variation feature extracted from multiscale poincare plots was proposed to demonstrate the dynamic changes of HRV along different scales. A time-domain feature, Shannon entropy and this multiscale variation feature were combined by using SVM classifier to classify SCD. HRV signals from different time periods prior to SCD onset were used to test the effectiveness of the SCD prediction algorithm. And the dynamic variation characteristics of SCD prediction accuracy for each minute were also studied.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Results<\/jats:title>\n                <jats:p>In the prediction of SCD using the 70-min HRV signals before the onset of SCD, the average prediction accuracy only using the multiscale variation feature reached to 85.83%, which verified the effectiveness and high specificity of this multiscale variation feature. By combining time domain, Shannon entropy and the multiscale variation feature, the average prediction accuracy was improved to 91.22%. Through fusing multi-domain feature extracted in this paper, the advance prediction time was increased to 70\u00a0min before the onset of SCD.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusions<\/jats:title>\n                <jats:p>A feature with high sensitivity and specificity is proposed to predict SCD. By fusing multi-domain features of HRV signals, a high prediction accuracy is achieved and the advance prediction ability is improved. The algorithm is low computational complexity and easy to integrate into cardiovascular intelligent monitoring equipment, making the intelligent monitoring and real-time early warning of SCD becomes possible.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1186\/s13634-023-00992-6","type":"journal-article","created":{"date-parts":[[2023,4,6]],"date-time":"2023-04-06T00:20:31Z","timestamp":1680740431000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Intelligent prediction of sudden cardiac death based on multi-domain feature fusion of heart rate variability signals"],"prefix":"10.1186","volume":"2023","author":[{"given":"Jianli","family":"Yang","sequence":"first","affiliation":[]},{"given":"Zhiqiang","family":"Sun","sequence":"additional","affiliation":[]},{"given":"Weiwei","family":"Zhu","sequence":"additional","affiliation":[]},{"given":"Peng","family":"Xiong","sequence":"additional","affiliation":[]},{"given":"Haiman","family":"Du","sequence":"additional","affiliation":[]},{"given":"Xiuling","family":"Liu","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2023,3,7]]},"reference":[{"key":"992_CR1","doi-asserted-by":"publisher","DOI":"10.15761\/TR.1000105c","author":"E Ebrahimzadeh","year":"2018","unstructured":"E. 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