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心房細動中の心電図におけるSample entropy
https://repository.lib.tottori-u.ac.jp/records/5876
https://repository.lib.tottori-u.ac.jp/records/58765047ae74-618a-47d5-8023-eb317bc7b5dc
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
本文 : Full Text (1.5 MB)
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要旨 : Summary (502.3 kB)
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審査結果要旨 : Summary of Thesis Review (492.9 kB)
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| Item type | 学位論文 / Thesis or Dissertation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2018-06-22 | |||||
| タイトル | ||||||
| タイトル | 心房細動中の心電図におけるSample entropy | |||||
| 言語 | ja | |||||
| タイトル | ||||||
| タイトル | Sample Entropy in Electrocardiogram During Atrial Fibrillation | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題 | atrial fibrillation | |||||
| キーワード | ||||||
| 主題 | electrocardiogram | |||||
| キーワード | ||||||
| 主題 | sample entropy | |||||
| キーワード | ||||||
| 主題 | time-series data | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題 | atrial fibrillation | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題 | electrocardiogram | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題 | sample entropy | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題 | time-series data | |||||
| 資源タイプ | ||||||
| 資源タイプ | doctoral thesis | |||||
| アクセス権 | ||||||
| アクセス権 | open access | |||||
| 著者 |
堀江, 拓耶
× 堀江, 拓耶× Horie, Takuya |
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| 抄録 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 【Background】 Atrial fibrillation (AF) is an arrhythmia commonly encountered in clinical practice. There is a high risk of thromboembolism in patients with AF. Nonlinear analyses such as electroencephalogram (EEG), electrocardiogram (ECG), and respiratory movement have been used to quantify biological signals, and sample entropy (SampEn) has been employed as a statistical measure to evaluate complex systems. In this study, we examined the values of SampEn in ECG signals for patients with and without AF to measure the regularity and complexity. 【Methods】 ECG signals of lead II were recorded from 34 subjects without arrhythmia and 15 patients with chronic AF in a supine position. The ECG signals were converted into time-series data and SampEn was calculated. 【Results】 The SampEn values for the group without arrhythmia were 0.252 ± 0.114 [time lag (τ) = 1] and 0.533 ± 0.163 (τ = 5), and those for the chronic AF group were 0.392 ± 0.158 (τ = 1) and 0.759 ± 0.246 (τ = 5). The values of SampEn were significantly higher in the group with chronic AF than in the group without arrhythmia (P < 0.01 for τ = 1, P < 0.004 for τ = 5). The constructed three-dimensional vectors were plotted in time-delayed three-dimensional space. We used time lags of τ = 5 and τ = 1. The shape of the loops of the three-dimensional space was better for τ = 5. 【Conclusion】 The values of SampEn from ECG for chronic AF patients were higher than for subjects without arrhythmia, suggesting greater complexity for the time-series from chronic AF patients. SampEn is considered a new index for evaluating complex systems in ECG. | |||||
| 学位名 | ||||||
| 言語 | ja | |||||
| 学位名 | 博士(医学) | |||||
| 学位授与機関 | ||||||
| 学位授与機関識別子Scheme | kakenhi | |||||
| 学位授与機関識別子 | 15101 | |||||
| 言語 | ja | |||||
| 学位授与機関名 | 鳥取大学 | |||||
| 学位授与年月日 | ||||||
| 学位授与年月日 | 2018-03-01 | |||||
| 学位授与番号 | ||||||
| 学位授与番号 | 甲第884号 | |||||
| 権利 | ||||||
| 権利情報 | 注があるものを除き、この著作物は日本国著作権法により保護されています。 | |||||
| 情報源 | ||||||
| 関連名称 | This research was published by Yonago Acta Medica: Takuya Horie, Naoto Burioka, Takashi Amisaki and Eiji Shimizu. Sample Entropy in Electrocardiogram During Atrial Fibrillation. Yonago Acta Medica, 2018, 61, pp.49-57 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://www.lib.tottori-u.ac.jp/yam/yam/yam61-1/61-1contents.html | |||||
| 関連名称 | http://www.lib.tottori-u.ac.jp/yam/yam/yam61-1/61-1contents.html | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
