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アイテム
カラーセンサに基づいた新規システムによる青色光電式容積脈波の評価
https://doi.org/10.18997/00008661
https://doi.org/10.18997/00008661e234360d-786a-45bd-8de8-a042b5ebbfef
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
sei_k_420.pdf (5.7 MB)
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| アイテムタイプ | 学位論文 = Thesis or Dissertation(1) | |||||||
|---|---|---|---|---|---|---|---|---|
| 公開日 | 2021-12-20 | |||||||
| 資源タイプ | ||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_db06 | |||||||
| 資源タイプ | doctoral thesis | |||||||
| タイトル | ||||||||
| タイトル | Evaluation of Blue Photoplethysmography Using a Novel Color Sensor-Based System | |||||||
| 言語 | en | |||||||
| タイトル | ||||||||
| タイトル | カラーセンサに基づいた新規システムによる青色光電式容積脈波の評価 | |||||||
| 言語 | ja | |||||||
| 言語 | ||||||||
| 言語 | eng | |||||||
| 著者 |
Shchelkanova, Evgeniia
× Shchelkanova, Evgeniia
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| 抄録 | ||||||||
| 内容記述タイプ | Abstract | |||||||
| 内容記述 | Neonatal jaundice is one of the most commonly observed transitional processes in newborn infants. Its mild cases usually resolve spontaneously within several days. However, severe jaundice is associated with substantial morbidity and mortality and, therefore, requires immediate treatment. For more than 40 years, blue light phototherapy has been the standard treatment of this condition. It is necessary to continuously assess the well-being of infants receiving the treatment. Conventional monitoring technologies in neonatal care require to attach sensors to the baby, causing discomfort, stress and even skin damage. Remote photoplethysmography （PPG） is an inexpensive and convenient alternative to these methods. However, none of the available PPG devices is designed for PPG signal acquisition in narrow-spectrum blue light. Moreover, in the field of PPG, blue light has been often overlooked for its shallow penetration into tissues. The present work aimed at proving the feasibility of blue PPG for heart rate （HR） monitoring by comparison to commonly used green PPG. In this thesis, a novel PPG acquisition approach was proposed. It is based on a Color Sensor as a photodetector. An equal number of red, green, and blue pixels makes it suitable for these wavelengths comparison. Blue and green PPGs along with reference ECG signals were recorded from palm skin of 12 healthy adults under two skin temperatures: 20°C and 34°C. The green and blue signals were assessed and compared in terms of their amplitudes, signal-to-noise ratio and HR estimation accuracy. In both temperature conditions, the blue signals demonstrated relatively higher amplitudes; SNR was similar to the green PPG. In terms of HR estimation, both blue and green PPGs showed a good consistency with the ECG measured values. In both experimental conditions, there was no significant difference between blue and green PPG accuracies. These results suggest that: 1） blue PPG is suitable for non-contact heart rate estimation; 2） blue PPG can be used as an alternative to green PPG. The signal quality and HR estimation accuracy of the blue PPG were similar to the green PPG. Having an acceptable temperature artifacts resistance, blue PPG can be used in infants with immature ability to maintain a stable body temperature. Therefore, blue PPG could be used for remote baby monitoring during phototherapy. Besides newborn jaundice, blue light is widely used in other phototherapies, like in acne and photodynamic therapy for skin cancer. Incorporating blue-sensitive photodetector into the light-based therapeutic devices could potentially enable cardiovascular parameters acquisition and studying the biological effects of light. | |||||||
| 目次 | ||||||||
| 内容記述タイプ | TableOfContents | |||||||
| 内容記述 | 1 Introduction||2 Related Work||3 Method and Dataset||4 Results and Discussion||5 Conclusion | |||||||
| 備考 | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | 九州工業大学博士学位論文 学位記番号：生工博甲第420号 学位授与年月日：令和3年9月24日 | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Photoplethysmography | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Heartbeat intervals | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Blue light | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Wavelengths comparison | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Color sensor | |||||||
| アドバイザー | ||||||||
| 柴田, 智広 | ||||||||
| 学位授与番号 | ||||||||
| 学位授与番号 | 甲第420号 | |||||||
| 学位名 | ||||||||
| 学位名 | 博士（工学） | |||||||
| 学位授与年月日 | ||||||||
| 学位授与年月日 | 2021-09-24 | |||||||
| 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 | 17104 | |||||||
| 学位授与機関名 | 九州工業大学 | |||||||
| 学位授与年度 | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | 令和3年度 | |||||||
| 出版タイプ | ||||||||
| 出版タイプ | VoR | |||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||
| アクセス権 | ||||||||
| アクセス権 | open access | |||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||
| ID登録 | ||||||||
| ID登録 | 10.18997/00008661 | |||||||
| ID登録タイプ | JaLC | |||||||
