| Presentation | 2011-11-24 Estimation of fetal vector electrocardiography through blind source separation Yuji NABESHIMA, Yoshitaka KIMURA, Takuya ITO, Naoaki SATO, Akihiro KARASHIMA, Norihiro KATAYAMA, Mitsuyuki NAKAO, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Electrocardiograph (ECG) could be modeled as a rotating vector (heartvector) representing spatio-temporal electrical activity of myocardial muscle to some precision. In this case, ECG is a projection of the heart vector on some subspace spanned by recording electrodes. Independent component analysis (ICA) has recently been employed to extract the fetal ECG from maternal abdominal composite signals. When ICA is applied to a vector source, it should separate the vector source into mutually uncorrelated signals up to an order of the spatial dimension. However, due to non-stationary factors including movements of maternal abdominal surface and fetus and contamination of noise and electromyogram, only a single component might be extracted. Here, we propose a method for re-constructing vector ECG even in this situation. Through simulations and application to actual data, the validity of our method is examined. It is suggested that our method could detect alternation of ECG waveform caused by pathological factors. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Fetus / Electrocardiogram / Blind source separation |
| Paper # | MBE2011-59 |
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| Conference Information | |
| Committee | MBE |
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| Conference Date | 2011/11/17(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | ME and Bio Cybernetics (MBE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Estimation of fetal vector electrocardiography through blind source separation |
| Sub Title (in English) | |
| Keyword(1) | Fetus |
| Keyword(2) | Electrocardiogram |
| Keyword(3) | Blind source separation |
| 1st Author's Name | Yuji NABESHIMA |
| 1st Author's Affiliation | Graduate School of information Sciences, Tohoku University() |
| 2nd Author's Name | Yoshitaka KIMURA |
| 2nd Author's Affiliation | Graduate School of information Sciences, Tohoku University |
| 3rd Author's Name | Takuya ITO |
| 3rd Author's Affiliation | Graduate School of information Sciences, Tohoku University |
| 4th Author's Name | Naoaki SATO |
| 4th Author's Affiliation | Graduate School of information Sciences, Tohoku University |
| 5th Author's Name | Akihiro KARASHIMA |
| 5th Author's Affiliation | Graduate School of information Sciences, Tohoku University |
| 6th Author's Name | Norihiro KATAYAMA |
| 6th Author's Affiliation | Graduate School of information Sciences, Tohoku University |
| 7th Author's Name | Mitsuyuki NAKAO |
| 7th Author's Affiliation | Graduate School of information Sciences, Tohoku University |
| Date | 2011-11-24 |
| Paper # | MBE2011-59 |
| Volume (vol) | vol.111 |
| Number (no) | 314 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |