| Presentation | 2005-05-13 Improvement of a Five-Band Microwave System for Non-Invasive Measurement of Brain Temperature in Newborn Infants : System Calibration with a Waveguide Antenna and Confidence Interval Shuhei HOSHINO, Yutaka KONO, Hisashi Hirata, Yoshimitsu OKITA, Motohiko KIMURA, Toshifumi SUGIURA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | It has been shown that development of brain damage after perinatal hypoxia-ischemia can be reduced by cooling the brain. Clinical studies of hypothermia call for non-invasive brain temperature measurements over prolonged periods. This paper addresses the improvement of a five-band microwave radiometer system (center frequencies: 1.2, 1.65, 2.3, 3.0, 3.6GHz) and the calibration experiments with a waveguide antenna using a temperature controlled water-bath. Brightness temperature resolutions of the system were 0.165, 0.167, 0.150, 0.133, 0.152℃, respectively. A baby head model was made by adding skin, fat, skull and brain tissues using an outline information based on baby's MRI data and radiometry weighting functions were obtained by the analyses of electromagnetic fields in the brain. Temperature retrieval simulation showed 0.3℃ of 2σ confidence interval at the center of brain (5cm) which was satisfactory for immediate target (former resolution: 1.05℃). |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Microwave radiometer / Non-invasive / Temperature measurement / Confidence interval / Hypoxia-ischaemia |
| Paper # | MBE2005-7 |
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| Conference Information | |
| Committee | MBE |
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| Conference Date | 2005/5/6(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) | Improvement of a Five-Band Microwave System for Non-Invasive Measurement of Brain Temperature in Newborn Infants : System Calibration with a Waveguide Antenna and Confidence Interval |
| Sub Title (in English) | |
| Keyword(1) | Microwave radiometer |
| Keyword(2) | Non-invasive |
| Keyword(3) | Temperature measurement |
| Keyword(4) | Confidence interval |
| Keyword(5) | Hypoxia-ischaemia |
| 1st Author's Name | Shuhei HOSHINO |
| 1st Author's Affiliation | Graduate School of Science and Engineering() |
| 2nd Author's Name | Yutaka KONO |
| 2nd Author's Affiliation | Graduate School of Science and Engineering |
| 3rd Author's Name | Hisashi Hirata |
| 3rd Author's Affiliation | Research Institute of Electronics |
| 4th Author's Name | Yoshimitsu OKITA |
| 4th Author's Affiliation | Graduate School of Electronic Science and Technology |
| 5th Author's Name | Motohiko KIMURA |
| 5th Author's Affiliation | Faculty of Engineering, Shizuoka University |
| 6th Author's Name | Toshifumi SUGIURA |
| 6th Author's Affiliation | Research Institute of Electronics |
| Date | 2005-05-13 |
| Paper # | MBE2005-7 |
| Volume (vol) | vol.105 |
| Number (no) | 46 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |