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| Presentation | 2017-08-10 10:00 The possibility of Discrimination Whether Intracranial Pressure is Higher or Lower than a Critical Value by the External Auditory Canal Pressure Pulse Waves Kenji Furihata, Tetsuya Goto, Kazuhiro Hongo (Shinshu Univ.), Norio Koike (Ichikawa Ltd.)  EA2017-34 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Noninvasive monitoring of the intracranial pressure (ICP) via the auditory system is theoretically possible because changes in ICP transfer to the inner ear through connections between the cerebral spinal fluid and the cochlear fluids. This paper investigated whether ICP can be assessed by measuring infrasonic emissions from the tympanic membrane for human. The relation between volume and pressure within the cranium is non-linear. The pulse waveform has several harmonic components; the fundamental component has a frequency equal to the heart rate. The amplitude distortion is very useful for the evaluation of various independent factors. As the result of our own discrimination analysis, (a) the presence of a critical ICP value has become clear, the critical ICP is 55 cmH2O. (b) The percentage of correct answers whether is higher than the critical value or lower is 100 %. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Intracranial Pressure / External Auditory Canal Pressure Sensor / Pulse Amplitude Factors / Pulse Spectrum Factors / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 117, no. 170, EA2017-34, pp. 41-46, Aug. 2017. | |
| Paper # | EA2017-34 | |
| Date of Issue | 2017-08-02 (EA) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | EA2017-34 |
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| Conference Information | |
| Committee | EA ASJ-H |
| Conference Date | 2017-08-09 - 2017-08-10 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tohoku Univ., R. I. E. C. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Ultra-Realistic Acoustics, Engineering/Electro Acoustics, Psychological and Physiological Acoustics, and Related Topics |
| Paper Information | |
| Registration To | EA |
| Conference Code | 2017-08-EA-H |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | The possibility of Discrimination Whether Intracranial Pressure is Higher or Lower than a Critical Value by the External Auditory Canal Pressure Pulse Waves |
| Sub Title (in English) | |
| Keyword(1) | Intracranial Pressure |
| Keyword(2) | External Auditory Canal Pressure Sensor |
| Keyword(3) | Pulse Amplitude Factors |
| Keyword(4) | Pulse Spectrum Factors |
| Keyword(5) | |
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| 1st Author's Name | Kenji Furihata |
| 1st Author's Affiliation | Shinshu University (Shinshu Univ.) |
| 2nd Author's Name | Tetsuya Goto |
| 2nd Author's Affiliation | Shinshu University (Shinshu Univ.) |
| 3rd Author's Name | Kazuhiro Hongo |
| 3rd Author's Affiliation | Shinshu University (Shinshu Univ.) |
| 4th Author's Name | Norio Koike |
| 4th Author's Affiliation | Ichikawa Electric Co. Ltd. (Ichikawa Ltd.) |
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| Speaker | Author-1 |
| Date Time | 2017-08-10 10:00:00 |
| Presentation Time | 25 minutes |
| Registration for | EA |
| Paper # | EA2017-34 |
| Volume (vol) | vol.117 |
| Number (no) | no.170 |
| Page | pp.41-46 |
| #Pages | 6 |
| Date of Issue | 2017-08-02 (EA) |
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