Faculty Profiles - NAKAMURA Takao

MISC - NAKAMURA Takao

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Measurement of neck electrical impedance and evaluation of swallowing function Invited

中村隆夫, 楠原俊昌, 山本尚武

日本バイオレオロジー学会誌(B&R) 第19巻、3号、pp.10-18 ( 3 ) 116 - 124 2005

臨床における生体計測のための皮膚インピーダンス標準化モデル

白井喜代子, 山本尚武, 中村隆夫, 楠原俊昌

岡山県母性衛生 ( 21 ) 2005

A High Time Resolution Measurement System for Bioimpedance Analysis in Biodynamics

NAKAMURA Takao, KUSUHARA Toshimasa, YAMAMOTO Yoshitake

IEICE technical report. ME and bio cybernetics 104 ( 179 ) 9 - 12 2004.7

Language：Japanese Publisher：The Institute of Electronics, Information and Communication Engineers

In order to analyze impedance parameters in biodynamics, the measurement of frequency characteristics with a high time resolution are required. Therefore we have developed a measurement system for impedance with time resolution of 1 ms. A voltage E_A, which consisted of basic wave and 9 kinds of harmonic wave from 1 kHz to 1 MHz, were converted to current. The current flowed through human body and a potential voltage, Ey was detected in the measured part. After A/D conversion of E_V and E_A in the sampling frequency 2 MHz, data number 2048 points, the impedance were calculated. The measured time 1.024 ms was the period of the basic wave and time resolution of this system.

Other Link： http://search.jamas.or.jp/link/ui/2006177696

Construction of Standardization Model of Skin Impedance for Measurement of Biological Signal

SHIRAI Kiyoko, NAKAMURA Takao, KUSUHARA Toshimasa, YAMAMOTO Yoshitake

IEICE technical report. ME and bio cybernetics 104 ( 179 ) 1 - 4 2004.7

Language：Japanese Publisher：The Institute of Electronics, Information and Communication Engineers

Skin impedance with the feature which can be measured non-invasively with simple apparatus is suitable for measurement of biological signal, and there are many application measurement researches using it. A measurement value of skin impedance contains not only the change of target factor but also feature of individual factor and difference of a body part, so it is hard to evaluate suitably. In order to carry out application measurement more correctly, we proposed standardization model of skin impedance built based on measurement data. Correlation with measured value and model skin impedance was high in each parameter. Coefficients of variation of normalization of skin impedance turned into 60% of coefficients of variation of measured value, and have checked validity. Utilizing a standardization model for biological signal measurement has high diagnostic accuracy, and it is useful to future application measurement.

Other Link： http://search.jamas.or.jp/link/ui/2006177694

1.インピーダンス咽頭図(IPG)による高齢者の嚥下機能評価(第26回中国四国支部大会抄録)

楠原俊昌, 中村隆夫, 森恵子, 山本尚武

生体医工学 : 日本エム・イー学会誌 42 ( 2 ) 142 - 142 2004.6

3.身体運動解析のための生体インピーダンスの高時間分解能測定システムの開発(第26回中国四国支部大会抄録)

中村隆夫, 大橋充明, 玉井義隆, 楠原俊昌, 山本尚武

生体医工学 : 日本エム・イー学会誌 42 ( 2 ) 142 - 142 2004.6

食道癌手術前後の嚥下機能変化の評価におけるインピーダンス咽頭図(IPG)の有効性の検討

楠原俊昌, 中村隆夫, 白川靖博, 森恵子, 猶本良夫, 山本尚武

日本ME学会秋季大会論文集 18th 2004

インピーダンス咽頭図(IPG)による加齢に伴う嚥下機能変化の分析

楠原俊昌, 中村隆夫, 森恵子, 白川靖博, 猶本良夫, 山本尚武

日本ME学会大会論文集 43rd 2004

身体運動時におけるFFTによる生体インピーダンス解析のための計測システム

中村隆夫, 楠原俊昌, 大橋充明, 玉井義隆, 山本尚武

日本ME学会大会論文集 43rd 2004

生体情報計測のための皮膚インピーダンスの標準化モデルの構築

白井喜代子, 山本尚武, 中村隆夫

日本ME学会大会論文集 43rd 2004

Application of Impedance Pharyngography (IPG) and Parameter Analysis for Quantitative Appraisal of Change of Swallowing Function

楠原俊昌, 中村隆夫, 白川靖博, 森恵子, 猶本良夫, 山本尚武

電気学会計測研究会資料 IM-04 ( 35-49 ) 2004

An Analysis Method for Impedance Pharyngography in Chin-Tuck Swallowing

NAKAMURA Takao, KUSUHARA Toshimasa, MORI Keiko, YAMAMOTO Yoshitake

IEICE technical report. ME and bio cybernetics 103 ( 184 ) 47 - 50 2003.7

Language：Japanese Publisher：The Institute of Electronics, Information and Communication Engineers

A Chin-Tuck swallowing is recommended for the rehabilitation of patient of dysphasia. However Impedance Pharyngography (IPG) with Chin-Tuck swallowing includes impedance change which is influenced by neck flexion. Therefore it is difficult to evaluate swallowing using IPG. This paper describes how to eliminate component of impedance change by neck flexion from IPG in Chin-Tuck swallowing. We defined the correction IPG using an elimination method of the impedance change, which was estimated by angle of neck joint. There was high similarity between the correction IPG with Chin-Tuck swallowing and normal IPG, namely without Chin-Tuck swallowing. This method can be expected to rehabilitation fields.

Other Link： http://search.jamas.or.jp/link/ui/2004268509

頷き嚥下におけるインピーダンス咽頭図の解析法

中村隆夫, 楠原俊昌, 井上和哉, 森恵子, 山本尚武

日本ME学会大会論文集 42nd 2003

臨床用嚥下機能診断装置のためのインピーダンス咽頭図(IPG)のパラメータ解析に関する検討

楠原俊昌, 中村隆夫, 山本尚武

日本ME学会秋季大会論文集 17th 2003

生体電位計測のための基準電極に及ぼす皮膚電気活動の影響

白井喜代子, 山本尚武, 中村隆夫, 楠原俊昌

日本ME学会大会論文集 42nd 2003

生体インピーダンス測定用同心円電極の評価領域

山本尚武, 白井喜代子, 合田典子, 中村隆夫, 楠原俊昌, 奥田博之

日本ME学会大会論文集 42nd 2003

Consideration of Waveform of Impedance Pharyngography (IPG) in Patients with Dysphagia

KUSUHARA Toshimasa, NAKAMURA Takao, MORI Keiko, YAMAMOTO Yoshitake

IEICE technical report. ME and bio cybernetics 102 ( 196 ) 49 - 52 2002.7

Language：Japanese Publisher：The Institute of Electronics, Information and Communication Engineers

Until now, we have proposed Impedance Pharyngography (IPG) using neck electrical impedance, as a quantitative method for evaluating swallowing function. Now, we are carrying out IPG measurement of patients with dysphagia to achieve clinical applications. In this study, we considered differences of characteristics of IPG waveforms between healthy subjects and patients, and differences of characteristics of IPG waveforms in the vicinity of operation, depending on results of IPG measured for patients with dysphagia. Additionally, we propose definition of effective parameters for classifying healthy subjects and patients by a quantitative evaluation method.

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Other Link： http://search.jamas.or.jp/link/ui/2003083514

女性の前腕表皮角質層の水分測定

白井喜代子, 山本尚武, 奥田博之, 中村隆夫, 楠原俊昌, 合田典子

日本ME学会大会論文集 41st 2002

嚥下活動評価のための嚥下音の特性に関する検討

楠原俊昌, 中村隆夫, 森恵子, 山本尚武

日本ME学会大会論文集 41st 2002

Using Electrodermal Activity for Analysis of the Effect of Different Sense Stimulations on Humans

Kiyoko Shirai, Yoshitake Yamamoto, Takao Nakamura, Toshimasa Kusuhara, Hiroyuki Okuda

Journal of International Society of Life Information Science 2002

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