Development of a system to monitor laryngeal movement during swallowing using a bend sensor.
Development of a system to monitor laryngeal movement during swallowing using a bend sensor.
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DOI：
10.1371/journal.pone.0070850
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发表时间：
2013
期刊：
影响因子：
3.7
通讯作者：
Maeda Y
中科院分区：
文献类型：
--
作者：
Li Q;Hori K;Minagi Y;Ono T;Chen YJ;Kondo J;Fujiwara S;Tamine K;Hayashi H;Inoue M;Maeda Y
吞咽功能障碍(也称为吞咽困难)，导致营养摄入恶化，减缓康复，并导致吸入性肺炎，是神经损伤后非常常见的疾病。虽然视频透视(VF)检查被广泛用于检测误吸，但由于缺乏足够的设备和方案，客观、非侵入性地评估吞咽功能的方法尚未建立。本文介绍了一种通过弯曲改变阻力的弯曲传感器，用于监测与吞咽有关的喉部运动。本研究招募了6名健康男性志愿者。通过差分分析，在弯曲传感器产生的信号波形上定义特定的时间点来描述喉部的运动。此外，通过分析弯曲传感器的信号波形与VF同时记录的舌骨运动之间的顺序相关性，证实了所获得的波形的生理学意义。成功地在信号波形上定义了7个时间点来参考喉部运动。各时间点与特定的室颤事件有很好的相关性，没有明显的时间滞后，波形时间点与匹配的室颤事件呈正相关。此外，信号波形上各时相的持续时间与匹配的舌骨活动持续时间有明显的相似之处。目前使用弯曲传感器的监测系统可能有助于观察吞咽过程中喉部运动的时间方面，并与舌骨运动很好地协调。
Swallowing dysfunction (also known as dysphagia), which results in a deterioration of nutritional intake, slows rehabilitation and causes aspiration pneumonia, is very common following neurological impairments. Although videofluorographic (VF) examination is widely used for detecting aspiration, an objective and non-invasive method for assessing swallowing function has yet to be established because of a lack of adequate devices and protocols. In this paper, a bend sensor whose resistance is altered by bending was introduced to monitor swallowing-related laryngeal movement. Six healthy male volunteers were recruited in the present study. Specific time points on the signal waveform produced by the bend sensor were defined to describe laryngeal movement by differential analysis. Additionally, the physiological significance of the obtained waveform was confirmed by analyzing the sequential correlations between the signal waveform from the bend sensor and hyoid bone kinetics simultaneously recorded by VF. Seven time points were successfully defined on the signal waveform to reference laryngeal movement. Each time point was well correlated with certain VF events, with evidence of no significant time lags, and there were positive correlations between waveform time points and matched VF events. Furthermore, obvious similarities were noticed between the duration of each phase on the signal waveform and the duration of the matched hyoid bone activity. The present monitoring system using a bend sensor might be useful for observing the temporal aspects of laryngeal movement during swallowing, and it was well coordinated with hyoid bone movement.
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DOI：
10.1016/j.pmr.2008.06.001
发表时间：
2008-11
影响因子：
1.7
作者：
Matsuo, Koichiro;Palmer, Jeffrey B.
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影响因子：
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作者：
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影响因子：
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作者：
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