使用生物电阻抗技术监测和建模吞咽过程中的咽部行为

文献信息

中文摘要

为了对疑似吞咽困难的患者进行无创吞咽测试，考虑了一种能够在吞咽过程中简单方便地监测咽部行为的系统。组装了采用生物电阻抗技术的系统，向受试者颈部输入交流电并输出相应的电压响应。我们使用该系统测量吞咽过程中的电压，并观察吞咽时的电压变化以评估系统的有效性。基于颈部区域不同位置的测量，研究了特征性电压变化与组织或器官运动（特别是舌骨运动）之间的关系。吞咽咽期相关肌肉的作用通过用电路描述的肌肉群模型进行了解释。此外，吞咽中测得的电压被评估为电阻分量和电抗分量。这种方法证明了该系统检测细胞水平变化的潜力。

英文摘要

To perform a non-invasive swallowing test for patients suspected of having dysphagia, a system capable of monitoring pharyngeal behavior simply and easily during swallowing was considered. The system incorporating a bioelectrical impedance technique was assembled to input an alternating current into the neck of the subjects and to output the corresponding voltage response. We measured the voltages during swallowing using this system and observed the voltage changes for swallowing to evaluate the system validity. The relationship between the characteristic voltage changes and the movements of tissues or organs, specifically those of the hyoid bone, were investigated on the basis of the measurements at various positions in the neck region. The actions of the related muscles in the pharyngeal phase of swallowing were explained by a muscle group model described with an electrical circuit. Additionally, the voltage measured in swallowing was assessed as resistive and reactive components. This approach demonstrated a potential of this system to detect cellular-level changes. &#xD.