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Assessment of Prolonged Expiration Breathing Using Infrared Thermal Imaging Modality: A Case Study

机译:红外热像仪评估呼气时间延长:一个案例研究

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Breathing is one of the important vital signs assessed by healthcare practitioner for patient monitoring and disease management. There are several methods used to evaluate breathing activities such as respiratory belt transducer, impedance pneumography, bioacoustics method and spirometry. Some of these devices require external attachment on patient such as belt, electrodes and sensor which could be inconvenient if used over long period of times. Infrared Thermal Imaging (ITI) is a contactless device that detects temperature changes which can be used to assess breathing since hot air particles are being released to surrounding through nose which create temperature variance during breathing. Since majority of studies done on breathing function were focused on respiratory rate, hence, in this study we would like to assess the timing of inspiration (TI) and expiration (TE) in prolonged expiration breathing using Infrared Thermal Imaging (ITI). This study involved 4 subjects that are required to simulate our designed prolonged expiration breathing which will be guided by a video. The assessment of TI and TE will be recorded using ITI and Respiratory Inductive Plethysmograph (RIP) simultaneously. Graph pattern plotted from the ITI images show consistent deflections on the graph which reflect the transition point of inspiration and expiration. This transition point allowed us to measure the TI and TE. Our main analysis shows that there were no significant differences of the reading obtained by ITI and RIP in TI and TE. This data suggest that the performance of ITI was almost equivalent to RIP and could be used as an alternative method for breathing assessment.
机译:呼吸是医护人员评估的重要生命体征之一,用于患者监测和疾病管理。有几种评估呼吸活动的方法,例如呼吸带换能器,阻抗呼吸描记法,生物声学方法和肺活量测定法。这些设备中的一些需要在患者身上进行外部连接,例如皮带,电极和传感器,如果长时间使用可能会带来不便。红外热成像(ITI)是一种可检测温度变化的非接触式设备,可用于评估呼吸,因为热空气颗粒会通过鼻子释放到周围,从而在呼吸过程中产生温度变化。由于有关呼吸功能的大多数研究都集中在呼吸频率上,因此,在本研究中,我们希望使用红外热成像(ITI)评估长时间呼气中吸气(TI)和呼气(TE)的时间。这项研究涉及4个主题,这些主题是模拟我们设计的延长呼气呼吸所必需的,这将通过视频进行指导。 TI和TE的评估将同时使用ITI和呼吸感应体积描记器(RIP)进行记录。从ITI图像绘制的图形模式在图形上显示出一致的偏转,反映了吸气和呼气的过渡点。这个过渡点使我们能够测量TI和TE。我们的主要分析表明,在TI和TE中,ITI和RIP获得的读数没有显着差异。这些数据表明,ITI的性能几乎与RIP相当,可以用作呼吸评估的替代方法。

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