Yu Byung Gyu, Oh Je Hyeok, Kim Yeomyung, Kim Tae Wook
School of Electrical and Electronic Engineering, Yonsei University, Seoul, Republic of Korea.
Department of Emergency Medicine, College of Medicine, Chung-Ang University, Seoul, Republic of Korea.
PLoS One. 2017 Aug 30;12(8):e0183971. doi: 10.1371/journal.pone.0183971. eCollection 2017.
We developed a new chest compression depth (CCD) measuring technology using radar and impulse-radio ultra-wideband (IR-UWB) sensor. This study was performed to determine its accuracy on a soft surface.
Four trials, trial 1: chest compressions on the floor using an accelerometer device; trial 2: chest compressions on the floor using an IR-UWB sensor; trial 3: chest compressions on a foam mattress using an accelerometer device; trial 4: chest compressions on a foam mattress using an IR-UWB sensor, were performed in a random order. In all the trials, a cardiopulmonary resuscitation provider delivered 50 uninterrupted chest compressions to a manikin.
The CCD measured by the manikin and the device were as follows: 57.42 ± 2.23 and 53.92 ± 2.92 mm, respectively in trial 1 (p < 0.001); 56.29 ± 1.96 and 54.16 ± 3.90 mm, respectively in trial 2 (p < 0.001); 55.61 ± 1.57 and 103.48 ± 10.48 mm, respectively in trial 3 (p < 0.001); 57.14 ± 3.99 and 55.51 ± 3.39 mm, respectively in trial 4 (p = 0.012). The gaps between the CCD measured by the manikin and the devices (accelerometer device vs. IR-UWB sensor) on the floor were not different (3.50 ± 2.08 mm vs. 3.15 ± 2.27 mm, respectively, p = 0.136). However, the gaps were significantly different on the foam mattress (48.53 ± 5.65 mm vs. 4.10 ± 2.47 mm, p < 0.001).
The IR-UWB sensor could measure the CCD accurately both on the floor and on the foam mattress.
我们开发了一种使用雷达和脉冲无线电超宽带（IR-UWB）传感器的新型胸外按压深度（CCD）测量技术。本研究旨在确定其在柔软表面上的准确性。
进行了四项试验，试验1：使用加速度计设备在地板上进行胸外按压；试验2：使用IR-UWB传感器在地板上进行胸外按压；试验3：使用加速度计设备在泡沫床垫上进行胸外按压；试验4：使用IR-UWB传感器在泡沫床垫上进行胸外按压，按随机顺序进行。在所有试验中，一名心肺复苏提供者对一个人体模型进行50次不间断的胸外按压。
人体模型和设备测量的CCD如下：试验1中分别为57.42±2.23和53.92±2.92毫米（p<0.001）；试验2中分别为56.29±1.96和54.16±3.90毫米（p<0.001）；试验3中分别为55.61±1.57和103.48±10.48毫米（p<0.001）；试验4中分别为57.14±3.99和55.51±3.39毫米（p=0.012）。人体模型和设备（加速度计设备与IR-UWB传感器）在地板上测量的CCD之间的差距没有差异（分别为3.50±2.08毫米和3.15±2.27毫米，p=0.136）。然而，在泡沫床垫上差距有显著差异（48.53±5.65毫米与4.10±2.47毫米，p<0.001）。
IR-UWB传感器在地板和泡沫床垫上均可准确测量CCD。
