Svoboda Libor, Sperrhake Jan, Nisser Maria, Zhang Chen, Notni Gunter, Proquitté Hans
Department of Pediatric and Adolescent Medicine, University Hospital Jena, Jena, Germany.
Abbe Center of Photonics, Institute of Applied Physics, Friedrich Schiller University Jena, Jena, Germany.
Front Pediatr. 2022 Aug 9;10:897961. doi: 10.3389/fped.2022.897961. eCollection 2022.
Newborns and preterm infants require accurate and continuous monitoring of their vital parameters. Contact-based methods of monitoring have several disadvantages, thus, contactless systems have increasingly attracted the neonatal communities' attention. Camera-based photoplethysmography is an emerging method of contactless heart rate monitoring. We conducted a pilot study in 42 healthy newborn and near-term preterm infants for assessing the feasibility and accuracy of a multimodal 3D camera system on heart rates (HR) in beats per min (bpm) compared to conventional pulse oximetry. Simultaneously, we compared the accuracy of 2D and 3D vision on HR measurements. The mean difference in HR between pulse oximetry and 2D-technique added up to + 3.0 bpm [CI-3.7 - 9.7; = 0.359, limits of agreement (LOA) ± 36.6]. In contrast, 3D-technique represented a mean difference in HR of + 8.6 bpm (CI 2.0-14.9; = 0.010, LOA ± 44.7) compared to pulse oximetry HR. Both, intra- and interindividual variance of patient characteristics could be eliminated as a source for the results and the measuring accuracy achieved. Additionally, we proved the feasibility of this emerging method. Camera-based photoplethysmography seems to be a promising approach for HR measurement of newborns with adequate precision; however, further research is warranted.
新生儿和早产儿需要对其生命体征参数进行准确且持续的监测。基于接触的监测方法存在若干缺点，因此，非接触式系统越来越吸引新生儿学界的关注。基于摄像头的光电容积脉搏波描记法是一种新兴的非接触式心率监测方法。我们对42名健康新生儿和近足月早产儿进行了一项试点研究，以评估一种多模态3D摄像头系统在测量每分钟心跳次数（bpm）的心率（HR）方面相对于传统脉搏血氧饱和度测定法的可行性和准确性。同时，我们比较了二维（2D）和三维（3D）视觉在心率测量上的准确性。脉搏血氧饱和度测定法与二维技术之间的心率平均差异总计为 +3.0 bpm [可信区间（CI）-3.7 - 9.7；P = 0.359，一致性界限（LOA）±36.6]。相比之下，与脉搏血氧饱和度测定法的心率相比，三维技术的心率平均差异为 +8.6 bpm（CI 2.0 - 14.9；P = 0.010，LOA ± 44.7）。患者特征的个体内和个体间差异都可以作为结果和测量准确性的来源而被消除。此外，我们证明了这种新兴方法的可行性。基于摄像头的光电容积脉搏波描记法似乎是一种以足够精度测量新生儿心率的有前景的方法；然而，仍需要进一步研究。
