Clinical performance of a novel textile interface for neonatal chest electrical impedance tomography
Clinical performance of a novel textile interface for neonatal chest electrical impedance tomography
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DOI：
10.1088/1361-6579/aab513
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发表时间：
2018-04-01
影响因子：
3.2
通讯作者：
Waldmann, A. D.
中科院分区：
文献类型：
--
作者：
Sophocleous, L.;Frerichs, I.;Waldmann, A. D.
目的：危重新生儿和婴儿可能尤其受益于床边持续的胸部电阻抗断层扫描(EIT)监测。本研究开发了一种用于新生儿EIT检测的纺织32电极接口，并对其进行了测试，以验证其临床性能。其目的是评估在临床环境中的易用性、电极-皮肤界面处接触阻抗的稳定性以及可能的不良影响。方法：30例早产儿，胎龄30.3+/-3.9周(平均+/-SD)，出生后13.8±28.2d，入院时体重1727+/-869g。连续测量电极-皮肤接触阻抗长达3d，并在紧固皮带后的最初20min阶段和在没有任何临床干预的情况下在10h的测量间隔内进行分析。主治医生对患者的皮肤状况进行评估。主要结果：我们的研究结果表明，纺织电极界面适合于新生儿胸部EIT的长期成像。它不会对早产儿造成任何痛苦或不适。在紧固电极带后立即和随后的20分钟期间，观察到稳定的接触阻抗约为300欧姆。随着时间的推移，接触阻抗略有增加。接触阻抗的潮汐变化小于5欧姆。意义：用于新生儿EIT成像的纺织32电极腰带的可用性，以及简单、快速、准确和可重复的胸部放置，增强了EIT用于危重新生儿和婴儿的区域性肺部监测的潜力。
Objective: Critically ill neonates and infants might particularly benefit from continuous chest electrical impedance tomography (EIT) monitoring at the bedside. In this study a textile 32-electrode interface for neonatal EIT examination has been developed and tested to validate its clinical performance. The objectives were to assess ease of use in a clinical setting, stability of contact impedance at the electrode-skin interface and possible adverse effects. Approach: Thirty preterm infants (gestational age: 30.3 +/- 3.9 week (mean +/- SD), postnatal age: 13.8 +/- 28.2 d, body weight at inclusion: 1727 +/- 869 g) were included in this multicentre study. The electrode-skin contact impedances were measured continuously for up to 3 d and analysed during the initial 20-min phase after fastening the belt and during a 10 h measurement interval without any clinical interventions. The skin condition was assessed by attending clinicians. Main results: Our findings imply that the textile electrode interface is suitable for long-term neonatal chest EIT imaging. It does not cause any distress for the preterm infants or discomfort. Stable contact impedance of about 300 Ohm was observed immediately after fastening the electrode belt and during the subsequent 20 min period. A slight increase in contact impedance was observed over time. Tidal variation of contact impedance was less than 5 Ohm. Significance: The availability of a textile 32-electrode belt for neonatal EIT imaging with simple, fast, accurate and reproducible placement on the chest strengthens the potential of EIT to be used for regional lung monitoring in critically ill neonates and infants.