Adler Andy, Boyle Alistair
Department of Systems and Computer Engineering, Carleton University, Ottawa, ON, Canada.
IEEE Trans Biomed Eng. 2017 Nov;64(11):2494-2504. doi: 10.1109/TBME.2017.2728323.
Electrical impedance tomography (EIT) uses electrical stimulation and measurement at the body surface to image the electrical properties of internal tissues. It has the advantage of noninvasiveness and high temporal resolution but suffers from poor spatial resolution and sensitivity to electrode movement and contact quality. EIT can be useful to applications, where there are conductive contrasts between tissues, fluids, or gasses, such as imaging of cancerous or ischemic tissue or functional monitoring of breathing, blood flow, gastric motility, and neural activity. The past decade has seen clinical application and commercial activity using EIT for ventilation monitoring. Interpretation of EIT-based measures is complex, and this review paper focuses on describing the image interpretation "pathway." We review this pathway, from , , , , to . The relationship is discussed between the clinically relevant parameters and the reconstructed properties. An overview is given of areas of EIT application and of our perspectives for research and development.Electrical impedance tomography (EIT) uses electrical stimulation and measurement at the body surface to image the electrical properties of internal tissues. It has the advantage of noninvasiveness and high temporal resolution but suffers from poor spatial resolution and sensitivity to electrode movement and contact quality. EIT can be useful to applications, where there are conductive contrasts between tissues, fluids, or gasses, such as imaging of cancerous or ischemic tissue or functional monitoring of breathing, blood flow, gastric motility, and neural activity. The past decade has seen clinical application and commercial activity using EIT for ventilation monitoring. Interpretation of EIT-based measures is complex, and this review paper focuses on describing the image interpretation "pathway." We review this pathway, from , , , , to . The relationship is discussed between the clinically relevant parameters and the reconstructed properties. An overview is given of areas of EIT application and of our perspectives for research and development.
电阻抗断层成像（EIT）利用体表的电刺激和测量来对内部组织的电学特性进行成像。它具有非侵入性和高时间分辨率的优点，但空间分辨率较差，且对电极移动和接触质量敏感。EIT对于组织、流体或气体之间存在导电对比度的应用可能有用，例如对癌组织或缺血组织的成像，或对呼吸、血流、胃动力和神经活动的功能监测。在过去十年中，已经出现了使用EIT进行通气监测的临床应用和商业活动。基于EIT的测量结果的解释很复杂，这篇综述文章重点描述图像解释“路径”。我们从……到……回顾这条路径。讨论了临床相关参数与重建特性之间的关系。概述了EIT的应用领域以及我们的研发前景。电阻抗断层成像（EIT）利用体表的电刺激和测量来对内部组织的电学特性进行成像。它具有非侵入性和高时间分辨率的优点，但空间分辨率较差，且对电极移动和接触质量敏感。EIT对于组织、流体或气体之间存在导电对比度的应用可能有用，例如对癌组织或缺血组织的成像，或对呼吸、血流、胃动力和神经活动的功能监测。在过去十年中，已经出现了使用EIT进行通气监测的临床应用和商业活动。基于EIT的测量结果的解释很复杂，这篇综述文章重点描述图像解释“路径”。我们从……到……回顾这条路径。讨论了临床相关参数与重建特性之间的关系。概述了EIT的应用领域以及我们的研发前景。
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