Andy Adler, Tarek El Harake, Martina Mosing, Andreas Fahlman
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引用次数: 0
Abstract
Objective: Electrical impedance tomography (EIT) has shown the ability to provide clinically useful functional information on ventilation in humans and other land mammals. We are motivated to use EIT with sea mammals and human divers, since EIT could provide unique information on lung ventilation that can help address diver performance and safety, and veterinary and behavioural questions. However, in-water use of EIT is challenging, primarily because sea water is more conductive than the body.
Approach: We first address this issue by modelling the in-water component and evaluating image reconstruction algorithms.
Main results: EIT is able to produce reasonable images if an outer insulating layer allows a water layer thickness < 2% of the body radius. We next describe the design of custom EIT belts with an outer neoprene insulator to minimize current leakage. We show example underwater EIT recordings in human and dolphin subjects.
Significance: we demonstrate in-water EIT is feasible with appropriate techniques.
.
期刊介绍：
Physiological Measurement publishes papers about the quantitative assessment and visualization of physiological function in clinical research and practice, with an emphasis on the development of new methods of measurement and their validation.
Papers are published on topics including:
applied physiology in illness and health
electrical bioimpedance, optical and acoustic measurement techniques
advanced methods of time series and other data analysis
biomedical and clinical engineering
in-patient and ambulatory monitoring
point-of-care technologies
novel clinical measurements of cardiovascular, neurological, and musculoskeletal systems.
measurements in molecular, cellular and organ physiology and electrophysiology
physiological modeling and simulation
novel biomedical sensors, instruments, devices and systems
measurement standards and guidelines.
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