Chest shape measurement by multi-sensors for pulmonary electrical impedance tomography

Abstract

Abstract Electrical impedance tomography (EIT) has been gradually used in lung health detection. When the lungs are measured using EIT, the image quality is compromised by contour changes outside the thorax. In this paper, the shape measurement belts made by bend and inertial sensors are used to determine the specific information of the chest boundary of subjects. Three measurement belts are used to measure the chest cavity model. The measured model data are used to perform the simulation experiment of pulmonary EIT. The results indicate that the model measurement accuracy and the image accuracy are higher by the multi-sensor measurement belt. The multi-sensor measurement belt provides conditions for the wearable of pulmonary EIT equipment.