Obstructive sleep apnea (OSA) is caused by the occlusion of the upper airway. No real-time imaging technique, which can detect such occlusion during natural sleep, exists at the moment. The surface electrodes were attached on the face and neck, and then changes in the conductivity image of the upper airway were successfully detected.

Additional Metadata
Publisher International Steering Committee on Electrical Impedance Tomography
Series 15th International Conference on Biomedical Applications of Electrical Impedance Tomography (EIT 2014)
Citation
Kim, Sang-Wook, Oh, Tong In, Kwon, Ohin, & Woo, Eung Je. (2014). Detection of the Upper Airway Obstruction using Electrical Impedance Tomography. In 15th International Conference on Biomedical Applications of Electrical Impedance Tomography (EIT 2014). International Steering Committee on Electrical Impedance Tomography.