Respiratory image analysis

This chapter gives an overview of medical imaging methods that are used for generation of pulmonary images and it assesses their suitability for implementation into wearable instruments. It focuses on the noninvasive radiation-free method of electrical impedance tomography (EIT) which exhibits a high potential for clinical use in a wearable design. It presents the measuring principle of EIT, the process of image reconstruction, and the generation of functional images and measures. It further describes the challenges of data acquisition and analysis with wearable EIT, the current state in wearable EIT research, and the possibilities of EIT integration with other biosignals.