Feasibility of an Electrical Impedance Tomography Device for Pulmonary Function Testing in ALS Patients

EIT comprises a chest belt that is connected to a computer via a universal serial bus (USB) or an Ethernet cable. The chest belt captures EIT data, which is transmitted via the USB or Ethernet cable to the computer. Tomography-like impedance images of the lungs are computed and displayed on the computer. The impedance images will be used to evaluate lung recruitment and other pulmonary function parameters that are currently measured using standard-of-care PFT devices.