System and Method for imaging pulmonary diagnostic parameter

摘要

A lung diagnostic variable imaging system is introduced. To this end, the present invention is connected to the test subject air flow sensor for measuring the respiratory airflow through the airway; A pressure sensor connected to the test subject to measure pressure through the airway; An airway closing port connected to the airflow sensor to close the airway for a predetermined period of time; An EIT electrode belt having a plurality of electrodes for current injection and voltage sensing, and attached along the circumference of the chest of the subject to be measured; A volume calculator that measures changes in the volume of alveoli for each local area using the electrical conductivity of the alveoli for each local area measured through the EIT electrode belt and the total volume value introduced into the lungs of the test subject through the air flow sensor; Pulmonary elasticity coefficient and local airway resistance for each local area based on the volume change of the alveoli by the local area measured by the volume calculator, the pressure of the papilla measured through the airway obturator, and the airflow and volume values measured by the airflow sensor. A diagnostic variable calculator that measures coefficients; A control unit for transmitting an operation signal of the airway obstruction port; And a display unit that provides a user with an image of the pulmonary elasticity coefficient and the local airway resistance coefficient for each local area.