Application and development of electrical impedance tomography in monitoring the conditions of acute respiratory distress syndrome
Acute respiratory distress syndrome(ARDS)is characterized by acute hypoxemic respiratory failure.The chest imaging shows the bilateral pulmonary infiltration and exudation.These cannot be fully explained by heart failure or fluid overload.Currently,computed tomography(CT)is commonly used for the classification and the prognosis of patients with ARDS.However,due to the inconvenience of transporting critically ill patients,this examination cannot meet the needs of real-time monitoring of ventilation and perfusion of lung tissue.The emergence of electrical impedance tomography(EIT)has solved this problem very well.As an emerging functional imaging technology,EIT can real-time assess the lung ventilation and perfusion non-invasively.Thus,it assists in the diagnosis of ARDS,evaluates the severity of illness,optimizes the mechanical ventilation parameters for patients,and assesses the treatment effectiveness.This article mainly discusses the research progress of EIT technology on monitoring the conditions of ARDS pa-tients.
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