Combining Electrical Impedance Tomography and Thoracic Ultrasound Toinvestigate Dynamic Changes

"* Electrical impedance tomography (EIT)：Assessing pulmonary function in chronic lung diseases.~* Lung ultrasound：Assessing diaphragm atrophy in mechanically ventilated patients.~* Esophageal pressure：The work of breathing, or the energy required by respiratory muscles to meet ventilatory demands, can be directly evaluated by esophageal pressure~* Oxygen consumption：Indirectly evaluated by measuring oxygen consumption (V̇O2) during mechanical ventilation The oxygen cost of breathing, reflected the increase in V̇O2 when transitioning from mechanical ventilation to spontaneous breathing, has been shown to predict weaning outcomes."