Ultrasound Diagnostic for Diaphragmatic Dysfunction in Reanimation

"All patients will have a diaphragmatic ultrasound in the 4 hours before the extubation.~* a record of the right and left diaphragmatic cupolas run, with a chest approach and using a 4-5 MHz (megahertz) cardiac or abdominal sensor. 3 acquisitions for each side~* a record of the diaphragm thickening at the right and left apposition zones with a 10-12 MHz (megahertz) vascular sensor. 3 acquisitions for each side"