of these compartments.22
Diaphragmatic mobility. An ultrasonography examination
was used to assess the craniocaudal displacement of the left
branch of the portal vein in order to measure diaphragmatic
mobility.28 Patients were evaluated in the supine position using
an ultrasound scannerb in B-mode. A 3.5-MHz convex transducer
was positioned over the right subcostal region, and the
position of the left branch of the portal vein was marked with
the cursor during forced expiration and inspiration. Three reproducible
measurements were performed, and the best value
was used for the analysis