Fig. 10
From: Ultrasound and non-ultrasound imaging techniques in the assessment of diaphragmatic dysfunction
Assessment of crural diaphragm thickness by chest CT using axial and coronal images. (Left panel) With axial imaging, the thickness of the right and left crural hemidiaphragms (arrows) can be measured at level of the origin of the celiac artery (arrowhead). Note the nodularity of the left crus, a normal variant of the diaphragm’s shape. (Right panel) With coronal imaging, the thickness of the crural hemidiaphragms (arrows) can be measured at level of the first lumbar vertebra