Fig. 7.

Ultrasound technique and images of the diaphragm. A The location of probe placement on the chest wall for assessment of diaphragm movement. The probe is placed laterally and perpendicularly on the lateral chest wall on the lower intercostal spaces between mid- and posterior axillary line. B, C The ultrasound images of the left and the right hemidiaphragm and the measurement of the diaphragmatic excursion from end of end inspiration to end expiration