Fig.5From: Interpleural location of chest drain on ultrasound excludes pneumothorax and associates with a low degree of chest drain foreshortening on the antero-posterior chest X-rayM-mode (linear transducer) during a respiratory cycle in anterior axillary line confirming ventral pneumothorax in a patient with low CDI. There is a bat sign of two ribs with the intercostal space between them. The seashore sign in inspirium changes with a pneumothorax (barcode sign) in exspirium (Fig. 4)Back to article page