ABCs of Lung Ultrasound - A-Lines, B-Lines, Consolidation A-Profile - Air filled lung does not transmit sound waves, leading to A-line (reverberation) artifact B-Profile - Interstitium widens to allow propagation of ultrasound beams past the pleural interface C-Profile - Filled alveoli lead to a consolidated portion of lung (not air-filled) • If bronchioles are air filled: static air bronchograms will be seen • If bronchioles are partially fluid filled: dynamic air bronchograms may be seen • If bronchioles are fluid filled: fluid bronchograms may be seen C-Profile - Collapsed alveoli lead to a consolidated portion of lung (not air-filled) • If bronchioles are completely collapsed: no air bronchograms will be seen • If bronchioles are open or partially collapsed: static air bronchograms will be seen IM POCUS Focus @IMPOCUSFocus #ABCs #Lung #Profiles #Ultrasound #POCUS #Differential #Diagnosis #clinical #pulmonary
