Table 3.

POC-US patterns and the corresponding combination of ultrasonography findings

POC-US pattern	Signs
AHF	Interstitial lung syndrome (the presence of multiple diffuse bilateral B-lines indicates interstitial syndrome) with reduced EF of the left ventricle or preserved EF with diastolic dysfunction
Pneumonia	Subpleural echo-poor region or one with tissue-like echo texture, with additional signs such as air/fluid bronchograms and adjacent B-lines (focal interstitial syndrome)
ARDS	Interstitial lung syndrome (the presence of multiple diffuse bilateral B-lines indicates interstitial syndrome), with non-homogeneous distribution of B-lines and spared areas, and normal systolic and diastolic function of the left ventricle
Massive pleural effusion	Anechoic space between parietal and visceral pleural and respiratory movement of the lung within the effusion
Possible pulmonary embolism	Dilated, hypokinetic RV with systolic septal dyskinesia plus dilated IVC with low collapsibility index (only found in massive or sub-massive pulmonary embolism) and eventually positive CUS of the groin or calf veins