Fig. 10
From: COVITALE 2020 from eastern Indian population: imageologists perspective, a learning curve
LUS imaging features in COVID-19. a Small subpleural consolidation (red arrow) with pleural thickening depicted by a linear high frequency (15 MHz) of the lateral inferior area of the left lung. b Classic waterfall sign (red arrow) next intercostal space showing normal A and B lines. c Torchlight sign (red arrow) by B lines in the posterior superior area of the right lung scanned by a linear high frequency (15 MHz) transducer. d Multifocal B lines (red arrow) coming off from pleura using a curvilinear (3 MHz) transducer in the lateral inferior area of the right lung. e Multifocal B lines or separated B line with pleural irregularity (asterisk) scanned by a linear high-frequency (15 MHz) transducer in the anterior superior area of the right lung