I. Introduction
LUng ultrasound (LUS) is an emerging imaging technique that has significantly developed over the last decade. In particular, the use of LUS has been widely and quickly growing since the start of the coronavirus disease 2019 (COVID-19) pandemic. In fact, the primary benefits of LUS (portability, cost-effectiveness, real-time imaging, and safety) over other imaging modalities, such as, for example, Computed Tomography (CT), allowed LUS to be extensively used to assess the condition of the lungs in patients affected with COVID-19 [1]–[4]. Additionally, LUS may now be utilized for patient monitoring and symptomatic patient triage [1].