Introduction: Lung ultrasound (LUS) performed by non-radiologist doctors has evolved over the last few decades, placing it as a useful diagnostic, prognostic and monitoring bedside tool in patients with respiratory disease. Despite its proven clinical applications, LUS training has not been standardized in Portugal.

Objetctives: To characterize LUS learning processes and clinical usage amongst portuguese pulmonologists as well as to assess future needs.

Methods: From August to November 2022 an online survey was sent to all members of the Portuguese Pulmonology Society. Degrees of confidence were assessed through Likert scales. Pearson?s chi-squared test and non-parametric tests were used. Outcomes were considered statistically significant if the probability of error was below 5% (p < 0.05).

Results: 114 valid answers were obtained. Most responders (81%) had LUS training and 22% had attended other ultrasound-related courses. The majority had an ultrasound machine available. However, only 17% performed LUS > 3 times per week. Overall confidence in LUS usage for diagnostic purpose (median: 7/10), disease monitoring (median: 7/10) and support of invasive procedures (median: 8/10) were high. There was a significant relation between higher levels of confidence and regularly attending LUS courses and performing LUS > 3 times per week. The main reasons preventing regular use of LUS were availability/cost of courses, availability/cost of equipment and lack of time.

Conclusions: Physician`s confidence degree on ultrasound utility is related to regular LUS training as well as regular usage. Costs involved with LUS training hamper its wider use.