RecruitingPhase 3Drug trialComparing the Safety and Efficacy of ASI-02 to Agitated Saline for Suspected Right-to-left ShuntThis is a phase 3, multicenter, open-label, blinded, crossover trial in which each participant will undergo a randomized sequence of ASI-02 and agitated saline standard of care (SoC) via a saline contrast transthoracic echocardiogram (TTE) study.