Study Status: Recruiting
Recruit Status: Recruiting
Study Type: Observational
Official Title: Correlation of Graded Transthoracic Contrast Echocardiography With Chest CT Findings After Pulmonary Arteriovenous Malformation Embolization in Patients With Hereditary He
Brief Summary: Current HHT guidelines recommend CT scan to detect new or recurrent PAVMs after embolotherapy. Recent studies using transthoracic contrast echocardiography (TTCE) shunt grade for PAVM screening suggest that graded TTCE can accurately predict the size of PAVMs on chest CT and their amenability to embolization. This study's purpose is to evaluate whether TTCE shunt grade can also accurately predict PAVM size and amenability to treatment in patients who are post-embolization.