Table 1.

Classification of TTE findings

High embolic potential	Low/undetermined embolic potential
Left atrial thrombus Left ventricular thrombus Mitral stenosis or rheumatic valve disease Prosthetic heart valves Valvular vegetation Chronic myocardial infarction with EF<28% Dilated cardiomyopathy Atrial myxoma Papillary fibroelastoma PFO with concurrent systemic embolization	Mitral annular calcification Patent foramen ovale Atrial septal aneurysm Left ventricular aneurysm without thrombus Left atrial smoke (SEC) without A-fib Congestive heart failure with EF<30% Complex atheroma in aortic arch or ascending aorta Apical akinesia Wall motion abnormalities other than apical akinesia Hypertrophic cardiomyopathy Left ventricular trabeculation/non-compaction

A-fib: Atrial fibrillation; EF: Ejection fraction; PFO: Patent foramen ovale; SEC: Spontaneous echo contrast; TTE: Transthoracic echocardiography.