Evaluation of causal heart diseases in cardioembolic stroke by cardiac computed tomography

Table 2 Sources of cardioembolism

Risk level	Source	Condition
High-risk sources	Left atrial thrombus	Atrial fibrillation (Af)
		Mitral valve stenosis
	Left ventricular thrombus	Acute myocardial infarction
		Cardiomyopathy (ischemic, nonischemic)
		Congestive heart failure with low ejection fraction
	Cardiac tumor	Primary cardiac tumor
		Secondary cardiac tumor
	Vegetation	Infective endocarditis
		Nonbacterial thrombotic endocarditis
	Mechanical prosthetic heart valve
Medium-risk sources	Interatrial septal abnormalities	Patent foramen ovale
		Atrial septal aneurysm
		Atrial septal defect
	Interventricular septal abnormalities	Interventricular membranous septal aneurysm
		Ventricular septal defect
	Pulmonary arteriovenous malformation
	Bioprosthetic heart valve
	Valvular abnormalities other than tumor and vegetation	Aortic valve sclerosis/stenosis
		Mitral annular calcification
		Lambl’s excrescences
		Calcified amorphous tumor
		Mitral valve prolapse
	Atrial cardiomyopathy
	Atrial arrhythmias other than Af	Atrial flutter
		Sick sinus syndrome