Table 1.

Demographic, Clinical and Radiological Characteristics.

	Case 1	Case 2	Case 3	Case 4	Case 5	Case 6	Case 7
Age/gender	78/F	73/F	88/F	74/M	63/F	55/M	83/F
Clinical Presentation	L hand weakness	R hand decreased dexterity	L arm weakness L pronator drift	R hand decreased dexterity (after cardiac catheterization)	R hand decreased dexterity R pronator drift	L hand weakness L pronator drift	L hand weakness
Risk Factors	HTN, DM, HLD, ex-smoker	HTN, HLD, prior TIA	HTN, DM, HLD, atrial fibrillation, prior stroke	HLD, CAD, smoker	HTN, HLD, ex-smoker, old L ICA occlusion with prior stroke	HTN, HLD, ex-smoker	HTN, HLD, ex-smoker
Workup	TTE: normal	TTE: normal	INR < 1.8 TTE: normal	TTE: LVEF 40%, inferolateral wall hypokinesis	TTE/TEE: aortic valve papillary fibroelastoma	EKG, TTE,TEE: normal findings, negative hypercoagulable work up	EKG, TTE, TEE: normal findings
MRI/ MRA	R precentral gyrus infarct, R ICA stenosis	L precentral gyrus infarct, L ICA stenosis	R pre/post-central gyrus infarct, normal vessels	L pre/post-central gyrus infarct, normal vessels	L precentral gyrus infarct, L- ICA occlusion, TCD: preserved vasomotor reactivity	R precentral gyrus infarct, normal vessels	R precentral gyrus infarct, normal vessels
DWI
Classification	Large artery atherothrombosis	Large artery atherothrombosis	Cardioembolic	Cardioembolic	Determined (Hypoperfusion)	Undetermined	Undetermined

F= female, M= male, HTN= hypertension, DM= diabetes mellitus, HLD= hyperlipidemia, MCA= middle cerebral artery, TIA= transient ischemic attack, CAD= coronary artery disease, ICA= internal carotid artery, EKG= electrocardiogram, US= ultrasound, TTE= transthoracic echocardiogram, TEE= transesophageal echocardiogram, LVEF= left ventricular ejection fraction, INR= international normalized ratio, MRI= magnetic resonance imaging, MRA= magnetic resonance angiography, TCD= transcranial Doppler, DWI= Diffusion weighted imaging,