TABLE 1:

Patient characteristics

Case No.	Age (y)/Sex	Associated Conditions	Type of Ischemia	Mechanism	Neurologic Deficits^*	CT/MRI Findings	Angiographic Findings	Main Flow to Affected MCA^†	Other Collateral^‡	PET Findings, Distribution of MP^§
1	66/M	HT, HLP	Completed stroke	Hemodynamic	L sensory deficit	Bil lacunar infarcts	R ICS	Antegrade flow	None	Matched perfusion (G1)
2	71/M	HT	Completed stroke	A-to-A embolism	L hemiparesis, L hemianopsia	R small cortical infact	R ICS	Antegrade flow	None	Matched perfusion (G1)
3	62/M	DM, HT, HLP, MI, ASO	Completed stroke	Unclassified	R hemiparesis, motor aphasia	L lacunar infarcts	L ICS	None	None	Affected IBZ and SBZ (G3)
4	66/M	DM, HT, AP, ASO	Completed stroke	Unclassified	R hemiparesis	L lacunar infarct	L ICS	Antegrade flow	Acom→L ACA	Matched perfusion (G1)
5	78/M	HT	Completed stroke	Unclassified	L hemiparesis, L sensory deficit	R small cortical infact	R ICS	Antegrade flow	None	Matched perfusion (G1)
6	81/F	HT, ASO, af	Completed stroke	Hemodynamic	R hemiparesis, R sensory deficit	L lacunar infarct	L ICS	None	None	Bil MCAt including BZ (G6)
7	66/F	HT	Asymptomatic			None	R ICS	None	None	Affected IBZ alone (G2)
8	63/F	HT, HLP	TIA	A-to-A embolism	R hemiparesis, motor aphasia	Bil lacunar infarcts	L ICS	Antegrade flow	Acom→L ACA	Matched perfusion (G1)
9	68/M	HT, HLP	TIA	Hemodynamic	L hemiparesis	Bil lacunar infarcts + R small cortical infact	R ICS	R opthalmic A→	Acom→R ACA	Affected MCAt including BZ + non-affected BZ (G5)
10	68/M	DM, HT, HLP	Completed stroke	A-to-A embolism	R hemiparesis	Bil lacunar infarcts + L small cortical infact	L ICS	Antegrade flow	None	Matched perfusion (G1)
11	62/M	DM, HT, HLP	Completed stroke	Unclassified	R hemiparesis	L lacunar infarct	L ICO	Acom→	None	Affected IBZ alone (G2)
12	52/F	DM, HT	Completed stroke	Unclassified	R hemiparesis, motor aphasia	L lacunar infarct	L ICO	Acom→	L PCA→LM	Affected IBZ and SBZ (G3)
13	70/M	HT	Completed stroke	A-to-A embolism	L hemiplegia, USN, anosgnosia	R small cortical infact	R ICO	R ACA→LM	A com→R ACA	Affected MCAt including BZ + non-affected BZ (G5)
14	69/M	HT	TIA	Hemodynamic	L hemiparesis	R small cortical infact	R ICO	R opthalmic A→	A com→R ACA	Bil MCAt including BZ (G6)
15	75/M	HT, AP	Completed stroke	A-to-A embolism	L hemiparesis	R small cortical infact	R ICO	None	None	Affected IBZ alone (G2)
16	69/M	DM	Completed stroke	Unclassified	Global aphasia	L small cortical infact	L ICO	Pcom→	None	Bil MCAt including BZ (G6)
17	58/M	DM, ASO	TIA	Hemodynamic	R hemiparesis, motor aphasia	L lacunar infarct	L MCS	L ACA, PCA→LM	A com→L ACA	Bil MCAt including BZ (G6)
18	60/M	DM, HT	Completed stroke	Unclassified	R hemiparesis	L lacunar infarct	L MCO	L ACA, PCA→LM	None	Affected MCAt including BZ (G4)
19	64/M	HT	Completed stroke	Hemodynamic	R hemiparesis	L lacunar infarct	L MCO	None	None	Matched perfusion (G1)
20	56/F	HT, HLP	Completed stroke	Unclassified	L hemiparesis	R lacunar infarcts	R MCO	R ACA→LM	None	Affected MCAt including BZ + non-affected BZ (G5)
21	67/M	HT, HLP	Completed stroke	Unclassified	R hemiparesis, R hemianopsia, anosognosia	L small cortical infacts	L MCO	L ACA, PCA→LM	None	Matched perfusion (G1)
22	71/F	HT, HLP	Completed stroke	Unclassified	R hemiparesis	None	L MCO	L ACA→LM	A com→L ACA	Affected IBZ alone (G2)
23	54/M	DM, HT	Asymptomatic			Bil lacunar infarcts	R MCO	R ACA, PCA→LM	None	Matched perfusion (G1)
24	69/M		Asymptomatic			L small cortical infacts	L MCO	L ACA→LM	None	Matched perfusion (G1)

Note.—Abbreviations are as follows: af indicates atrial fibrillation; AP, angina pectoris; ASO, arteriosclerosis obliterans; DM, diabetes mellitus; HLP, hyperlipidemia; IBZ, internal BZ; ICO, occlusion of the ICA; ICS, severe stenosis of the ICA; MCAt, MCA territory; MCO, occlusion of the M1 portion; MCS, severe stenosis of the M1 portion; HT, hypertension; MI, old myocardial infarction; SBZ, superficial BZ; USN, unilateral spatial neglect; Bil, bilateral.
* Defects at the onset in patients with TIA and at the time of hemodynamic studies in other patients.
† In patients who underwent conventional angiography or intra-arterial digital subtraction angiography.
‡ Number shows the type of the MP distribution.