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.