1naresh
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No. Age (yr) Thromb. IA/IV Stroke Etiologya Infarct Territory Occluded Vessel HTb MR Imaging Characteristics of Qualifying Lesions (RSCI) Locationc Pattern Type ADC N RSCI Hypo-GRE Max. Diam. (mm) 1 63 IV Undetermined R Carot. M2 HI-1 Gad +/DWI- N 1 No 41 Cortical/same arterial territory 2 63 IA LV Dis. R Carot. M1 – Gad−/DWI+ D 1 No 5 Cortical/same arterial territory 3 77 IA Other R Carot. IC PH-2 Gad−/DWI+ D 2 No 5 Cortical/same arterial territory 4 42 IA Other R Carot. M1 PH-1 Gad+/DWI+ D 4 No 15 Multiple territories 5 63 IV LV Dis. L Carot. CC+M1 HI-2 Gad−/DWI+ D 1 No 7 Cortical/same arterial territory 6 74 IV + MT LV Dis. R Carot. CC+M1 PH-1 Gad+/DWI+ D 3 No 15 Cortical/same arterial territory 7 49 IV Undetermined L Carot. CC+M1 – Gad+/DWI− N 1 No 11 Cortical/same arterial territory 8 36 IA Other BA BA – Gad−/DWI+ D 1 No 23 Cortical/same arterial territory 9 40 IA Cardioembolic L Carot. M1 – Gad+/DWI− N 2 No 13 Cortical/same arterial territory 10 78 IV LV Dis. L Carot. CC+M1 HI-2 Gad+/DWI− N 1 Yes 15 Cortical/other arterial territory
Note:—IA indicates intra-arterial; Thromb., thrombolysis; HT, hemorrhagic transformation; N, normal ADC compared with the contralateral side; D, decreased ADC compared with contralateral side; N RSCI, number of areas of RSCI per patient; hypo-GRE, hypointensity on T2 gradient-echo-T2WI within the RSCI area; Max. Diam., maximum diameter of RSCI in millimeters measured on axial FLAIR; LV Dis., large-vessel disease etiology; Other, other etiology; R Carot., right internal carotid artery; L Carot., left internal carotid artery; M2, second segment of the middle cerebral artery; M1, first segment of the middle cerebral artery; IC, intracranial internal carotid artery; CC, cervical internal carotid artery; BA, basilar artery; MT, mechanical thrombectomy; Gad+, gadolinium enhancement on T1WI; Gad−, lack of gadolium enhancement on T1WI.
↵a According to the TOAST classification, patients younger than 56 years with associated patent foramen ovale and atrial septum aneurysm (patient 9) were classified under “cardioembolic.” “Other” etiology was myeloproliferative-disorder-associated coagulopathy in patient 3; paraneaoplastic coagulopathy in patient 4; and vertebral artery dissection in patient 8.
↵b According to the ECASS definition.4
↵c Location of the RSCI was compared with the acute infarct arterial territory.