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Table 2: Plaque, perfusion, and RBANS test characteristics^{^a}
Parameter Group (n = 23) IPH(+) (n = 11) IPH(–) (n = 12) P
Ipsilateral plaque 
 IPH 11 (47.8) 11 (100.0) 0 (0.0) –
 Ulceration 12 (52.2) 8 (72.7) 4 (33.3) .06
 Max plaque thickness (mm) 5.4 (SD, 1.6) 6 (SD, 1.9) 4.8 (SD, 1.1) .08
 NASCET (%) 68.0 (SD, 18.9) 65.1 (SD, 23.8) 70.7 (SD, 13.5) .49
 Intraluminal thrombus 3 (13.0) 1 (9.1) 2 (16.7) 1.00
Contralateral plaque 
 Contra-IPH 6 (26.1) 3 (27.3) 3 (25.0) 1.00
 Contra-ulceration 12 (52.2) 6 (54.6) 6 (50.0) .83
 Contra-max plaque thickness (mm) 4.2 (SD, 1.7) 4.4 (SD, 1.9) 4.1 (SD, 1.4) .69
 Contra-NASCET (%) 34.3 (SD, 30.3) 32.7 (SD, 31.4) 35.2 (SD, 31.4) .85
 Contra-intraluminal thrombus 0 (0.0) 0 (0.0) 0 (0.0) –
Carotid intervention 
 Carotid endarterectomy 20 (87.0) 10 (90.9) 10 (83.3) .59
 Right-sided intervention 14 (60.9) 7 (63.6) 4 (36.4) 1.00
 Duration (min)^{^b} 133.1 (SD, 33.6) 132.2 (SD, 33.3) 134.1 (SD, 36.0) .90
Perfusion 
 Total CBF 34.2 (SD, 7.7) 31.5 (SD, 8.5) 36.7 (SD, 6.4) .11
 Total CBV 4.8 (SD, 0.9) 4.9 (SD, 1.1) 4.8 (SD, 0.8) .92
 Total MTT 8.3 (SD, 1.7) 9.0 (SD, 2.0) 7.6 (SD, 1.2) .049
RBANS 
 Education (yr) 15.2 (SD, 2.7) 14.8 (SD, 2.0) 15.5 (SD, 3.2) .55
 RBANS-1 ,≤ 80 baseline 6 (26.1) 1 (9.1) 5 (41.7) .16
 RBANS-1, preintervention (days) 28.5 (SD, 23.5) 33 (SD, 18.8) 24.3 (SD, 27.2) .39
 Intervention to RBANS-2 (days) 212.0 (SD, 255.3) 223.1 (SD, 249.5) 201.9 (SD, 250.0) .84
 RBANS-1 time to RBANS-2 (days) 266.6 (SD, 258.1) 243.9 (SD, 259.4) 287.3 (SD, 266.7) .70
Note:—– indicates not assessed; max, maximum.
↵a Data are mean (SD) or No (%).
↵b Assessed for 20/23.