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Table 3: Number of patients with early ischemic signs in different regions according to the ASPECTS on MDCT vs FDCT (n = 24)
ASPECTS
Early Ischemic Signs on MDCT Early Ischemic Signs on FDCT Early Ischemic Signs on MDCT and FDCT Sensitivity Specificity
M1 (No.) (%) 2 (8.3) 3 (12.5) 1 (4.2) 50 90.1
M2 (No.) (%) 2 (8.3) 7 (29.2) 2 (8.3) 100 77.3
M3 (No.) (%) 1 (4.2) 1 (4.2) 0 (0) 0 95.8
C (No.) (%) 14 (58.3) 14 (58.3) 13 (54.2) 92.9 90
L (No.) (%) 15 (62.5) 21 (58.3) 14 (58.3) 93.2 22.2
IC (No.) (%) 3 (12.5) 4 (16.7) 1 (4.2) 33.3 85.7
I (No.) (%) 18 (75) 22 (91.7) 18 (75) 100 33.3
M4 (No.) (%) 5 (20.8) 8 (33.3) 5 (20.8) 100 84.2
M5 (No.) (%) 4 (16.7) 6 (25) 3 (12.5) 75 85
M6 (No.) (%) 3 (12.5) 0 (0) 0 (0) NA NA
Overall (No.) (% of 240 locations) 67 (27.9) 86 (35.8) 57 (23.8) 85.1 83.2
Dense media sign (No. positive) (%) 18 (75) 15 (62.5) 13 (54.2) 72.2 66.7
Note:—Anatomic regions according to the Alberta Stroke Program Early CT Score: M1–M6 indicate cortical regions of the medial cerebral artery territory; C, caudate nucleus; L, lentiform nucleus; IC, internal capsule; I, insula; NA, not applicable.