Skip to main content
. Author manuscript; available in PMC: 2021 Mar 1.
Published in final edited form as: J Neuroimaging. 2019 Nov 24;30(2):219–226. doi: 10.1111/jon.12682

Table 4.

Imaging variables for patients who met DAWN or DEFUSE-3 perfusion imaging criteria.

Unfavorable ASPECTS (n=23) Favorable ASPECTS (n=137) p-value
ASPECTS, median (IQR) 5 (4-5) 8 (7-9) <0.01
Volume of ischemic core, median rCBF<30% mL (IQR) 19 (8-49) 6 (0-20) <0.01
Volume of perfusion deficit, median Tmax >6s mL (IQR) 163 (94-181) [n=23] 116 (72-160) [n=136] 0.04
Mismatch ratio, median (IQR) 5.2 (3.0-11.4) [n=20] 6.9 (3.7-17.1) [n=88] 0.27

ASPECTS: Alberta Stroke Program Early CT Scale, n: number of patients, IQR: interquartile range, rCBF: regional cerebral blood flow, Tmax >6s: time to tissue maximum residue function > 6 seconds.