Table 2.

Volumetric and spatial accuracy between baseline CTP ischemic lesions and follow-up DWI lesions for patients with eTICI 2b-2c vs. eTICI 3

	eTICI 2b-2c (n = 29)	eTICI 3 (n = 30)	Total (eTICI 2b-3 [n = 59])
Median baseline ischemic core volume on CTP (mL)–median (IQR)	13.0 (5.5–32.5)	20.0 (7.8–47.3)	16.0 (8.0–47.0)
Follow-up DWI infarct volume (mL)–median (IQR)	17.7 (5.6–69.0)	10.1 (5.1–37.3)	10.8 (5.5–42.2)
Median volumetric difference (mL)–median (IQR)	6 (−10 to 47) 17 (7.2–68.7)	−3 (−19 to 5) 13.3 (3.7–43.8)	0 (−12; 21) 16.3 (5.8–48.2)
Median Dice similarity coefficient–median (IQR)	0.12 (0.00–0.35)	0.20 (0.03–0.36)	0.20 (0.01–0.35)
Median positive predictive value–median (IQR)	0.34 (0.12–0.44)	0.27 (0.12–0.52)	0.30 (0.13–0.47)

CTP  CT perfusion, DWI  diffusion-weighted imaging, eTICI  expanded Treatment in Cerebral Infarction, IQR  interquartile range