Table 1 Baseline, imaging, and procedural characteristics of the study sample (n = 284), stratified by core overestimation.

From: Low baseline ischemic water uptake is directly related to overestimation of CT perfusion-derived ischemic core volume

Variable*

Core overestimation–yes (n = 45)

Core overestimation–no (n = 229)

Age (years)–median (IQR)

78 (67–82)

76 (64–82)

mRS before admission–median (IQR)

0 (0–2), n = 39

0 (0–1), n = 189

NIHSS–median (IQR)

16 (15–29)

15 (11–19), n = 220

Systolic blood pressure (mmHg)–mean (SD)

158 (35)

161 (28), n = 219

Diastolic blood pressure (mmHg)–mean (SD)

86 (18)

86 (15), n = 217

Weight (Kg)–median (IQR)†

70 (62–80), n = 38

80 (70–89), n = 164

ASPECTS–median (IQR)†

8 (7–9)

7 (6–9), n = 228

NWU (%)–median (IQR)†

5.6 (1.3–7.8)

7.6 (2.8–13.7)

pCore (mL)–median (IQR)†

34.2 (25.0–67.2)

8.7 (2.3–25.6)

Penumbra (mL)–median (IQR)

83.9 (49.1–141.1)

70.6 (43.6–105.9)

Successful reperfusion (eTICI 2c/3)–n (%)†

17 (39.5%)

121 (51%)

mRS90 0–2–n (%)

16 (42.1%), n = 38

47 (27.0%), n = 174

  1. IQR interquartile range; mRS modified Rankin scale; NIHSS National Institutes of Health Stroke Scale; ASPECTS Alberta Stroke Program Early CT Score; NWU net water uptake; pCore CTP-defined core volume, eTICI expanded Thrombolysis in Cerebral Infarction scale.
  2. * n is provided only in case of missing values.
  3. †Wilcoxon rank sum test p < 0.05.
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