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Table 2 Comparison between three groups of collareral status

From: Collateral status evaluation coupled with time window by dynamic axial computed tomographic angiography with a focus on the middle cerebral artery for mechanical thrombectomy

dynax-CTA: collateral status All Poor Intermediate Good P
n 48 19 25 4  
Age, median (IQR) years 81.5 (77–86) 83 (76–87) 81 (79–83) 73 (66–83) ns
Female (sex) 34 (70.8%) 10 (52.6%) 20 (80%) 4 (100%) ns
ASPECTS, median (IQR) 10 (7–10) 10 (6–10) 10 (7.5–10) 9.5 (7.5–10) ns
OtD, median (IQR) hours 2.62 (0.84–8.32) 1.67 (0.75–4.98) 3.65 (0.94–10) 5.73 (2.44–11.13) ns
DtI, median (IQR) hours 0.38 (0.32–0.5) 0.37 (0.32–0.45) 0.38 (0.28–0.53) 0.38 (0.32–1.23) ns
ItP, median (IQR) hours 0.93 (0.64–1.29) 0.93 (0.58–1.27) 0.8 (0.64–1.39) 1.21 (0.85–1.33) ns
PtR, median (IQR) hours 0.66 (0.45–1.1) 0.7 (0.47–1.2) 0.59 (0.46–1.04) 0.65 (0.27–1.93) ns
OtR, median (IQR) hours 5.38 (3.24–10.02) 4.3 (2.85–8.58) 6.05 (3.33–11.63) 8.3 (6.27–12.89) ns
NIHSS adm, median (IQR) 19 (15–22) 19 (17–22) 18 (14.5–22) 16 (14–24.8) ns
NIHSS at 24, median (IQR) 4 (1–12.5) 7 (2–20) 2 (0–8.5) 5 (1–11.25) ns
Alteplase therapy 15 (31.3%) 6 (31.6%) 8 (32.0%) 1 (25.0%) ns
Successful reperfusion (mTICI 2b/3) 46 (95.8%) 18 (94.7%) 24 (96.0%) 4 (100%) ns
MNI, n (%) 34 (70.8%) 10 (52.6%) 21 (84.0%) 3 (75%) ns
  1. dynax–CTA Dynamic axial computed tomography angiography, IQR Interquartile range, ItP Imaging-to-puncture time, MNI Major neurological improvement, mTICI Modified thrombolysis in cerebral infarction, NIHSS National Institutes of Health Stroke Scale, OtD Onset-to-door time, OtR Onset-to-reperfusion time