Article Figures & Data
Figures
- Fig 1.
Patterns of contralateral and ipsilateral vessel filling for all patients and for 4 different subgroups. A, Ipsilateral and contralateral vessel filling of all patients (n = 61). Time in seconds after contrast arrival in the ICA was calculated for each volume and averaged for multiple patients for each different time point in seconds. Green dots represent mean filling with time after contrast arrival for the ipsilateral (ie, affected) hemisphere. Blue dots represent mean filling with time after contrast arrival in the ICA for the unaffected contralateral hemisphere. Error bars represent 1 standard error of the mean (1 standard error). Dotted vertical lines indicate the optimal assessment interval, which is defined by the presence of the 3 highest average collateral scores in both the affected and unaffected hemispheres. B, Patients with poor collateral filling of <50% of the ischemic territory and slow filling, defined as ipsilateral filling reaching optimal filling >4.5 seconds later than contralateral optimal vessel filling (n = 5). C, Patients with poor collateral filling of <50% of the ischemic territory but with fast filling within 4.5 seconds after contralateral optimal vessel filling (n = 12). D, Patients with good collateral filling of >50% and slow filling (n = 22). E, Patients with good collateral filling of >50% and fast filling (n = 22).
Tables
Poor radiologic outcome at follow-up (infarct volume ≥70 mL) in relation to CSs (N = 61)
Poor Outcome/Characteristic Present (n/N) (%) Poor Outcome/Characteristic Absent (n/N) (%) Risk Ratio (95% CI) Single-phase CTA Poor extent of collateral fillinga 25/42 (60%) 8/19 (42%) 1.4 (0.8–2.5) Dynamic CTA, extent of filling CS 0–1 – – – CS 2 5/5 (100%) 7/19 (37%)b 2.7 (1.5–4.9) CS 3 9/12 (75%) 7/19 (37%)b 2.0 (1.0–4.0) CS 4 8/13 (62%) 7/19 (37%)b 1.7 (0.8–3.5) CS 5 4/12 (33%) 7/19 (37%)b 0.9 (0.4–2.4) Dynamic CTA Poor extent of collateral fillinga 14/17 (82%) 19/44 (43%) 1.9 (1.3–2.9) Dynamic CTA, extent and timing of filling Poor collaterals and slow filling 4/5 (80%) 9/22 (41%)c 2.0 (1.0–3.8) Poor collaterals and fast filling 23/30 (77%) 9/22 (41%)c 1.9 (1.1–3.2) Good collaterals and slow filling 14/26 (54%) 9/22 (41%) 1.3 (0.7–2.4)
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