Article Figures & Data
Figures
- FIG 1.
Exemplary cases of an imaging assessment with good (A–D) and poor (E–H) acute leptomeningeal collateral flow. A, CTA shows right proximal MCA occlusion (arrow) with a collateral score of 3. B, MR imaging shows mild leukoaraiosis with a total Fazekas score of 1. C, Delayed-phase CTA shows a short occlusive thrombus identified by the filling defect of contrast (between arrowheads, with a tracer tool for measuring thrombus length). D, NCCT shows an occlusive thrombus with the placement of a single ROI for measuring Hounsfield unit density (outlined region). E, CTA shows right proximal MCA occlusion (arrow) with a collateral score of zero. F, MR imaging shows severe leukoaraiosis with a total Fazekas score of 5. G, Delayed-phase CTA shows a long occlusive thrombus identified by the filling defect of contrast (between arrowheads, with a tracer tool for measuring thrombus length). H, NCCT shows an occlusive thrombus on multiple slices, with the placement of 2 ROIs for measuring Hounsfield unit density (outlined regions).
- FIG 2.
Flow diagram of the patients screened, enrolled, and analyzed in the study. ICT indicates internal carotid artery terminus.
Tables
- Table 1:
Clinical indicators independently associated with good acute leptomeningeal collateral flow on multivariate analysis
OR 95% CI P Value Female sex 0.59 0.17–1.93 .38 Age (for 1-year increase) 1.04 0.99–1.09 .10 NIHSS score on admission (for 1-point increase) 0.95 0.88–1.04 .29 Cardioembolic stroke subtype 0.17 0.02–0.87 .03 Reduced leukoaraiosis (total Fazekas scores of 0–2) 9.57 2.49–47.75 <.001 Thrombus length (for 1-mm increase) 0.93 0.84–1.01 .07 - Table 2:
Clinical indicators independently associated with good acute leptomeningeal collateral flow in patients with cardioembolic stroke on multivariate analysis
OR 95% CI P Value Female sex 0.81 0.21–2.87 .74 Age (for 1-year increase) 1.03 0.99–1.09 .14 NIHSS score on admission (for 1-point increase) 0.95 0.86–1.04 .26 Blood glucose level (for 1-mmol/L increase) 0.87 0.64–1.13 .30 Reduced leukoaraiosis (total Fazekas scores of 0–2) 5.79 1.40–29.61 .01 Thrombus length (for 1-mm increase) 0.91 0.82–0.99 .04
