BACKGROUND AND PURPOSE: Predicting response to rtPA is essential in the era of
endovascular therapy for stroke. The purpose of this study was to elucidate prognostic …

BACKGROUND AND PURPOSE: Collateral status at baseline is an independent
determinant of clinical outcome among patients with acute ischemic stroke. We sought to …

BACKGROUND AND PURPOSE: Although intra-arterial therapy for acute ischemic stroke is
associated with superior recanalization rates, improved clinical outcomes are inconsistently …

The aim of this study was to evaluate the impact of pretreatment quality of collaterals,
involving velocity and extent of collateral filling, on recanalization after intravenous …

Background and purpose Perfusion‐computed tomography‐source images (PCT‐SI) may
allow a dynamic assessment of leptomeningeal collateral arteries (LMC) filling and emptying …

ABSTRACT BACKGROUND AND PURPOSE Collaterals may compensate for reduced
blood flow in acute ischemic stroke, yet endurance and quality of collateral perfusion may …

Objective Leptomeningeal collaterals, which affects tissue fate, are still challenging to
assess. Four-dimensional CT angiography (4D CTA) originated from CT perfusion (CTP) …

Background and Purpose—Collaterals sustain the penumbra before recanalization and
offset infarct growth, yet the influence of baseline collateral flow on recanalization after …

Collateral status has prognostic and treatment implications in acute ischemic stroke (AIS)
patients. Unlike CTA, grading collaterals on MRA is not well studied. We aimed to evaluate …

ABSTRACT BACKGROUND The Alberta Stroke Program Early CT (ASPECTS)
leptomeningeal collaterals score on CT‐angiography helps in prognosticating functional …