Using standard first-pass perfusion computed tomographic data to evaluate collateral flow in acute ischemic stroke.
作者： Chen H , Wu B , Liu N , Wintermark M , Su Z
DOI: 10.1161/STROKEAHA.114.008015
关键词: Acute ischemic stroke 、 Computed tomographic 、 Radiology 、 Collateral circulation 、 Arterial occlusion 、 Middle cerebral artery 、 Digital subtraction angiography 、 Medicine 、 Perfusion 、 Maximum intensity projection
摘要: Background and Purpose—The study aims to determine whether volume transfer constant (Ktrans) maps calculated from first-pass perfusion computed tomographic data are a biomarker of cerebral collateral circulation predict the clinical outcome in acute ischemic stroke caused by proximal arterial occlusion. Methods—Consecutive patients with occlusion middle artery who received endovascular treatment were enrolled. Digital subtraction angiography, angiography maximum intensity projection, Ktrans used assess their circulation. Agreement between different methods was evaluated using χ2 tests. The correlations various radiological outcomes flow score, as determined maps, calculated. Results—Seventy-five included, comprising 39 women 36 men, mean age 65.3±14.6 years. Collateral score on had highest correlation digital subtract...
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