Accuracy of the Alberta Stroke Program Early CT Score during the First 3 Hours of Middle Cerebral Artery Stroke: Comparison of Noncontrast CT, CT Angiography Source Images, and CT Perfusion
نویسندگان
چکیده
منابع مشابه
Accuracy of the Alberta Stroke Program Early CT Score during the first 3 hours of middle cerebral artery stroke: comparison of noncontrast CT, CT angiography source images, and CT perfusion.
BACKGROUND AND PURPOSE The Alberta Stroke Program Early CT Score (ASPECTS) is a reliable method of delineating the extent of middle cerebral artery (MCA) stroke. Our aim was to retrospectively compare the accuracy of ASPECTS on noncontrast CT, CT angiography (CTA) source images, and CT perfusion maps of cerebral blood volume (CBV) during the first 3 hours of middle cerebral artery (MCA) stroke....
متن کاملAutomated CT Perfusion Ischemic Core Volume and Noncontrast CT ASPECTS (Alberta Stroke Program Early CT Score)
The quantification of infarct extent is a critical aspect in patient selection for reperfusion therapy in acute ischemic stroke. Among the available and validated modalities, the semiquantitative Alberta Stroke Program Early CT Score (ASPECTS) and the automated quantitative RAPID computed tomography (CT) perfusion (CTP) platform have been used to select patients for endovascular treatment of an...
متن کاملAlberta Stroke Program Early CT Scoring of CT perfusion in early stroke visualization and assessment.
BACKGROUND AND PURPOSE Qualitative CT perfusion (CTP) assessment by using the Alberta Stroke Program Early CT Score (ASPECTS) allows rapid calculation of infarct extent for middle cerebral artery infarcts. Published thresholds exist for noncontrast CT (NCCT) ASPECTS, which may distinguish outcome/complication risk, but early ischemic signs are difficult to detect. We hypothesized that different...
متن کاملInterobserver reliability of baseline noncontrast CT Alberta Stroke Program Early CT Score for intra-arterial stroke treatment selection.
BACKGROUND AND PURPOSE Early ischemic changes on pretreatment NCCT quantified using ASPECTS have been demonstrated to predict outcomes after IAT. We sought to determine the interobserver reliability of ASPECTS for patients with AIS with PAO and to determine whether pretreatment ASPECTS dichotomized at 7 would demonstrate at least substantial κ agreement. MATERIALS AND METHODS From our prospec...
متن کاملImpact of pretreatment noncontrast CT Alberta Stroke Program Early CT Score on clinical outcome after intra-arterial stroke therapy.
BACKGROUND AND PURPOSE The efficacy of intra-arterial treatment remains uncertain. Because most centers performing IAT use noncontrast CT (NCCT) imaging, it is critical to understand the impact of NCCT findings on treatment outcomes. This study aimed to compare functional independence and safety among patients undergoing intra-arterial treatment stratified by the extent of ischemic change on pr...
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ژورنال
عنوان ژورنال: American Journal of Neuroradiology
سال: 2008
ISSN: 0195-6108,1936-959X
DOI: 10.3174/ajnr.a0975