An Acute Ischemic Stroke Classification Instrument That Includes CT or MR Angiography: The Boston Acute Stroke Imaging Scale

Abstract

BACKGROUND AND PURPOSE:A simple classification instrument based on imaging that predicts outcomes in patients with actute ischemic stroke is lacking. We tested the hypotheses that the Boston Acute Stroke Imaging Scale (BASIS) classification instrument effectively predicts patient outcomes and is superior to the Alberta Stroke Program Early CT Score (ASPECTS) in predicting outcomes in acute ischemic stroke.

CT Angiography Clot Burden Score and Collateral Score: Correlation with Clinical and Radiologic Outcomes in Acute Middle Cerebral Artery Infarct

“…29 Proximal clot location is increasingly appreciated as an important determinant in outcome. 3,[30][31][32] Patients with a larger clot burden have been shown to have larger infarction volumes at baseline and poorer clinical outcomes. 33,34 The CBS is designed to be weighted to vessel location, assigning higher points to the terminal ICA and proximal MCA locations.…”

Comparing and Predicting the Costs and Outcomes of Patients with Major and Minor Stroke Using the Boston Acute Stroke Imaging Scale Neuroimaging Classification System

“…This population excluded TIA and is described in detail in Torres-Mozqueda et al 16 In 2005, 279 patients were identified who were admitted to the hospital from the emergency department with an admitting diagnosis of acute stroke. There were 15 patients who were excluded from the analysis because they had discharge diagnoses other than stroke (seizure, migraine, and neoplasia were the most common).…”

“…16 Briefly, patients were classified as having a major stroke if by using either CT or MR angiography, a proximal cerebral artery occlusion was identified or when a large infarct was identified in a patient with patent major cerebral arteries. Proximal cerebral artery occlusion was defined as an occlusion of the distal (intracranial) internal carotid artery, the proximal (M1 or M2) middle cerebral artery, or the basilar artery.…”

“…Outcomes, but not resource use or hospital cost, for the 2000 cohort have been previously reported. 16 …”

Multimodal imaging protocols and their predictive role in acute stroke functional outcome

“…Однако изолированная окклюзия ВСА (без вовлечения пе-редней хориоидальной артерии) независимо ассо-циирована с БФИ [56][57][58][59][60][61]. Установлено, что шкалы BASIS и CBS превосходят ASPECTS в отношении прогнозирования ФИ, при этом CBS имеет боль-шую чувствительность, а BASIS -специфичность [62][63][64][65]. ФИ напрямую коррелирует как со степе-нью коллатерального кровотока, так и реканализа-цией артерий, так как от них напрямую зависит КОИ [66][67][68][69][70].…”