학술논문
Recent Administration of Iodinated Contrast Renders Core Infarct Estimation Inaccurate Using RAPID Software.
Document Type
article
Author
Source
AJNR. American journal of neuroradiology. 41(12)
Subject
Language
Abstract
Background and purposeAutomated CTP software is increasingly used for extended window emergent large-vessel occlusion to quantify core infarct. We aimed to assess whether RAPID software underestimates core infarct in patients with an extended window recently receiving IV iodinated contrast.Materials and methodsWe reviewed a prospective, single-center data base of 271 consecutive patients who underwent CTA ± CTP for acute ischemic stroke from May 2018 through January 2019. Patients with emergent large-vessel occlusion confirmed by CTA in the extended window (>6 hours since last known well) and CTP with RAPID postprocessing were included. Two blinded raters independently assessed CT ASPECTS on NCCT performed at the time of CTP. RAPID software used relative cerebral blood flow of