Perfusion Computed Tomography (PCT) in Patients with Acute Stroke
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منابع مشابه
Comparison of perfusion computed tomography and computed tomography angiography source images with perfusion-weighted imaging and diffusion-weighted imaging in patients with acute stroke of less than 6 hours' duration.
BACKGROUND AND PURPOSE We aimed to determine the diagnostic value of perfusion computed tomography (PCT) and CT angiography (CTA) including CTA source images (CTA-SI) in comparison with perfusion-weighted magnetic resonance imaging (MRI) (PWI) and diffusion-weighted MRI (DWI) in acute stroke <6 hours. METHODS Noncontrast-enhanced CT, PCT, CTA, stroke MRI, including PWI and DWI, and MR angiogr...
متن کاملComputed tomography workup of patients suspected of acute ischemic stroke: perfusion computed tomography adds value compared with clinical evaluation, noncontrast computed tomography, and computed tomography angiogram in terms of predicting outcome.
BACKGROUND AND PURPOSE To determine whether perfusion computed tomography (PCT) adds value to noncontrast head CT (NCT), CT angiogram (CTA), and clinical assessment in patients suspected of acute ischemic stroke. METHODS We retrospectively reviewed 165 patients with acute ischemic stroke. PCT was used to calculate the volumes of infarct core and ischemic penumbra on admission. Other imaging d...
متن کاملWhole-Brain Perfusion CT Using a Toggling Table - Technique to Predict Final Infarct Volume in Acute Ischemic Stroke CT-Ganzhirnperfusionsmessung durch „Toggling-Table-Technik“ zur Infarktvolumenvorhersage beim akuten ischämischen Schlaganfall
Purpose: To evaluate how accurately final infarct volume in acute ischemic stroke can be predicted with perfusion CT (PCT) using a 64-MDCT unit and the toggling table technique. Materials and Methods: Retrospective analysis of 89 patients with acute ischemic stroke who underwent CCT, CT angiography (CTA) and PCT using the “toggling table” technique within the first three hours after symptom ons...
متن کاملPerfusion Computed Tomography for the Evaluation of Acute Ischemic Stroke: Strengths and Pitfalls.
Ischemic stroke results from occlusion of a cerebral artery, and it is the leading cause of disability and the fifth leading cause of death in the United States. Cerebral artery occlusion results in irreversible death of a component of cerebral tissue, which is referred to as the core infarction. There is an additional component of brain tissue that is ischemic, but viable, which is commonly re...
متن کاملAccuracy of dynamic perfusion CT with deconvolution in detecting acute hemispheric stroke.
BACKGROUND AND PURPOSE Dynamic perfusion CT (PCT) with deconvolution produces maps of time-to-peak (TTP), mean transit time (MTT), regional cerebral blood flow (rCBF), and regional cerebral blood volume (rCBV), with a computerized automated map of the infarct and penumbra. We determined the accuracy of these maps in patients with suspected acute hemispheric stroke. METHODS Forty-six patients ...
متن کاملOptimal perfusion computed tomographic thresholds for ischemic core and penumbra are not time dependent in the clinically relevant time window.
BACKGROUND AND PURPOSE This study aims to determine whether perfusion computed tomographic (PCT) thresholds for delineating the ischemic core and penumbra are time dependent or time independent in patients presenting with symptoms of acute stroke. METHODS Two hundred seventeen patients were evaluated in a retrospective, multicenter study. Patients were divided into those with either persisten...
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