Diffusion-weighted magnetic resonance (MR) imaging provides image contrast that is
different from that provided by conventional MR techniques. It is particularly sensitive for …

Magnetic resonance imaging techniques measuring CBF have developed rapidly in the last
decade, resulting in a wide range of available methods. The most successful approaches …

Background and Purpose—Diffusion-weighted imaging (DWI) and perfusion-weighted
imaging (PWI) are relatively new MR techniques increasingly used in acute stroke. During …

Diffusion magnetic resonance imaging provides an early marker of acute cerebral ischemic
injury. Thrombolytic reversal of diffusion abnormalities has not previously been …

PURPOSE: To compare the diagnostic accuracy of computed tomography (CT) and
magnetic resonance (MR) imaging in a consecutive series of patients at presentation to the …

Background and Purpose—This study was designed to analyze whether early diffusion-
weighted imaging (DWI) provides reliable quantitative information for the prediction of stroke …

BACKGROUND AND PURPOSE: Serial study of such MR parameters as diffusion-weighted
imaging (DWI), apparent diffusion coefficient (ADC), ADC with fluid-attenuated inversion …

Anumber of techniques have been developed during the past four decades to evaluate
cerebral perfusion. The oldest used 133Xe, a lipophilic radioactive tracer that easily diffuses …

Background and Purpose—We sought to characterize the evolution of acute ischemic stroke
by MRI and its relationship to patients' neurological outcome. Methods—Fourteen patients …

A prospective longitudinal diffusion‐weighted and perfusion‐weighted magnetic resonance
imaging (DWI/PWI) study of stroke patients (n= 21) at five distinct time points was performed …