Perfusion Deficits Detected by Arterial Spin-Labeling in Patients with TIA with Negative Diffusion and Vascular Imaging

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Perfusion deficits detected by arterial spin-labeling in patients with TIA with negative diffusion and vascular imaging.

BACKGROUND AND PURPOSE A substantial portion of clinically diagnosed TIA cases is imaging-negative. The purpose of the current study is to determine if arterial spin-labeling is helpful in detecting perfusion abnormalities in patients presenting clinically with TIA. MATERIALS AND METHODS Pseudocontinuous arterial spin-labeling with 3D background-suppressed gradient and spin-echo was acquired ...

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BACKGROUND Myocardial arterial spin labeling (ASL) is a noninvasive MRI based technique that is capable of measuring myocardial blood flow (MBF) in humans. It suffers from poor sensitivity to MBF due to high physiological noise (PN). This study aims to determine if the sensitivity of myocardial ASL to MBF can be improved by reducing image acquisition time, via parallel imaging. METHODS Myocar...

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Perfusion imaging using arterial spin labeling.

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ژورنال

عنوان ژورنال: American Journal of Neuroradiology

سال: 2013

ISSN: 0195-6108,1936-959X

DOI: 10.3174/ajnr.a3551