Journal of magnetic resonance imaging : JMRI
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J Magn Reson Imaging · Mar 2006
Elimination of residual blood flow-related signal in 3D volume-selective TSE arterial wall imaging using velocity-sensitive phase reconstruction.
To improve 3D volume-selective turbo spin-echo (TSE) arterial wall imaging by introducing velocity phase sensitivity to the sequence. ⋯ Introducing velocity sensitivity reduces unwanted, potentially misleading residual blood in 3D volume-selective vessel wall imaging.
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J Magn Reson Imaging · Mar 2006
Magnetic resonance brain perfusion imaging with voxel-specific arterial input functions.
To propose an automatic method for estimating voxel-specific arterial input functions (AIFs) in dynamic contrast brain perfusion imaging. ⋯ Initial results suggest that the proposed method can replace the tedious and difficult task of manually selecting an AIF, while simultaneously providing better differentiation between time-dependent hemodynamic parameters.
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J Magn Reson Imaging · Mar 2006
Swallowing, arterial pulsation, and breathing induce motion artifacts in carotid artery MRI.
To identify and quantify the potential sources of motion in carotid artery imaging. ⋯ Pulsation, breathing, and swallowing are sources of significant motion in the carotid artery wall. Such motion should be considered in the future to improve carotid artery image quality.