Journal of magnetic resonance imaging : JMRI
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J Magn Reson Imaging · Sep 2011
Comparative StudyQuantification of renal perfusion: comparison of arterial spin labeling and dynamic contrast-enhanced MRI.
To provide the first comparison of absolute renal perfusion obtained by arterial spin labeling (ASL) and separable compartment modeling of dynamic contrast-enhanced (DCE) magnetic resonance imaging (MRI). Moreover, we provide the first application of the dual bolus approach to quantitative DCE-MRI perfusion measurements in the kidney. ⋯ ASL and DCE-MRI provided similar measures of absolute perfusion in the renal cortex, offering both noncontrast and contrast-based alternatives to improve current renal MRI assessment of kidney function.
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J Magn Reson Imaging · Sep 2011
Very short echo time improves the precision of glutamate detection at 3T in 1H magnetic resonance spectroscopy.
To examine the precision of glutamate detection using a very short echo time (TE) phase rotation STEAM (PR-STEAM) sequence. ⋯ In the absence of spectral editing, glutamate is best detected in the human brain at 3T using very short TEs.