Journal of magnetic resonance imaging : JMRI
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J Magn Reson Imaging · Apr 2016
Apparent diffusion coefficient-dependent voxelwise computed diffusion-weighted imaging: An approach for improving SNR and reducing T2 shine-through effects.
To introduce and evaluate a method for signal-to-noise ratio (SNR) improvement and T2 shine-through effect reduction in diffusion-weighted magnetic resonance imaging (DWI). ⋯ vcDWI is a promising approach for the reduction of T2 shine-through effects and improvement of SNR and CNR in DWI. The clinical significance of these improvements, especially regarding lesion detection, needs to be evaluated in larger prospective clinical studies.
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J Magn Reson Imaging · Apr 2016
Modified triexponential analysis of intravoxel incoherent motion for brain perfusion and diffusion.
To noninvasively obtain more detailed information on brain perfusion and diffusion using modified triexponential analysis. ⋯ Diffusion analysis with triexponential function enables noninvasive gathering of more detailed information on brain perfusion and diffusion.
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J Magn Reson Imaging · Apr 2016
Noise robust spatially regularized myelin water fraction mapping with the intrinsic B1-error correction based on the linearized version of the extended phase graph model.
To improve the quantification accuracy of transverse relaxometry by accounting for B1 -error, after minimizing slice profile imperfections. ⋯ The proposed method resulted in more accurate and noise robust myelin water fraction maps with improved depiction of subcortical WM structures.
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J Magn Reson Imaging · Apr 2016
Detection of pulmonary embolism with free-breathing dynamic contrast-enhanced MRI.
To evaluate the use of dynamic contrast-enhanced (DCE) magnetic resonance imaging (MRI) during free breathing for the detection of acute pulmonary embolism (PE). ⋯ Free-breathing DCE MRI may have potential use for the assessment of PE, and does not require patient cooperation in breath-holding.