Journal of magnetic resonance imaging : JMRI
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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
Age-independent myocardial infarct quantification by signal intensity percent infarct mapping in swine.
To test whether signal intensity percent infarct mapping (SI-PIM) accurately determines the size of myocardial infarct (MI) regardless of infarct age. ⋯ Our results indicate that the SI-PIM method can accurately determine MI volume regardless of the pathological stage of MI. Once tested, it may prove to be useful for the clinic.
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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
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.