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
Imaging of the lumbar plexus: Optimized refocusing flip angle train design for 3D TSE.
To study the effects of refocusing angle modulation with 3D turbo spin echo (TSE) on signal and sharpness of small oblique nerves embedded in muscle and suppressed fat in the lumbar plexus. ⋯ An optimized flip angle train in 3D TSE imaging of the lumbar plexus considering geometry-specific blurring effects from both the nerve and the surrounding tissue can improve the delineation of small nerves.
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J Magn Reson Imaging · Apr 2016
Characterization of breast masses as benign or malignant at 3.0T MRI with whole-lesion histogram analysis of the apparent diffusion coefficient.
To investigate the utility of whole-lesion apparent diffusion coefficient (ADC) histogram analysis in capturing breast lesion heterogeneity and determine which ADC metric may help best differentiate benign from malignant breast mass lesions at 3.0T magnetic resonance imaging (MRI). ⋯ These results suggest that whole-lesion ADC histogram analysis may facilitate the differentiation between benign and malignant breast mass lesions.
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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.