Journal of magnetic resonance imaging : JMRI
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J Magn Reson Imaging · Dec 2018
Reliability of neurometabolite detection with two-dimensional localized correlation spectroscopy at 3T.
Two-dimensional localized correlational spectroscopy (2D L-COSY) has been applied in vivo to investigate metabolic profiles in many disorders due to its ability to detect several metabolites simultaneously. Successful application of this technique depends on the reliability of the detection and understanding of the variability result from test-retest measurements. ⋯ 2 Technical Efficacy: Stage 1 J. Magn. Reson. Imaging 2018;48:1559-1569.
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J Magn Reson Imaging · Dec 2018
3D ultrashort echo time MRI of the lung using stack-of-spirals and spherical k-Space coverages: Evaluation in healthy volunteers and parenchymal diseases.
Ultrashort echo time (UTE) has been shown to improve lung MRI quality in three dimensions. The evaluation of 3D-UTE stack-of-spirals VIBE (3D-USV) sequence for parenchymal diseases and a comparison of performance with that of a spherical mode of acquisition is needed. ⋯ 2 Technical Efficacy: Stage 1 J. Magn. Reson. Imaging 2018;48:1489-1497.
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J Magn Reson Imaging · Nov 2018
Analysis of diffusion tensor measurements of the human cervical spinal cord based on semiautomatic segmentation of the white and gray matter.
Segmentation of the gray and white matter (GM, WM) of the human spinal cord in MRI images as well as the analysis of spinal cord diffusivity are challenging. When appropriately segmented, diffusion tensor imaging (DTI) of the spinal cord might be beneficial in the diagnosis and prognosis of several diseases. ⋯ 1 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2018;47:1217-1227.
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Exponential fitting of multiecho spin echo sequences with skipped echoes is still commonly used for quantification of transverse relaxation (T2 ). ⋯ 2 Technical Efficacy: Stage 1 J. Magn. Reson. Imaging 2018;47:1432-1440.
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J Magn Reson Imaging · Nov 2018
Quantitative susceptibility mapping across two clinical field strengths: Contrast-to-noise ratio enhancement at 1.5T.
Quantitative susceptibility mapping (QSM) is an MRI postprocessing technique that allows quantification of the spatial distribution of tissue magnetic susceptibility in vivo. Contributing sources include iron, blood products, calcium, myelin, and lipid content. ⋯ 1 Technical Efficacy: Stage 1 J. Magn. Reson. Imaging 2018;47:1410-1420.