Journal of magnetic resonance imaging : JMRI
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J Magn Reson Imaging · Jun 2020
Longitudinal Reproducibility of MR Perfusion Using 3D Pseudocontinuous Arterial Spin Labeling With Hadamard-Encoded Multiple Postlabeling Delays.
Arterial spin labeling (ASL) can be confounded by varying arterial transit times (ATT) across the brain and with disease. Hadamard encoding schemes can be applied to 3D pseudocontinuous ASL (pCASL) to acquire ASL data with multiple postlabeling delays (PLDs) to estimate ATT and then correct cerebral blood flow (CBF). ⋯ 1 Technical Efficacy Stage: 2 J. Magn. Reson. Imaging 2020;51:1846-1853.
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J Magn Reson Imaging · Jun 2020
Scan-Rescan Repeatability and Impact of B0 and B1 Field Nonuniformity Corrections in Single-Point Whole-Brain Macromolecular Proton Fraction Mapping.
Single-point macromolecular proton fraction (MPF) mapping is a recent quantitative MRI method for fast assessment of brain myelination. Information about reproducibility and sensitivity of MPF mapping to magnetic field nonuniformity is important for clinical applications. ⋯ 2 Technical Efficacy: Stage 1 J. Magn. Reson. Imaging 2020;51:1789-1798.
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J Magn Reson Imaging · Jun 2020
Multiparametric Quantitative Brain MRI in Neurological and Hepatic Forms of Wilson's Disease.
In Wilson's disease (WD), demyelination, rarefaction, gliosis, and iron accumulation in the deep gray matter cause opposing effects on T2 -weighted MR signal. However, the degree and interplay of these changes in chronically treated WD patients has not been quantitatively studied. ⋯ 2 Technical Efficacy Stage: 3 J. Magn. Reson. Imaging 2020;51:1829-1835.
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J Magn Reson Imaging · Jun 2020
Extracting Voxel-Based Cartilage Relaxometry Features in Hip Osteoarthritis Subjects Using Principal Component Analysis.
MRI-based relaxation time measurements provide quantitative assessment of cartilage biochemistry. Identifying distinctive relaxometry features in hip osteoarthritis (OA) might provide important information on regional disease variability. ⋯ 1 Technical Efficacy Stage: 2 J. Magn. Reson. Imaging 2020;51:1708-1719.
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J Magn Reson Imaging · Jun 2020
Multiparametric MRI-Based Radiomics for Prostate Cancer Screening With PSA in 4-10 ng/mL to Reduce Unnecessary Biopsies.
Whether men with a prostate-specific antigen (PSA) level of 4-10 ng/mL should be recommended for a biopsy is clinically challenging. ⋯ 3 Technical Efficacy Stage: 3 J. Magn. Reson. Imaging 2020;51:1890-1899.