Journal of magnetic resonance imaging : JMRI
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J Magn Reson Imaging · Jan 2019
Comparative StudyComparing the reproducibility of commonly used magnetic resonance spectroscopy techniques to quantify cerebral glutathione.
Cerebral glutathione (GSH), a marker of oxidative stress, has been quantified in neurodegenerative diseases and psychiatric disorders using proton magnetic resonance spectroscopy (MRS). Using a reproducible MRS technique is important, as it minimizes the impact of measurement technique variability on the study results and ensures that other studies can replicate the results. ⋯ 2 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2019;49:176-183.
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J Magn Reson Imaging · Jan 2019
Quantitative MRI of visually intact rotator cuff muscles by multiecho Dixon-based fat quantification and diffusion tensor imaging.
Quantitative MRI allows assessment of shoulder rotator cuff (RC) muscles by Dixon MR sequences with calculation of fractional fat content (FF%) maps and diffusion tensor imaging (DTI) including tractography. ⋯ 2 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2019;49:109-117.
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J Magn Reson Imaging · Jan 2019
Intravoxel incoherent motion diffusion-weighted MRI of invasive breast cancer: Correlation with prognostic factors and kinetic features acquired with computer-aided diagnosis.
As both intravoxel incoherent motion (IVIM) modeling and dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) provide perfusion parameters, IVIM-derived perfusion parameters might be expected to correlate with the kinetic features from DCE-MRI. ⋯ 4 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2019;49:118-130.
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J Magn Reson Imaging · Jan 2019
Esophageal carcinoma: Intravoxel incoherent motion diffusion-weighted MRI parameters and histopathological correlations.
The pathological grade of esophageal carcinoma is highly determinant of patient prognosis, but it still cannot be adequately evaluated preoperatively. Compared with conventional diffusion-weighted imaging (DWI), intravoxel incoherent motion (IVIM) diffusion-weighted MRI can separate true molecular diffusion and perfusion in tissues and has been shown to be useful in characterizing malignant tumors. There is no report that compared IVIM and conventional DWI in grading esophageal carcinoma. ⋯ 1 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2019;49:253-261.
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J Magn Reson Imaging · Dec 2018
Segmentation of gray matter, white matter, and CSF with fluid and white matter suppression using MP2RAGE.
MP2RAGE can generate uniform T1 -weighted images, which have been used for brain segmentation. However, there remain concerns about carrying out fast brain segmentation. ⋯ 2 Technical Efficacy: Stage 1 J. Magn. Reson. Imaging 2018;48:1540-1550.