Journal of magnetic resonance imaging : JMRI
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J Magn Reson Imaging · Dec 2017
B1 mapping for bias-correction in quantitative T1 imaging of the brain at 3T using standard pulse sequences.
B1 mapping is important for many quantitative imaging protocols, particularly those that include whole-brain T1 mapping using the variable flip angle (VFA) technique. However, B1 mapping sequences are not typically available on many magnetic resonance imaging (MRI) scanners. The aim of this work was to demonstrate that B1 mapping implemented using standard scanner product pulse sequences can produce B1 (and VFA T1 ) maps comparable in quality and acquisition time to advanced techniques. ⋯ 1 Technical Efficacy: Stage 1 J. Magn. Reson. Imaging 2017;46:1673-1682.
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J Magn Reson Imaging · Dec 2017
Comparative StudyComparison between types I and II epithelial ovarian cancer using histogram analysis of monoexponential, biexponential, and stretched-exponential diffusion models.
To evaluate the utility of histogram analysis of monoexponential, biexponential, and stretched-exponential models to a dualistic model of epithelial ovarian cancer (EOC). ⋯ 4 Technical Efficacy: Stage 1 J. Magn. Reson. Imaging 2017;46:1797-1809.
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J Magn Reson Imaging · Nov 2017
Fast bilateral breast coverage with high spectral and spatial resolution (HiSS) MRI at 3T.
To develop and assess a full-coverage, sensitivity encoding (SENSE)-accelerated breast high spatial and spectral resolution (HiSS) magnetic resonance imaging (MRI) within clinically reasonable times as a potential nonenhanced MRI protocol for breast density measurement or breast cancer screening. ⋯ 2 Technical Efficacy: Stage 1 J. Magn. Reson. Imaging 2017;46:1341-1348.
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J Magn Reson Imaging · Nov 2017
Diffusion kurtosis imaging for differentiating borderline from malignant epithelial ovarian tumors: A correlation with Ki-67 expression.
To investigate the use of diffusion kurtosis imaging (DKI) in differentiating borderline from malignant epithelial ovarian tumors (MEOTs) and to correlate DKI parameters with Ki-67 expression. ⋯ 1 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2017;46:1499-1506.