Journal of magnetic resonance imaging : JMRI
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J Magn Reson Imaging · Apr 2017
Diagnostic accuracy of intracellular uptake rates calculated using dynamic Gd-EOB-DTPA-enhanced MRI for hepatic fibrosis stage.
To assess the diagnostic accuracy of intracellular uptake rates (Ki ), and other quantitative pharmacokinetic (PK) parameters, for hepatic fibrosis stage; to compare this accuracy with a previously published semiquantitative metric, contrast enhancement index (CEI); and to assess variability of these parameters between liver regions. ⋯ 2 J. Magn. Reson. Imaging 2017;45:1177-1185.
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J Magn Reson Imaging · Apr 2017
Three-dimensional T1 and T2* mapping of human lung parenchyma using interleaved saturation recovery with dual echo ultrashort echo time imaging (ITSR-DUTE).
To develop and assess a new technique for three-dimensional (3D) full lung T1 and T2* mapping using a single free breathing scan during a clinically feasible time. ⋯ 2 J. Magn. Reson. Imaging 2017;45:1097-1104.
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J Magn Reson Imaging · Apr 2017
Evaluation of the sacral nerve plexus in pelvic endometriosis by three-dimensional MR neurography.
To investigate the feasibility of three-dimensional MR neurography (3D MRN) for the sacral plexus using sampling perfection with application-optimized contrasts using different flip angle evolution (SPACE) sequences, and to demonstrate structural abnormalities in the pelvic nerve of women with pelvic endometriosis. ⋯ 3 J. Magn. Reson. Imaging 2017;45:1225-1231.
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J Magn Reson Imaging · Mar 2017
Review3D printing from MRI Data: Harnessing strengths and minimizing weaknesses.
3D printing facilitates the creation of accurate physical models of patient-specific anatomy from medical imaging datasets. While the majority of models to date are created from computed tomography (CT) data, there is increasing interest in creating models from other datasets, such as ultrasound and magnetic resonance imaging (MRI). ⋯ Here we review the basics of 3D printing, explore the current strengths and weaknesses of printing from MRI data as they pertain to model accuracy, and discuss considerations in the design of MRI sequences for 3D printing. Finally, we explore the future of 3D printing and MRI, including creative applications and new materials.
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J Magn Reson Imaging · Mar 2017
Concurrent decrease of brain white matter tracts' thicknesses and fractional anisotropy after antenatal hypoxia-ischemia detected with tract-based spatial statistics analysis.
To examine the extent of gray and white matter (WM) injury following global antenatal hypoxia-ischemia (H-I) and resulting in muscle hypertonia in newborns in a rabbit cerebral palsy model. ⋯ 1 J. Magn. Reson. Imaging 2017;45:829-838.