Journal of magnetic resonance imaging : JMRI
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J Magn Reson Imaging · Feb 2019
Disrupted functional connectivity and activity in the white matter of the sensorimotor system in patients with pontine strokes.
White matter (WM) blood oxygenation level-dependent (BOLD) signals are reported to be related to neural activity. However, sensitivity of WM BOLD signals to disease remains unclear. ⋯ 2 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2019;49:478-486.
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J Magn Reson Imaging · Feb 2019
Single scan quantitative gradient recalled echo MRI for evaluation of tissue damage in lesions and normal appearing gray and white matter in multiple sclerosis.
Multiple sclerosis (MS) is a chronic disease affecting the human central nervous system (CNS) and leading to neurologic disability. Although conventional MRI techniques can readily detect focal white matter (WM) lesions, it remains challenging to quantify tissue damage in normal-appearing gray matter (GM) and WM. ⋯ 2 Technical Efficacy: Stage 3 J. Magn. Reson. Imaging 2019;49:487-498.
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J Magn Reson Imaging · Feb 2019
Simultaneous Evaluation of Lung Anatomy and Ventilation Using 4D Respiratory-Motion-Resolved Ultrashort Echo Time Sparse MRI.
Computed tomography (CT) and spirometry are the current standard methods for assessing lung anatomy and pulmonary ventilation, respectively. However, CT provides limited ventilation information and spirometry only provides global measures of lung ventilation. Thus, a method that can enable simultaneous examination of lung anatomy and ventilation is of clinical interest. ⋯ 2 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2019;49:411-422.
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J Magn Reson Imaging · Feb 2019
3D convolutional neural networks for detection and severity staging of meniscus and PFJ cartilage morphological degenerative changes in osteoarthritis and anterior cruciate ligament subjects.
Semiquantitative assessment of MRI plays a central role in musculoskeletal research; however, in the clinical setting MRI reports often tend to be subjective and qualitative. Grading schemes utilized in research are not used because they are extraordinarily time-consuming and unfeasible in clinical practice. ⋯ 2 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2019;49:400-410.
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J Magn Reson Imaging · Feb 2019
Risk Stratification of Prostate Cancer Using the Combination of Histogram Analysis of Apparent Diffusion Coefficient Across Tumor Diffusion Volume and Clinical Information: A Pilot Study.
The effectiveness of quantitative MRI and clinical information in the risk stratification of prostate cancer (PCa) patients was evaluated separately in previous research; however, the differentiation power of combining quantitative MRI and clinical information has yet to be investigated. ⋯ 4 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2019;49:556-564.