Journal of magnetic resonance imaging : JMRI
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J Magn Reson Imaging · Jan 2018
T2 -Mapping evaluation of early cartilage alteration of talus for chronic lateral ankle instability with isolated anterior talofibular ligament tear or combined with calcaneofibular ligament tear.
To quantitatively evaluate the cartilage alteration of talus for chronic lateral ankle instability (LAI) with isolated anterior talofibular ligament (ATFL) tear and combined ATFL and calcaneofibular ligament (CFL) tear using T2 -mapping at 3.0T. ⋯ 1 Technical Efficacy: Stage 3 J. Magn. Reson. Imaging 2018;47:69-77.
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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 · 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 · Nov 2017
Radiomics assessment of bladder cancer grade using texture features from diffusion-weighted imaging.
To 1) describe textural features from diffusion-weighted images (DWI) and apparent diffusion coefficient (ADC) maps that can distinguish low-grade bladder cancer from high-grade, and 2) propose a radiomics-based strategy for cancer grading using texture features. ⋯ 3 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2017;46:1281-1288.
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J Magn Reson Imaging · Nov 2017
Comparative StudyBicomponent ultrashort echo time T2* analysis for assessment of patients with patellar tendinopathy.
To compare bicomponent ultrashort echo time (UTE) T2* parameters of patellar tendon between healthy volunteers and patients with patellar tendinopathy. ⋯ 1 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2017;46:1441-1447.