Journal of magnetic resonance imaging : JMRI
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J Magn Reson Imaging · Oct 2017
Vessel wall and adventitial DCE-MRI parameters demonstrate similar correlations with carotid plaque microvasculature on histology.
To assess parameter agreement of volume transfer coefficient (Ktrans ) between two vascular regions and to study the correlation with microvessel density on histology. The dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) parameter Ktrans is frequently used to study atherosclerotic plaque microvasculature. Ktrans has been reported using different descriptive statistics (mean, median, 75th percentile) either for the whole vessel wall or the adventitia in previous studies. ⋯ 2 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2017;46:1053-1059.
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J Magn Reson Imaging · Oct 2017
Diffusion tensor imaging of the human calf: Variation of inter- and intramuscle-specific diffusion parameters.
To investigate to what extent inter- and intramuscular variations of diffusion parameters of human calf muscles can be explained by age, gender, muscle location, and body mass index (BMI) in a specific age group (20-35 years). ⋯ 3 Technical Efficacy: Stage 1 J. Magn. Reson. Imaging 2017;46:1137-1148.
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J Magn Reson Imaging · Sep 2017
ADCtotal ratio and D ratio derived from intravoxel incoherent motion early after TACE are independent predictors for survival in hepatocellular carcinoma.
To explore the threshold of intravoxel incoherent motion (IVIM) parameters, apparent diffusion coefficient [ADCtotal and ADC(0,500) ] ratios 24-48 hours after transarterial chemoembolization (TACE) to assess early response in patients with unresectable hepatocellular carcinoma (HCC) and to compare the association between diffusion-weighted imaging with the intravoxel incoherent motion (IVIM-DWI) and mRECIST with survival. ⋯ 1 Technical Efficacy: Stage 2 J. MAGN. RESON. IMAGING 2017;46:820-830.
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J Magn Reson Imaging · Sep 2017
DCE-MRI of the prostate using shutter-speed vs. Tofts model for tumor characterization and assessment of aggressiveness.
To quantify Tofts model (TM) and shutter-speed model (SSM) perfusion parameters in prostate cancer (PCa) and noncancerous peripheral zone (PZ) and to compare the diagnostic performance of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) to Prostate Imaging and Reporting and Data System (PI-RADS) classification for the assessment of PCa aggressiveness. ⋯ 3 Technical Efficacy: Stage 2 J. MAGN. RESON. IMAGING 2017;46:837-849.
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J Magn Reson Imaging · Sep 2017
Whole-brain vessel wall MRI: A parameter tune-up solution to improve the scan efficiency of three-dimensional variable flip-angle turbo spin-echo.
To propose and evaluate a parameter tune-up solution to expedite a three-dimensional (3D) variable-flip-angle turbo spin-echo (TSE) sequence for whole-brain intracranial vessel wall (IVW) imaging. ⋯ 2. Technical Efficacy: Stage 1 J. MAGN. RESON. IMAGING 2017;46:751-757.