Journal of magnetic resonance imaging : JMRI
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J Magn Reson Imaging · Nov 2008
Role of spectral presaturation attenuated inversion-recovery fat-suppressed T2-weighted MR imaging in active inflammatory bowel disease.
To retrospectively evaluate the efficacy of spectral presaturation attenuated inversion-recovery (SPAIR) fat-suppressed (FS) partial Fourier single shot (SSH) T2-weighted (T2W) and gadolinium-enhanced (Gd) FS 3D-gradient echo (3DGRE) T1-weighted (T1W) delayed phase MRI to differentiate active bowel inflammation from fibrotic disease in patients with Crohn's disease (CD). ⋯ SPAIR-SSH detects actively diseased CD bowel segments with a high level of specificity. Noninflammatory bowel fibrosis corresponds to abnormal uptake on delayed phase Gd-3DGRE images but without associated elevated abnormal signal on SPAIR-SSH.
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J Magn Reson Imaging · Nov 2008
Apparent diffusion coefficient: prostate cancer versus noncancerous tissue according to anatomical region.
To evaluate diagnostic performance of apparent diffusion coefficient (ADC) in differentiating prostate cancer from noncancerous tissue according to anatomical region. ⋯ Variable ADC in noncancerous tissue according to anatomical region may limit diagnostic performance of ADC for cancer detection.
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J Magn Reson Imaging · Nov 2008
Improved delayed enhanced myocardial imaging with T2-Prep inversion recovery magnetization preparation.
To develop a magnetization preparation method that improves the differentiation of enhancing subendocardial infarction (MI) from ventricular blood for myocardial delayed-enhancement (DE) magnetic resonance imaging (MRI). ⋯ Our preliminary patient studies confirm that this preparation is helpful for improved delineation of subendocardial infarction.
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J Magn Reson Imaging · Nov 2008
Effective motion-sensitizing magnetization preparation for black blood magnetic resonance imaging of the heart.
To investigate the effectiveness of flow signal suppression of a motion-sensitizing magnetization preparation (MSPREP) sequence and to optimize a 2D MSPREP steady-state free precession (SSFP) sequence for black blood imaging of the heart. ⋯ Velocity encoding is the primary flow suppression mechanism of the MSPREP sequence and 2D MSPREP-SSFP black blood imaging of the heart is feasible in healthy subjects.
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J Magn Reson Imaging · Nov 2008
Measurement of liver stiffness with two imaging techniques: magnetic resonance elastography and ultrasound elastometry.
To cross-validate the magnetic resonance elastography (MRE) technique with a clinical device, based on an ultrasound elastometry system called Fibroscan. ⋯ This study shows why MRE should be investigated beyond the Fibroscan. The MRE technique provided elasticity of the entire liver, meanwhile the Fibroscan provided values of elasticity locally.