Journal of magnetic resonance imaging : JMRI
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J Magn Reson Imaging · Jul 2014
Comparative StudyAbdominal MRI at 3.0 T: LAVA-Flex compared with conventional fat suppression T1-weighted images.
To study liver imaging with volume acceleration-flexible (LAVA-Flex) for abdominal magnetic resonance imaging (MRI) at 3.0 T and compare the image quality of abdominal organs between LAVA-Flex and fast spoiled gradient-recalled (FSPGR) T1-weighted imaging. ⋯ The LAVA-Flex sequence offers superior and more homogenous fat suppression of the abdomen than does the FSPGR sequence. The fat-only phase can be a simple and effective method of assessing fatty liver.
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J Magn Reson Imaging · Jul 2014
Multicenter Study Comparative StudyWhole-body MRI, including diffusion-weighted imaging, for staging lymphoma: comparison with CT in a prospective multicenter study.
To compare whole-body magnetic resonance imaging (MRI), including diffusion-weighted imaging (DWI), to computed tomography (CT) for staging newly diagnosed lymphoma. ⋯ The results of this study suggest that whole-body MRI staging equals CT staging in the majority of patients with newly diagnosed lymphoma. No advantage of additional DWI was demonstrated. Whole-body MRI can be a good alternative to CT if radiation exposure should be avoided.
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J Magn Reson Imaging · Jul 2014
Reduction of motion artifacts in carotid MRI using free-induction decay navigators.
To develop a framework for prospective free-induction decay (FID)-based navigator gating for suppression of motion artifacts in carotid magnetic resonance imaging (MRI) and to assess its capability in vivo. ⋯ Artifacts caused by the employed motion tasks deteriorated image quality in the nongated scans. These artifacts were alleviated with the proposed FID-navigator.
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To evaluate a novel real-time phase-contrast magnetic resonance imaging (MRI) technique for the assessment of through-plane flow in the ascending aorta. ⋯ Real-time phase-contrast MRI of blood flow in the human aorta yields functional parameters for individual heartbeats. When averaged across heartbeats real-time flow velocities and stroke volumes are comparable to values obtained by conventional cine MRI.
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J Magn Reson Imaging · Jul 2014
Randomized Controlled TrialFully automated tool to identify the aorta and compute flow using phase-contrast MRI: validation and application in a large population based study.
To assess if fully automated localization of the aorta can be achieved using phase contrast (PC) MR images. ⋯ A robust fully automated tool to localize the aorta and provide flow volume measurements on phase contrast MRI was validated on a large population-based study.