Journal of magnetic resonance imaging : JMRI
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J Magn Reson Imaging · Apr 2013
Arterial enhancing-only nodules less than 2 cm in diameter in patients with liver cirrhosis: predictors of hepatocellular carcinoma diagnosis on gadobenate dimeglumine-enhanced MR imaging.
To assess whether gadobenate dimeglumine (Gd-BOPTA)-enhanced MR imaging could predict hepatocellular carcinoma (HCC) diagnosis in small arterial enhancing-only nodules detected by contrast-enhanced computed tomography (CT) in patients with liver cirrhosis. ⋯ Gd-BOPTA-enhanced MR imaging provides imaging findings which may predict a diagnosis of HCC in small arterial enhancing-only nodules in cirrhotic patients.
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In this 2012 ISMRM Lauterbur Lecture, my goal is to challenge the members of the ISMRM to think critically about how we approach our research. From the perspective of a leader of an academic health sciences center, which is also a health care delivery system, I address three specific questions: Are we developing great technologies? Are we advancing scientific knowledge? Are we advancing human health? Specifically, with respect to increasing pressure in health care to improve patient outcomes and lower costs, I ask members to consider how we select the areas of research we focus on and whether we have sufficiently prioritized research that assesses the impact of our MR methods on patient outcomes. For imaging research to meet higher standards of evidence-based medicine, multicenter consortia should be developed, potentially under the auspices of the ISMRM, and priority should be given to developing investigators with expertise in health services research.
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J Magn Reson Imaging · Mar 2013
Iterative decomposition of water and fat with echo asymmetry and least-squares estimation (IDEAL) of the wrist and finger at 3T: comparison with chemical shift selective fat suppression images.
To compare fat-suppressed magnetic resonance imaging (MRI) quality using iterative decomposition of water and fat with echo asymmetry and least-squares estimation (IDEAL) with that using chemical shift selective fat-suppressed T1-weighted spin-echo (CHESS) images for evaluating rheumatoid arthritis (RA) lesions of the hand and finger at 3T. ⋯ IDEAL could compensate for the effects of field inhomogeneities, providing uniform FS of the hand and finger than did the CHESS-T1-SE sequence.
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J Magn Reson Imaging · Mar 2013
Regional values of diffusional kurtosis estimates in the healthy brain.
To provide estimates of the diffusional kurtosis in the healthy brain in anatomically defined areas and list these along previously reported values in pathologies. ⋯ DKI parameter estimates MK and RK varied depending on the anatomical region and varied with age in pooled WM and GM data. MK estimates in the internal capsule, corpus callosum, and thalamus were consistent with previous studies. The range of values of MK and RK in healthy brain overlapped with that in pathologies.
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J Magn Reson Imaging · Feb 2013
Artifact reduction from metallic dental materials in T1-weighted spin-echo imaging at 3.0 tesla.
To investigate and propose a method of artifact reduction arising from metallic dental materials by applying a slice-encoding for metal artifact correction (SEMAC) technique on T1-weighted spin-echo (SE) imaging at 3 Tesla. ⋯ The SEMAC technique can mitigate artifact caused by metallic dental materials for T1w-SE imaging.