Journal of magnetic resonance imaging : JMRI
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J Magn Reson Imaging · Dec 2009
Guideline to use gadolinium-based contrast agents at Kyoto University Hospital.
Guideline to use gadolinium-based contrast agents (GBCAs) to prevent nephrogenic systemic fibrosis (NSF) at Kyoto University Hospital is presented. This guideline is basically the same as the one issued by the joint committee of the Japan Radiological Society and Japanese Society of Nephrology. In the guideline of the joint committee of Japan Radiological Society and Japanese Society of Nephrology, it is described that GBCAs should be used only when they are indispensable for adequate diagnosis regardless of renal function. ⋯ Magn. Reson. Imaging 2009;30:1364-1365. (c)2009 Wiley-Liss, Inc.
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Nephrogenic systemic fibrosis (NSF) has been associated with the administration of gadolinium-based contrast agents in patients with severely impaired renal function (SIRF), endstage renal disease (ESRD), or acute renal failure (ARF). Since the vast majority of these patients do not get NSF, it is highly likely that patient factors play a role in its development. Although "free" or dechelated gadolinium is thought by some to be the only trigger of NSF, recent evidence suggests that chelated gadolinium may be important. ⋯ Magn. Reson. Imaging 2009;30:1277-1283. (c) 2009 Wiley-Liss, Inc.
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J Magn Reson Imaging · Nov 2009
Volume-targeted and whole-heart coronary magnetic resonance angiography using an intravascular contrast agent.
To compare volume-targeted and whole-heart coronary magnetic resonance angiography (MRA) after the administration of an intravascular contrast agent. ⋯ Both WH-CMRA and t-CMRA using SSFP are useful techniques for coronary MRA after the injection of an intravascular blood-pool agent. However, the vessel conspicuity for high spatial resolution WH-CMRA is not inferior to t-CMRA, while visible vessel length and the number of visible smaller-diameter vessels and side-branches are improved.
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J Magn Reson Imaging · Nov 2009
Comparative StudyComparison of methods to assess quadriceps muscle volume using magnetic resonance imaging.
To compare the precision of four methods to estimate the volume of quadriceps muscles using axial MRI. ⋯ While methods based on interpolation and deformation of a parametric specific object have not been used in literature, these two methods are the most precise approaches to reach a given level of precision.