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Comparison of Magnetic Properties of MRI Contrast Media Solutions at Different Magnetic Field Strengths
- M. Rohrer, Hans Bauer, J. Mintorovitch, M. Requardt, H. Weinmann
- Chemistry, PhysicsInvestigative radiology
- 1 November 2005
Awareness of the field strength and solvent associated with relaxivity data is crucial for the comparison and evaluation of relaxivity values and should be replaced by relaxivities measured at 1.5 T and at 3 T in plasma at physiological temperature.
Early detection of regional cerebral ischemia in cats: Comparison of diffusion‐ and T2‐weighted MRI and spectroscopy
Diffusion‐weighted hyperintensity in ischemic tissues may be temperature‐related, due to rapid accumulation of diffusion‐restricted water in the intracellular space (cytotoxic edema) resulting from the breakdown of the transmembrane pump and/or to microscopic brain pulsations.
Diffusion-weighted MR imaging of anisotropic water diffusion in cat central nervous system.
The diffusion behavior of intracranial water in the cat brain and spine was examined with the use of diffusion-weighted magnetic resonance (MR) imaging, in which the direction of the…
Diffusion-weighted MR imaging of acute stroke: correlation with T2-weighted and magnetic susceptibility-enhanced MR imaging in cats.
Data indicate that diffusion-weighted MR images more accurately reflect early-onset pathophysiologic changes induced by acute cerebral ischemia than do T2- Weighted spin-echo images.
Comparison of diffusion‐ and T2‐weighted MRI for the early detection of cerebral ischemia and reperfusion in rats
- J. Mintorovitch, M. Moseley, L. Chileuitt, H. Shimizu, Y. Cohen, P. Weinstein
- MedicineMagnetic resonance in medicine
- 1 March 1991
Close anatomical correlation was found between the early and sustained increase in diffusion‐weighted MRI signal intensity and localization of infarcts seen on post‐mortem histopathology.
Cytotoxic brain edema: assessment with diffusion-weighted MR imaging.
The results indicate that the ADC may be a sensitive indicator of cytotoxic brain edema and thus may enable quantitative evaluation of such edema with diffusion-weighted MR imaging.
Early detection of ischemic injury: comparison of spectroscopy, diffusion-, T2-, and magnetic susceptibility-weighted MRI in cats.
Within one hour following MCA-occlusion in cats, heavily diffusion-weighted spin-echo MR images exhibited a well-defined hyperintensity in the gray matter and basal ganglia of the occluded side over…
Diffusion-Weighted Magnetic Resonance Imaging of Acute Focal Cerebral Ischemia: Comparison of Signal Intensity with Changes in Brain Water and Na+,K+ -ATPase Activity
- J. Mintorovitch, G. Yang, Hiroaki Shimizu, J. Kucharczyk, P. H. Chan, P. Weinstein
- Medicine, BiologyJournal of cerebral blood flow and metabolism…
- 1 March 1994
Findings are consistent with the hypothesis that the early onset of signal hyperintensity in diffusion-weighted MR images may reflect cellular edema associated with impaired membrane pump function and early in vivo detection of potentially reversible ischemic cerebral edema may have important research and clinical applications.
Diffusion/perfusion MR imaging of acute cerebral ischemia
- J. Kucharczyk, J. Mintorovitch, Haleh S. Asgari, M. Moseley
- Medicine, BiologyMagnetic resonance in medicine
- 1 June 1991
Data indicate that sequential diffusion/perfusion imaging may be diagnostically useful in differentiating permanently damaged from reversibly ischemic brain tissue.
Echo-planar perfusion-sensitive MR imaging of acute cerebral ischemia.
T2*-sensitive echo-planar magnetic resonance imaging was used with first-pass magnetic susceptibility contrast enhancement in a cat model of acute regional stroke to evaluate the relationship between…