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Water self-diffusion, a recently discovered source of contrast on MR images, has already shown promise for some clinical applications. Most studies have been of the brain, essentially for technical reasons. Diffusion is useful in distinguishing the different components of brain tumors (cystic regions, edema, necrosis) from the tumor core itself. Recent(More)
  • Z. QIAN, D. W. HUNTER, +19 authors AMPLATZ Izumo-JAPAN
  • 2007
WP-1 A NEW VASCULAR OCCLUSION DEVICE M.D.G.K. NAZARIAN, Z. QIAN, D.W. HUNTER, W.R. CASTAI~EDA-ZUI~IGA, K. AMPLATZ Minneapol is .U .S .A. The University of Minnesota Hospital and Clinic Day: Aua.30thh * Time: 15.00 ~ Hall: Auditorig WP-2 DOSE-DEPENDENT SMOOTH MUSCLE CELL PROLIFERATION INDUCED BY THERMAL INJURY WITH PULSED INFRARED LASERS P.D. DOUEK, M. SHU,(More)
The article reviews recent progress made in the field of diffusion and perfusion magnetic resonance (MR) imaging and presents possible applications in brain tumors. Diffusion, a new parameter, provides useful data to assess tissue structure and function. Perfusion MR imaging gives results that are somewhat similar to those obtained with classic non-MR(More)
Diffusion of water in brain white matter has been shown to be anisotropic: Water mobility is lower when measured perpendicular to the fiber direction rather than parallel to it. This feature was used to produce images of the myelin fiber orientation. Coronal and sagittal MR diffusion images were obtained in volunteers using an echo-planar imaging sequence(More)
Water diffusion is extremely anisotropic in brain white matter, depending on myelin fiber orientation. A suggested, but unproven cause of anisotropy is that, in the direction transverse to the myelin fibers, axonal water diffusion is prevented by the presence of the myelin sheath. We found, however, using an ultra-fast nuclear magnetic resonance imaging(More)
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