Results 301 to 310 of about 660,753 (347)

Diffusion Magnetic Resonance Imaging in the Head and Neck

Magnetic Resonance Imaging Clinics of North America, 2011
Diffusion weighting (DW) represents a magnetic resonance imaging contrast distinct from T1 and T2 in terms of imaging physics and its relationship to underlying physiology and pathophysiology. DW imaging has become a sine qua non of neuroimaging because of its exquisite sensitivity to the molecular motion of water that is altered in many pathologic ...
Ashok Srinivasan, James A. Schafer, Suresh K. Mukherji   +2 more
openaire   +3 more sources

Pelvic Applications of Diffusion Magnetic Resonance Images

Magnetic Resonance Imaging Clinics of North America, 2011
Diffusion-weighted imaging (DWI) is a powerful imaging technique in neuroimaging; its value in abdominal and pelvic imaging has only recently been appreciated as a result of improvements in magnetic resonance imaging technology. There is growing interest in the use of DWI for evaluating pathology in the pelvis. Its ability to noninvasively characterize
Alexander R. Guimaraes, Alexander R. Guimaraes, Leonardo Kayat Bittencourt, Cintia E. Pires, Arun Krishnaraj, Antonio C. Coutinho   +5 more
openaire   +2 more sources

Coaxially electrospun axon-mimicking fibers for diffusion magnetic resonance imaging.

ACS Applied Materials and Interfaces, 2012
The study of brain structure and connectivity using diffusion magnetic resonance imaging (dMRI) has recently gained substantial interest. However, the use of dMRI still faces major challenges because of the lack of standard materials for validation.
F. Zhou, P. Hubbard, S. Eichhorn, G. Parker   +3 more
semanticscholar   +1 more source

Magnetic resonance imaging studies of diffusion in polymers

Food Additives and Contaminants, 1997
For a number of polymer/penetrant systems, for example fatty foods in direct contact with plastic wrapping, the migration of substances from the polymer is governed by the amount of penetrant entering the polymer. For food packaging this means that the rate of migration of substances into the food can be governed by the uptake of food into the ...
Peter J. Fryer, S. R. Pugh, Lynn F. Gladden, M. L. Johns, S. G. Harding   +4 more
openaire   +3 more sources

Diffusion tensor magnetic resonance image regularization

Medical Image Analysis, 2004
As multi-dimensional complex data become more common, new regularization schemes tailored to those data are needed. In this paper we present a scheme for regularising diffusion tensor magnetic resonance (DT-MR) data, and more generally multi-dimensional data defined by a direction map and one or several magnitude maps.
Daniel C. Alexander, Simon R. Arridge, Olivier Coulon   +2 more
openaire   +3 more sources

Diffusion weighted magnetic resonance imaging in stroke

European Journal of Radiology, 2003
Diffusion weighted magnetic resonance imaging has evolved from an esoteric laboratory experiment to a critical aspect of routine clinical care of the patient presenting with symptoms suspicious of acute ischemic stroke. The purpose of this article is to review the basis of diffusion weighted imaging (DWI), to consider its application in acute stroke ...
Timothy P.L. Roberts, Howard A. Rowley
openaire   +3 more sources

Diffusion magnetic resonance imaging detects pathologically confirmed, nonenhancing tumor progression in a patient with recurrent glioblastoma receiving bevacizumab.

Journal of Clinical Oncology, 2010
A 24-year-old man with a recurrent glioblastoma was treated with bevacizumab and irinotecan every 2 weeks for 6 months. He initially experienced reduced contrast enhancement (partial response) until a new enhancing lesion appeared anterior and superior ...
E. Gerstner, M. Frosch, T. Batchelor
semanticscholar   +1 more source

Diffusion-Weighted Magnetic Resonance Imaging

1997
Contrast in magnetic resonance imaging (MRI) is generated by exploiting a variety of physicochemical properties. Conventional clinical MRI techniques are largely based upon disease-induced changes in water relaxation, but these have been complemented by a number of other approaches, including a sensitization to the diffusion of water. It has been shown
Robert Turner, A.L. Busza, Nick van Bruggen, Martin D. King   +3 more
openaire   +2 more sources

Breast Magnetic Resonance Imaging

Magnetic Resonance Imaging Clinics of North America, 2013
More imaging centers are incorporating diffusion-weighted imaging (DWI) into the clinical breast magnetic resonance (MR) examination, with the potential of increasing the specificity of breast MR imaging. This article reviews the role of DWI in the evaluation of breast lesions. The principles, technique, and protocol of DWI are discussed, including the
Savannah C. Partridge, Alice C. Brandão, Constance D. Lehman   +2 more
openaire   +3 more sources

Magnetic Resonance Imaging of Diffuse Liver Diseases

Topics in Magnetic Resonance Imaging, 2002
The intrinsic soft tissue contrast and exquisite sensitivity to contrast agents are unique attributes of magnetic resonance imaging that are beneficial when evaluating diffuse liver disease. Much like a pathologist uses different tissue or cell marker stains, the magnetic resonance imager can use a variety of imaging strategies to elucidate pathologic ...
openaire   +3 more sources