Results 251 to 260 of about 310,808 (292)
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Whole-body diffusion-weighted magnetic resonance imaging
European Journal of Radiology, 2009Diffusion-weighted magnetic resonance imaging (DWI) provides information on the diffusivity of water molecules in the human body. Technological advances and the development of the concept of diffusion-weighted whole-body imaging with background body signal suppression (DWIBS) have opened the path for routine clinical whole-body DWI.
Thomas C, Kwee +7 more
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Diffusion of magnetic resonance imaging in Iran
International Journal of Technology Assessment in Health Care, 2007Objectives:The aim of this article is to describe the diffusion of magnetic resonance imaging (MRI) in Iran, including regional variations during the period of 1990 to 2005 and international comparisons.Methods:Data on the diffusion of MRI were obtained from the Medical Equipment Office of the Ministry of Health (MOH) and, using self-administered ...
Mohammad, Palesh +4 more
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Diffusion tensor magnetic resonance imaging
2004Abstract A large body of evidence from in vivo imaging and post-mortem studies suggests that the brains of patients with schizophrenia are both structurally and functionally compromised. The most replicated gross morphometric findings from magnetic resonance (MR) imaging studies are enlarged lateral ventricles and reduced cerebral volume,
Mark E Bastin, Stephen M Lawrie
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Diffusion Magnetic Resonance Imaging of the Breast
Magnetic Resonance Imaging Clinics of North America, 2011Several studies have investigated the role of advanced magnetic resonance imaging (MRI) techniques, such as diffusion-weighted imaging (DWI), to improve the specificity of MRI for the evaluation of breast lesions. Potential roles for DWI and the apparent diffusion coefficient in characterizing breast tumors and distinguishing malignant from benign ...
Fernanda Philadelpho Arantes, Pereira +2 more
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Magnetic resonance imaging of diffusion and perfusion
Topics in Magnetic Resonance Imaging, 1991Two promising advances in MRI have recently evolved. Water proton directional "diffusion" as well as "perfusion" processes can be imaged in a rapid (on the order of milliseconds) and accurate manner. MR diffusion imaging is shown to effectively allow determination of the presence of anisotropic water diffusion in animal and human cerebral and spinal ...
M E, Moseley +2 more
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Diffusion Tensor Magnetic Resonance Imaging of Brain Tumors
Magnetic Resonance Imaging Clinics of North America, 2005DTI seems to offer the possibility of adding important information to presurgical planning. Although experience is limited, DTI seems to provide useful local information about the structures near the tumor, and this seems to be useful in planning. In the future, DTI may provide an improved way to monitor intraoperative surgical procedures as well as ...
L Celso Hygino, Cruz Júnior +1 more
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[Diffusion spectrum magnetic resonance imaging].
Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences, 2011Diffusion spectrum imaging (DSI), a newly developed MRI technique, affords the capacity to map complex fiber architectures in tissues with sufficient angular resolution by imaging the spectra of tissue water diffusion. By contrast, diffusion tensor imaging (DTI), the currently widely used technique based on the 2nd order tensor model, obtains an ...
Lin, Tian, Hao, Yan, Dai, Zhang
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Perfusion/Diffusion Quantitation with Magnetic Resonance Imaging
Investigative Radiology, 1992Quantitation of perfusion and diffusion in tissues using magnetic resonance imaging (MRI) techniques is an active area of research in many laboratories. Several different approaches have been taken to address the problem of determining microcirculatory flow or perfusion in the body with MRI.
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Magnetic Resonance Imaging of Diffuse Liver Diseases
Topics in Magnetic Resonance Imaging, 2002The 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 ...
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Diffusion tensor magnetic resonance imaging
2018Abstract The microstructure of the heart has a major impact on its mechanical and electrical properties. Diffusion tensor magnetic resonance imaging (DTI) exploits the anisotropic restriction of water diffusion in the myocardium to resolve its microstructure.
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