diffusion weighted imaging

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diffusion weighted imaging

MRIs with intensity proportional to the diffusion constant of water; because of the impaired movement of water in myelin, the signal is strongest parallel to nerve tracts; used primarily to evaluate edema in acute stroke, but also shows demyelinating diseases, and has been used in mapping muscle fiber direction in the heart.
Synonym(s): diffusion imaging

diffusion weighted imaging

In magnetic resonance imaging, the use of changes in the movement of water through tissues as a contrast medium. Diffusion weighted imaging has been used in the diagnosis of strokes and other neurological diseases as well as abdominal and musculoskeletal injuries and diseases.
See also: imaging
References in periodicals archive ?
Perfusion and diffusion imaging are recent advances that can help predict tumor type and grade, as well as predict patient survival and optimal therapeutic options.
Their topics include the anatomy of diffusion measurement, principles of diffusion tensor imaging, the mathematics, practical aspects, new image contrasts, high angular resolution diffusion imaging, three-dimensional tract reconstruction, and quantitative approaches.
0, with FOCUS, takes Diffusion Imaging to the next level with the ability to optimize for image quality and signal to noise.
These specific sequences show hyposignal on T2 imaging (2A), restriction of diffusion imaging (2B) and rapid and homogenous contrast enhancing with rapid washout (2C).
Thompson and his colleagues will use diffusion imaging, a new type of brain scan that maps the communication pathways between cells in the living brain.
Since then, Just and his team have used more advanced imaging technologies, particularly diffusion imaging of white matter and sophisticated computer models to uncover that the white matter is also altered in autism.
Topics included functional cardiac imaging, flow and motion imaging, functional neuro (BOLD) imaging and diffusion imaging.
Wishart is using advanced magnetic resonance imaging techniques--including high-resolution scans and diffusion imaging (which measures the flow of water particles) to map details of nerve tissue damage.
Multivariate analysis of structural and diffusion imaging in traumatic brain injury.
First, study volunteers were scanned by Diffusion Imaging MRI.
A sampling of topics: applications of diffusion imaging to the human memory system, cerebral neuroimaging and neurophysiological brain mapping of the effects of cannabis abuse, advances in neurosurgical applications of functional magnetic resonance imaging, and optical imaging of brainstem autonomic circuits using voltage-sensitive dyes.
PET/CT is more sensitive than ictal single-photon emission computed tomography (SPECT) imaging, MRI diffusion imaging (MRI-DI), and electroencephalography, and can play a pivotal role in the preoperative imaging work-up of patients with temporal lobe epilepsy, Dr.

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