diffusion-weighted imaging


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diffusion-weighted imaging

Imaging A type of MRI that provides metabolic and hemodynamic information of the brain shortly after a stroke. See Magnetic resonance imaging. Cf Perfusion-weighted imaging.
References in periodicals archive ?
Diffusion-weighted imaging in patients with progressive multifocal leukoencephalopathy.
Key Words: hemiplegic migraine, general anaesthesia, magnetic resonance imaging, magnetic resonance angiography, diffusion-weighted imaging
Diffusion-weighted imaging is extremely helpful in distinguishing an epidermoid from arachnoid cysts due to the characteristic restricted diffusion within an epidermoid.
Evaluation of possible prognostic factors of fulminant acute disseminated encephalomyelitis (ADEM) on magnetic resonance imaging with fluid-attenuated inversion recovery (FLAIR) and diffusion-weighted imaging.
With diffusion-weighted imaging we can often see changes before they are visible with contrast-enhanced MRI.
Heroin-induced leukoencephalopathy: characterization using MRI, diffusion-weighted imaging, and MR spectroscopy.
Brain and spinal cord MRIs should include conventional MRI sequences (T1-and T2-weighted imaging and fluid-attenuated inversion recovery sequence imaging) as well as diffusion-weighted imaging and gadolinium-enhanced T1 sequences.
The addition of diffusion-weighted imaging in this clinical context has been shown further to improve the specificity and positive predictive value to 92.
Diffusion-weighted imaging (DWI), which is well established in the stroke world, is understudied in TBI, probably because it's a challenge to perform magnetic resonance imaging on these acutely ill patients.
Diffusion-weighted imaging (DWI) relies on the random movement of particles in solution to identify areas of tissue in which this random movement has been sharply reduced by a disease process.
In addition to providing tools for the standard anatomical measurements used for tumor assessment in cancer management and research, Cedara I-Response can analyze both PET/CT and MR-based diffusion-weighted imaging (DWI).
Endpoints will include infarct growth measured by echo-planar imaging capability for performance of MRI; gradient recalled echo (GRE), diffusion-weighted imaging (DWI) / apparent diffusion coefficient (ADC), perfusion-weighted imaging (PWI), fluid-attenuated inversion-recovery (FLAIR), and intracranial MRA.