diffusion weighted imaging


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Related to diffusion weighted imaging: Diffusion tensor imaging

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 ?
10) Diffusion weighted imaging is a helpful modality for distinguishing between these 2 conditions, (10) particularly when the clinical history is obscure, and in the acute or early subacute phase of an ischemic stroke.
Diffusion weighted imaging (DWI) lesion volume is one such alternative.
The advanced sequences available on the OPART include the ability to perform Diffusion Weighted Imaging (DWI) and Perfusion Weighted Imaging (PWI) for stroke detection and staging, which historically have only been available on high-field systems.
Recent studies have emphasized the role of dynamic MR imaging and diffusion weighted imaging in characterizing the benign and malignant process of the endometrium.
Cedara I-Response is a works-in-progress software solution that features an exclusive patented technology for molecular imaging known as MR diffusion weighted imaging (DWI).
Diffusion weighted imaging of lesions is believed to identify the area of nerve cell injury and death following stroke.

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