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- Diffusion-weighted imaging (DWI) is a form of MR imaging based upon measuring the random Brownian motion of water molecules within a voxel of tissue. In general simplified terms, highly cellular tissues or those with cellular swelling exhibit lower diffusion coefficients.
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Mar 20, 2023 · Diffusion-weighted imaging (DWI) is a form of MR imaging based upon measuring the random Brownian motion of water molecules within a voxel of tissue. In general simplified terms, highly cellular tissues or those with cellular swelling exhibit lower diffusion coefficients.
- Joshua Yap
Diffusion-weighted magnetic resonance imaging (DWI or DW-MRI) is the use of specific MRI sequences as well as software that generates images from the resulting data that uses the diffusion of water molecules to generate contrast in MR images.
Sep 9, 2016 · Abstract. Diffusion weighted imaging (DWI) is a method of signal contrast generation based on the differences in Brownian motion. DWI is a method to evaluate the molecular function and micro-architecture of the human body.
- Vinit Baliyan, Chandan J Das, Raju Sharma, Arun Kumar Gupta
- 10.4329/wjr.v8.i9.785
- 2016
- World J Radiol. 2016 Sep 28; 8(9): 785-798.
Diffusion-weighted imaging (DWI) provides structural and functional information that complements the excellent anatomical detail rendered by magnetic resonance imaging (MRI). There is common agreement that DWI is able to provide image contrast that is sensitive to microstructural and cellular remodeling.
Jun 8, 2020 · To date, diffusion weighted imaging (DWI) is included in routine magnetic resonance imaging (MRI) protocols for several cancers. The real additive role of DWI lies in the “functional” information obtained by probing the free diffusivity of water molecules into intra and inter-cellular spaces that in tumors mainly depend on cellularity.
For diffusion-weighted images, MR imaging is performed to measure the displacement of water molecules on various scales and provide a way to display this information as quantitative maps and images. Unlike other MR imaging methods, diffusion-weighted images can be used to assess the structure and condition of tissues on a micrometer scale.
