Anisotropic hydrogels has been attracting attention for biomedical purposes. These highly-hydrated materials have potential for tissue-mimicking and then, may serve for advanced medical imaging studies. In the work, we present two types of anisotropic hydrogels made from sodium alginate (NA) and polyvinyl alcohol (PVA) in the form of fiber bundle- a single component for larger phantom. We investigated their potential for diffusion-weighted imaging. NA-based phantoms are characterized by highly uniform diffusivity distribution, even higher then water. Single component turned out to be insufficient for the accurate quantification of the microstructure. PVA-based phantom exhibited desirable diffusion properties for tissue-mimicking.
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