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HDI

HDI HDI, or heterogeneity diffusion imaging, is a diffusion MRI method that uses one clinical scan to identify and describe differences within a tumor, including its tissue makeup and small-vessel characteristics.

HDI, or heterogeneity diffusion imaging, is a diffusion MRI method that uses one clinical scan to identify and describe differences within a tumor, including its tissue makeup and small-vessel characteristics. It is mainly used in evaluating primary brain tumors.

Also see

Sources

Drafting source: NCI Thesaurus. Flat export snapshot 2026-10-18. “Heterogeneity Diffusion Imaging” (C179716).
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PsychTerms (psychterms.org), CC BY 4.0, version 1. “HDI.” Development preview.

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