High-Angular Resolution Diffusion Imaging - An MRI technique. This particular form of MRI imaging has the ability to discern the orientation of the micro-structure of the tissue it is imaging.

From a practical standpoint, this means you are able to clearly see the orientation-directions of fibers, such as axons, within the tissue you are imaging.

HARDI is not DTI
         High Angular Resolution Diffusion Imaging versus Diffusion Tensor Imaging



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Sources and Resources

• HARDI Publications