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Diffusion MRI

Diffusion MRI, or D-MRI (sometimes termed Diffusion-weighted magnetic resonance imaging) is a medical imaging technique specifically concerned with using the diffusion of water molecules throughout both the blood and bodily tissues to build up a contrast map of a living, organic body.

This creates a microscopic-level detail map about systems in the body, particularly as the patterns of water diffusion are recognisable for what they are: Namely which tissue structure from the gaps in diffusion, exists in a given location.

As such, diffusion MRI is an excellent tool for mapping neurological structures in particular, making it that much easier to see how the structures are laid out, and making connecting with a particular structure via implant or interface much more feasible than without.

As such, its primary usage in relation to virtual and augmented reality is to map out precisely the locations of given neurological structures, in order to identify the optimal location for a brain implant in a later surgery. This is a process known as tractography, and one which has benefits across all of neuroscience.

Additionally, as a MRI variant, D-MRI is also used more directly as a virtual reality data input, as the results from the scan can be compiled by many medical data imaging systems into a medical mirror world, a virtual environment precisely replicating the inside of a region of a patient's body via mappingthe water diffusuion, allowing medical professionals to interact with the datsa in three dimensions, isolating the best route for a future surgery.

D-MRI scans are natively in the DICOM or PACS medical imaging data formats. Which one was used depending entirely on the country the scanner was located in, as such the scan format is standardised for use as input in medical VR in this manner.

See Also: Brain-Computer Interface, Deep Brain Stimulator, Neuroprosthetic, Mirror World, Tractography

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Diffusion MRI


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Locally Hosted resource
Brain Reading: Diffusion Spectrum Imaging
Diffusion spectrum imaging is a new technique at time of writing, which allows magnetic resonance brain imaging, at a much higher level of fidelity than fMRI permits.

Linked resource
The Brain Unveiled
Technology Review's long, and in depth look at the rise of diffusion spectrum imaging, and how this new neural interface imaging technique is rapidly accelerating the study of both human and animal brains to an extent unparalleled by any previous imaging technique, even fMRI.


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A new imaging method that offers an unprece?dented view of ?complex neural structures could help explain the workings of the brain and shed light on neurological diseases. Diffusion spectrum imaging, developed by neuroscientist Van Wedeen a...

A team of international researchers is the first to uncover the chemical composition and structure of a microelectronics element that is vital to producing ever smaller - and, thus, cheaper and faster - devices.

"The number ...

November 18th 2012 - November 20th 2012
San Diego, California, USA

The Division of Fluid Dynamics of the American Physical Society exists for the advancement and diffusion of knowledge of the physics of fluids with spe...

NEC Corporation, in collaboration with the National Institute of Materials Science, today announced the successful integration of NanoBridge, a solid electrolyte non-volatile crossbar switch, in Cu interconnects placed on CMOS logic. This d...

Researchers at Thomas Jefferson University Hospital, in Philadelphia, have developed software that integrates data from multiple imaging technologies to create an interactive 3-D map of the brain.

In doing so, it could serve ...