Sharing MRI data with colleagues can be a time-consuming exercise. The files are often large and data-sets need to be viewable in a flexible fashion. Rich features assist the communication of results, including:

• 3D viewing
• flexible slicing
• overlay of specific volumes

While there are many software packages for running on the desktop, there’s nothing better than being able to point to a simple HTML link and open the scan data in a prepared format. Therefore, I went digging for an open-source package or library to display MRI renders and slices.

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Publishing fMRI results usually involves the presentation of slice images that show regions of increased BOLD (Blood Oxygen Dependent Signal). However, fMRI data is inherently three dimensional and often it is difficult to visualise or appropriately present data in 2D formats.

Therefore, it can be useful to implement a method for displaying graphics in 3D form. Luckily, there are some good javascript libraries that interact with the HTML5 canvas attribute to present 3D objects.

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