Systems, methods, and media for presenting medical imaging data in an interactive virtual reality environment

A system for presenting medical imaging data in an interactive virtual reality environment, comprising:

• a head mounted display (HMD) comprising:
• at least one display comprising a plurality of pixels;
• memory storing a three dimensional (3D) array of voxel values corresponding to a medical imaging scan of a subject, wherein the 3D array includes a plurality of internal voxels corresponding to interior anatomy of the subject and a plurality of external voxels corresponding to an exterior surface of the subject;
• and
• at least one hardware processor that is programmed to:
• determine a position of a first 3D object in a scene to be presented using the at least one display, wherein the first 3D object is a 3D representation of the subject based on the 3D array of voxel values;
• determine a position of a second 3D object comprising a surface in the scene to be rendered;
• determine, based on the position of the first object and the position of the second object, that the second 3D object overlaps at least a portion of the first 3D object;
• determine, for a subset of pixels of the plurality of pixels, that the second 3D object is positioned between the pixel and the first 3D object;
• set a value for each of the subset of pixels based on a value of an interior voxel at a position in the 3D array corresponding to the point at which the surface of the second 3D object and a ray cast from the pixel intersect;
• present, using the at least one display, an image of the scene, the subset of pixels depicting an interior portion of the subject's anatomy.