Additional head images from the Visible Human Project, courtesy of the U.S. National Library of Medicine. For these images, the donor was preserved in formalin and the blood vessels were filled with araldite-F. After freezing the specimen was cryo sectioned at 0.147mm intervals and digital photographs were taken with a resolution of 1056 x 1528 pixels.

This case has been downsampled by a factor of 2 from the originals for decreased file sizes and to have the ability for 3D processing.

Automatic brain cortical and subcortical segmentations are performed using the Freesurfer software, in particular the SynthSeg program (for details see SynthSeg: Segmentation of brain MRI scans of any contrast and resolution without retraining. B Billot, DN Greve, O Puonti, A Thielscher, K Van Leemput, B Fischl, AV Dalca, JE Iglesias. Medical Image Analysis, 83, 102789 (2023)). The cortical segmentations were subsequently expanded for improved visibility.

You can use the keyboard shortcut "a" to toggle the visibility of the segmentations.