This image looks directly down through the top of the patient’s head.
The complex network of arteries and veins in the brain can be seen in shades of dark blue and the skull base is shown in green in the background.
Radiologist Kai-hung Fung makes beautiful and informative art from the CT (computed tomography) scans of his patients, digitally manipulating them to look more appealing. His image of the inside of our sinuses won the 2007 International Science and Engineering Visualization Challenge. See this and some of his more recent works in NewScientist gallery.