get a 1d image in the depths duration so this head is raster scan XY scan in its water tray to get a 3d image so this is the map rates around this point it penetrates three millimeters we can scale to a few more millimeters if we won't add expensive resolution everybody you can get tens of microns resolution so the resolution is getting better this is an image of our own skin in this area of the palm there you can see blood vessels without injecting any contrast agents if you want to get the same type of images use x-ray you have to inject