6) The way an image is viewed on the computer can be adjusted by changing the window width and window level. The window width determines the number of HU units represented on a specific image. The window level selects the center CT value of the window width. For example, if the window widt image will range between -150 and 150. All other HU values will be displayed as black or white Consider a window level of 850 and a window width of 2180. Which HU numbers will appear black? Which will appear white? h is 300 and the level is 0, the HU values that are represented as shades of gray on the