Question about CT equipment, how does it work when taking pictures?

The basic principle of CT is like cutting fruit, can be cut very thin, can be very thick, which is related to the grade of the CT machine, each level is a two-dimensional plan, if the CT machine is more than 16 rows can do three-dimensional reconstruction, presenting a three-dimensional picture, about the CT slice of the image generally includes two parts: such as the head of CT is divided into the brain window and the bone window, the main part of the observation of the lesion by the Decide, brain window is mainly to see the brain tissue lesions, bone window is to see the skull with or without lesions,, the purpose is not the same, so the pictures presented are different, I hope to help you.