1. A method for adjusting a scanning region of a computed tomography (CT) scanner, the method comprising: determining at least one edge point of a set-point scanning region associated with the CT scanner via hand signals; measuring, via at least one distance sensor located relative to a reference point of a patient examination table, a distance from the at least one edge point to the reference point; determining, from the measured distance, a position of the at least one edge point relative to the patient examination table; and determining a corresponding edge of a CT scanning region of the CT scanner via the determined position of the at least one edge point.