[A field study to determine dosages in computed tomography].
122 CT scanners were studied in order to determine close values free in air on the axis of rotation during the most common types of examination. In addition, other exposure parameters were collected, which may be important in relation to dose to patients. The results showed a surprising variation in the dose values of CT examinations. It is concluded that it is not possible to estimate patient exposure reliably by using the information on exposure parameters supplied by the operator.
Humans↗