2010 Volume 66 Issue 1 Pages 33-41
In infant CT scans, it is important to minimize radiation exposure without lowering the quality of the diagnosis. Therefore, appropriate parameters for infant CT scan should be considered at each institute. In order to determine parameters for infant body CT, we measured the physical characteristics of our current CT machine and evaluated scan parameters as S.D. below 10 on the basis of literature recommendations, which say that we should adopt S.D. of the liver when treated with a radiation exposure dose in an adult abdominal CT scan. As a result, the ideal parameters were 90 kV tube voltage, ultra fast detail resolution, B kernel, and Eff.mAs value calculated from patient body width. Infant body CT scans with the mentioned parameters resulted in an S.D. below 10, and this is thought to be applicable to further examinations.
