|
Fig 1. Graphs illustrate schematic representations of the modulation of tube current (A) and, hence, tube current-time product (mA · s) (B) with body region along z-axis in automatic exposure control (AEC) technique (continuous lines in A and B). Tube current and tube current-time products in fixed current technique is shown for comparison as dotted lines in A and B, respectively. Radiation dose (mA · s) with AEC is less than that with fixed current in all section positions along z-axis.
|