Table 3 Factors affecting radiation dose in CT [34]
Equipment-related factors | Application-related factors |
|---|---|
Beam filtration Beam shaper Beam collimation Detector array Data acquisition system Spiral interpolation Adaptive filtration Overranging Automatic exposure control (AEC) system Reconstruction method | Scan parameters • Tube current-time (mAs) • Tube potential (kVp) • Slice collimation and slice thickness • Pitch • Object diameter of patient weight Examination parameters • Scan length • Number of scan series • Number of rotations in dynamic CT studies |