Table 1 Minimal and standard Computed Tomography Technical parameters for inclusion
Number of detector rows* | 16 or more up to 128 |
|---|---|
Minimum Scan coverage* | Skull base to femur |
Tube voltage(kV)/time-current product (mAs) | 120/50–70, adjusted as clinically needed |
Reconstruction convolution kernel | Sharp, high-frequency (bone) and smooth (soft tissue). Middle-frequency kernel for all images are adjusted by the radiologist as deemed necessary |
Iterative reconstruction algorithms | Yes (to reduce image noise and streak artefacts) |
Thickness | ≤5 mm |
Multiplanar Reconstructions (MPRs) | Yes (sagittal, coronal and parallel to long axis of proximal limbs) |
Matrix, Rotation time, table speed, pith index | 128 × 128, 0.5 s,24 mm per gantry rotation, 0.8 |