2017 Imaging for Physicists Coursebook

Material Quantification

Protocols Considerations

• Post-processing:

– Do not change calibration parameters.

• Dedicated kernels.

• Pitch should be low (<1).

• Slow rotation time (0.5 s)

• If possible, narrow collimation should be employed (e.g. to minimize scatter), at the

expenses of examination time.

• Reconstructed slice thickness

eff

• Noise and false iodine overlay values.

• The main assumption fails in presence of:

– Noise

– Physical artifacts (beam hardening)

– Motion

– Contrast media flow