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Comparison of image quality and dose
Start with typical clinical protocol
Standardise scan parameters where possible
- eg collimation, kV, pitch, nominal image width
Correct for known parameter inter-dependencies
- eg. noise and dose, image width
Obtain trend data for other inter-dependencies
Review performance data
- Normalise values to give single value of dose or noise
- Display normalised noise against resolution
- Calculate a single quality performance parameter