AMPR, Feldkamp, n-p etc
GE use MDMP algorithm, based upon ASSR
- Non uniform data weighting gives more weight to central detectors
- Multiple images reconstructed and filtered in z-axis
AMPR is Siemens’ reconstruction algorithm, based upon ASSR but using multiple partial image reconstructions
- Partial images use ¾ or 1½ rotations
- Better use of scan data
- Can be used at range of pitches
Toshiba use Coneview - Feldkamp based technique
- 3D based reconstruction
- Approximate reconstructions
Philips use ‘Cobra’ cone beam reconstruction
- Uses Feldkamp based ‘n-p’ reconstruction