AMPR, Feldkamp 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-’ reconstruction