2017 Imaging for Physicists Coursebook

Dealing with scatter

Not corrected for scatter Corrected for beam hardning

• Avoidance

– Limit the field of view – Grids – Distance between patient and detector • Correction

Corrected for scatter and beam hardning

Correction of scatter in megavoltage cone-beam CT Spies et al. Phys. Med. Biol 2001