Radiotherapy CT scanner Laser positioning lights ImPACT Course 07/02- CT in Radiotherapy
Treatment planning Using Treatment Planning software beam sizes, beam directions and required shielding are selected to achieve desired distribution 15x13 18x .Tumeu' 11x13 Irradiated ve me ImPACT Course 07/02- CT in Radiotherapy
CT scanners in R/T planning Couch position accuracy Z-axis Sagittal MPR showing longitu dinal extent of tumour ImPACT Course 07/02- CT in Radiotherapy
Specialist Uses Large Bore for radiotherapy treatment planning CT scanners combined with 器 PET 身 UKRC: 22d May 2001
Completeness Conditions for Cone Beam ct Completeness Condition If on every plane that intersects the object there exists at least one cone-beam source point, then one can reconstruct the object. (B D. Smith1985) The possible structures satisfying the conditions are
Completeness Conditions for ConeBeam CT ➢ Completeness Condition ： If on every plane that intersects the object there exists at least one cone-beam source point,then one can reconstruct the object. (B.D.Smith1985) ➢ The possible structures satisfying the conditions are: