Simulator-CT

 A CT mode attached to the simulator gantry can be used to produce images with a relatively limited resolution during the simulation process. This provides both external contouring and some normal anatomical data, such as lung and chest wall thickness, for simple inhomogeneity corrections. Images do not give detailed tumour information or accurate CT numbers. These scans are time consuming to obtain, and are therefore usually limited to the central, superior and inferior levels of the target volume.

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