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Radiotherapy Simulation Systems, Computed Tomography-Based

Definition : Radiotherapy simulation systems that use a computed tomography (CT) scanner with specialized hardware and software for radiotherapy simulation and treatment-field delineation. These systems can delineate the tumor in CT slices, determine the target volume using a treatment-planning computer, select the treatment field, and mark the patient for radiation treatment in a single session. CT-based systems are also used for verification of tumor margins, tracking of tumor regression, and three-dimensional image analysis for multileaf collimators and conformal radiotherapy.

Entry Terms : "Computed Tomography-Based Radiotherapy Simulation Systems"

UMDC code : 20548

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