# OnCo record radiotherapy-planning-ct-simulation (protocol). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)". Whole corpus: https://onco.cc/api/v1/onco.nt
@prefix schema: <https://schema.org/> .
@prefix onco: <https://onco.cc/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://onco.cc/protocols/radiotherapy-planning-ct-simulation/>
  a schema:MedicalGuideline ;
  onco:kind "protocol" ;
  schema:identifier "radiotherapy-planning-ct-simulation" ;
  schema:name "Radiotherapy planning scan (CT simulation): positioning, skin marks and what the patient does"@en ;
  schema:alternateName "CT simulation"@en, "CT sim"@en, "planning CT"@en, "radiotherapy planning appointment"@en, "simulation"@en, "virtual simulation"@en, "radiotherapy tattoos"@en, "reference marks"@en, "mould room"@en ;
  schema:description "Before radiotherapy starts you have a planning appointment, usually a CT scan. You lie in the exact treatment position, sometimes with a mask, mould or cushion, and keep very still. Small skin marks (permanent dots or temporary ink) may be made to line you up each day. Depending on the area, you may need a full or empty bladder, a dye injection, or breath-hold practice."@en ;
  schema:url <https://onco.cc/protocols/radiotherapy-planning-ct-simulation/> ;
  schema:dateModified "2026-11-11"^^xsd:date ;
  onco:related <https://onco.cc/protocols/breast-radiotherapy-positioning-and-setup/>, <https://onco.cc/protocols/breath-hold-left-breast-radiotherapy/>, <https://onco.cc/protocols/prostate-radiotherapy-bladder-and-rectal-preparation/>, <https://onco.cc/protocols/head-and-neck-radiotherapy-immobilisation-mask/>, <https://onco.cc/protocols/respiratory-motion-management-4d-ct-and-gating/>, <https://onco.cc/protocols/iodinated-contrast-kidney-and-metformin/>, <https://onco.cc/protocols/radiotherapy-patient-identification-and-time-out/>, <https://onco.cc/protocols/radiotherapy-pregnancy-and-breastfeeding-enquiry/> ;
  onco:cancers <https://onco.cc/cancers/head-and-neck/>, <https://onco.cc/cancers/breast-cancer/> ;
  onco:technologies <https://onco.cc/technologies/ct/>, <https://onco.cc/technologies/surface-guided-radiotherapy/>, <https://onco.cc/technologies/treatment-planning-systems/>, <https://onco.cc/technologies/iodinated-contrast-media/>, <https://onco.cc/technologies/respiratory-motion-management/> ;
  onco:terms <https://onco.cc/terms/radiotherapy/> .
