# OnCo record imrt-igrt (technology). 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/technologies/imrt-igrt/>
  a schema:MedicalTherapy ;
  onco:kind "technology" ;
  schema:identifier "imrt-igrt" ;
  schema:name "IMRT / IGRT (modern external beam)"@en ;
  schema:description "IMRT and IGRT shape the radiation beam to the tumour's outline from multiple angles and check the patient's position with a scan before every session, so surrounding organs receive less dose. Fewer, larger doses are now standard in breast and prostate cancer, but a low-dose bath still spreads across normal tissue."@en ;
  schema:url <https://onco.cc/technologies/imrt-igrt/> ;
  schema:dateModified "2026-09-17"^^xsd:date ;
  schema:citation <https://doi.org/10.1056/NEJMoa2404873>, <https://doi.org/10.1056/NEJMoa1709937> ;
  onco:status "standard-of-care" ;
  onco:related <https://onco.cc/technologies/fractionation-repopulation-models/>, <https://onco.cc/technologies/total-body-irradiation/>, <https://onco.cc/technologies/tumour-control-probability-models/>, <https://onco.cc/technologies/c-arm-linac/>, <https://onco.cc/technologies/ring-gantry-linac/>, <https://onco.cc/technologies/tomotherapy/>, <https://onco.cc/pairings/proton-vs-imrt/> ;
  onco:sections <https://onco.cc/fronts/radiation/> ;
  onco:companies <https://onco.cc/companies/intraop-medical/>, <https://onco.cc/companies/radformation/>, <https://onco.cc/companies/varian/>, <https://onco.cc/companies/elekta/> ;
  onco:terms <https://onco.cc/terms/alpha-beta-ratio/>, <https://onco.cc/terms/linear-energy-transfer/>, <https://onco.cc/terms/relative-biological-effectiveness/> ;
  onco:trials <https://onco.cc/trials/start-b/>, <https://onco.cc/trials/prime-ii/>, <https://onco.cc/trials/import-low/>, <https://onco.cc/trials/nsabp-b39/>, <https://onco.cc/trials/nrg-cc001/>, <https://onco.cc/trials/catnon/>, <https://onco.cc/trials/int-0116/>, <https://onco.cc/trials/cao-aro-aio-94/>, <https://onco.cc/trials/rapido/>, <https://onco.cc/trials/rtog-9601/>, <https://onco.cc/trials/horrad/>, <https://onco.cc/trials/pop-rt/>, <https://onco.cc/trials/eortc-22922/>, <https://onco.cc/trials/ma-20/>, <https://onco.cc/trials/dbcg-82bc/>, <https://onco.cc/trials/rtog-9402/>, <https://onco.cc/trials/eortc-26951/>, <https://onco.cc/trials/eortc-22033/> ;
  onco:journals <https://onco.cc/journals/cancer-radiotherapie/>, <https://onco.cc/journals/clinical-oncology-rcr/>, <https://onco.cc/journals/practical-radiation-oncology/>, <https://onco.cc/journals/radiation-oncology/>, <https://onco.cc/journals/seminars-in-radiation-oncology/>, <https://onco.cc/journals/strahlentherapie-und-onkologie/> ;
  onco:dependsOn <https://onco.cc/technologies/treatment-planning-systems/>, <https://onco.cc/technologies/ct/>, <https://onco.cc/technologies/in-vivo-dosimetry/> .