Radiation therapy (or radiotherapy) uses ionizing radiation, generally as part of cancer treatment to control or kill malignant cells.
|modality||OntologyClass||1..1||The modality of radiation therapy (e.g., electron, photon,…). REQUIRED.|
|body_site||OntologyClass||1..1||The anatomical site where radiation therapy was administered. REQUIRED.|
|dosage||int32||1..1||the total dose given in units of Gray (Gy). REQUIRED.|
|fractions||int32||1..1||The total number of fractions delivered as part of treatment. REQUIRED.|
Terms from the NCIT can be used to represent the modality of radiation therapy. Four examples are shown here:
- Electron Beam (NCIT:C28039)
- Proton Radiation (NCIT:C40431).
- Photon Beam Radiation Therapy (NCIT:C104914)
- High-LET Heavy Ion Therapy (NCIT:C15458).
The NCIT terms themselves specify whether the radiation therapy was administered externally or internally. For instance, NCIT terms from the Internal Radiation Therapy (NCIT:C15195) subhierarchy would be used to indicate a type of internal radiation therapy.
The total dosage administered, indicated in units of Gray.
The number of fractions into which the radiation dosage was divided.