AAPM TG-263: Standardizing Nomenclatures in Radiation Oncology
Mayo CS, Moran JM, Bosch W, et al. · AAPM
DoseLab summary
Recommendations for standardized naming of targets, organs at risk and dose-volume metrics. Section 9 sets out the DVH-metric nomenclature DoseLab follows: Vx (volume receiving at least dose x), Dx (minimum dose to the hottest sub-volume x), CVx and DCx (the "cold" complements), output units in square brackets (Gy or % of prescription; cc or % of the structure), and an EQD2Gy unit with the α/β written in parentheses — for example D90%(10)[EQD2Gy]. Section 10 asks that DVH metrics say whether a lower-dose PTV is segmented (excludes the higher-dose PTV) or not. Read in the AAPM report PDF.
Why this is useful
Consistent structure names make plans, scripts and constraint templates portable between people and systems — and its DVH-metric naming (V20Gy[%], D0.1cc[Gy], CV15Gy[cc]) removes the guesswork about units.
Reference details
- Title
- AAPM TG-263: Standardizing Nomenclatures in Radiation Oncology
- Authors / organization
- Mayo CS, Moran JM, Bosch W, et al. · AAPM
- Publication / protocol
- AAPM Report No. 263 (January 2018); also Int J Radiat Oncol Biol Phys. 2018;100(4):1057–1066
- Version
- Pending verification
- Year
- 2018
- DOI
- 10.1016/j.ijrobp.2017.12.013
- Disease sites
- Lung, Prostate, GI, Head & Neck, Breast, CNS / Brain, GYN, GU, Sarcoma, Other
- Topics
- Nomenclature, Contouring, AAPM, Plan Evaluation, Dose-volume metrics
- Fractionation context
- Pending verification
- Last reviewed by DoseLab
- 2026-10-06