A Story of Hypofractionation and the Table on the Wall
Timmerman R · UT Southwestern Medical Center
DoseLab summary
An editorial history of the UT Southwestern SABR constraint tables — often called the “Timmerman tables” — covering how they were developed and revised, and their relationship to AAPM TG-101 and NRG/RTOG protocols. Tables 2–11 separate serial tissues (listed with a volume, a volume max and a max point dose) from parallel tissues (listed with a critical volume and a critical-volume dose max). In Tables 2–7 a footnote defines “point” as ≤0.035 cm³; Tables 8–11 add a contouring-instructions column for each structure.
Why this is useful
One article that holds constraint tables for ten fraction counts, from single-fraction SABR to conventional 30-fraction treatment — plus the history of why versions of these tables differ.
Reference details
- Title
- A Story of Hypofractionation and the Table on the Wall
- Authors / organization
- Timmerman R · UT Southwestern Medical Center
- Publication / protocol
- Int J Radiat Oncol Biol Phys. 2022;112(1):4–21
- Version
- Pending verification
- Year
- 2022
- DOI
- 10.1016/j.ijrobp.2021.09.027
- Disease sites
- Lung, Other, CNS / Brain
- Topics
- SBRT, Dose Constraints, Hypofractionation, Serial vs Parallel
- Fractionation context
- 1, 2, 3, 4, 5, 8, 10, 15, 20 and 30 fractions (Tables 2–11)
- Last reviewed by DoseLab
- 2026-09-22