Related Experiment Videos
Fractionated radiation therapy after Strandqvist
Acta Radiologica. Oncology
|January 1, 1984
Summary
Radiation therapy models evolve from empirical to realistic, predicting normal tissue damage. Research highlights accelerated and hyperfractionation, emphasizing the need for tumor cell proliferation data.
Area of Science:
- Radiation Oncology
- Medical Physics
- Radiobiology
Background:
- Radiation therapy dose prediction models have evolved significantly.
- Early models were empirical, lacking specificity for tissue reactions.
Purpose of the Study:
- To describe the progression of radiation dose prediction models.
- To review new applications and implications for non-standard fractionation.
- To highlight areas for future research in radiation therapy.
Main Methods:
- Historical review of dose-response models: cube root law, Strandqvist, Nominal Standard Dose (NSD), Time-Dose-Fractionation (TDF), Constant Radiobiological Effect (CRE).
- Discussion of biologically based time factors and linear-quadratic (LQ) dose-response models.
- Review of recent advancements and their clinical applications in radiation therapy.
Main Results:
- Models have advanced from empirical to more realistic and biologically specific.
- Linear-quadratic models and biologically based time factors represent a significant improvement.
- Non-standard fractionation, including accelerated and hyperfractionation, shows promise.
Conclusions:
- Accelerated and hyperfractionation warrant further investigation in radiation therapy.
- More data on clonogenic cell proliferation rates in human tumors are crucial for refining models.
- Continued development of predictive models enhances the precision of radiation therapy.