SBRT2015

ESTRO SBRT Course 2015

Lung SBRT using Elekta technology

Mid-ventilation concept

Prescription isodose

ITV

• Periodical tumor motion around the mean tumor position

• Radiation beams do not need to encompass the whole breathing amplitude

• Dose “outside” the beams

• Short probability of tumor “outside” the beams

• Compensation of dose loss with higher doses in the beam centre