A study of the dosimetric impact of daily setup variations measured with cone-beam CT on three-dimensional conformal radiotherapy for early-stage breast cancer delivered in the prone position.
Annie XiaoJessica JutzyGreg HubertMeghan EdensMaxine WashingtonYasmin HasanSteven J ChmuraHania A Al-HallaqPublished in: Journal of applied clinical medical physics (2020)
Large translational variations that occur when positioning prone breast patients had small but significant dosimetric effects on 3DCRT plans. Daily CBCT may still be necessary to correct for rotational variations that occur in 20% of treatments. To maintain planned dose metrics, unintended beam shifts toward the heart and the contribution of wedged fields should be minimized.
Keyphrases
- early stage
- radiation therapy
- end stage renal disease
- cone beam
- image quality
- newly diagnosed
- physical activity
- chronic kidney disease
- computed tomography
- heart failure
- prognostic factors
- radiation induced
- health insurance
- atrial fibrillation
- sentinel lymph node
- contrast enhanced
- locally advanced
- young adults
- lymph node
- cone beam computed tomography