Imaging for early stage breast cancer

Intra-fraction respiratory motion and baseline drift during breast RT

- 20 free-breathing patients - 7 passive infrared markers - 15 min mean monitoring time - respiratory motion and baseline drift determination

- breathing amplitude of chest was less than 2 mm - the baseline drift of the body led to more significant setup uncertainties than the respiratory motion

Ricotti et al. Radiother Oncol 122:79–86. 2017