Intrafractional target motions and uncertainties of treatment setup reference systems in accelerated partial breast irradiation.

PURPOSE This study investigated the magnitude of intrafractional motion and level of accuracy of various setup strategies in accelerated partial breast irradiation (APBI) using three-dimensional conformal external beam radiotherapy. METHODS AND MATERIALS At lumpectomy, gold fiducial markers were strategically sutured to the surrounding walls of the cavity… CONTINUE READING