3D	three-dimensional
4DCT	four-dimensional computed tomography
AP	anteroposterior
BCS	breast-conserving surgery
BMI	body mass index
CRT	conformal radiotherapy
CT	computed tomography
CTV	clinical target volume
IMRT	intensity-modulated radiotherapy
IQR	interquartile range
IRB	institutional review board
LR	lateral
PTV	planning target volume
RT	radiotherapy
SI	superoinferior