Simultaneous integrated boost (SIB) radiation therapy of right sided breast cancer with and without flattening filter - A treatment planning study

Table 2 Comparison of plan delivery

Plan	Time [min:sec]	MU	Control points
IMRT FF	09:29 ± 1:25	630 ± 114^a	188 ± 31^a
IMRT FFF	10:13 ± 1:30	792 ± 128	228 ± 39
VMAT FF	2:38 ± 0:17	713 ± 77^a	162 ± 10^a
VMAT FFF	2:27 ± 0:14	852 ± 105	181 ± 7
tVMAT FF	1:58 ± 0:14	651 ± 124^a	53 ± 2
tVMAT FFF	*1:20 ± 0:07*	763 ± 96	52 ± 2

Mean values and standard deviation of delivery time, monitor units and control points for FF and FFF mode averaged over all patients separated by the treatment technique. Bold values indicate statistically significant superior values in the comparison of FF vs FFF. Bold-italic letters indicate best values in the comparison of all planning techniques and irradiation modes. ^aindicates statistical significance in the comparison of FF vs FFF without judgement, since the number of monitor units and the number of control points are no measures of quality

ISSN: 1748-717X