. Author manuscript; available in PMC: 2021 Jul 1.

Published in final edited form as: Pract Radiat Oncol. 2019 Nov 29;10(4):265–273. doi: 10.1016/j.prro.2019.11.007

Table 2.

Acceptable dose volume variations and unacceptable deviations among institutions requiring one benchmark resubmission

Criterion failure mode	3DCRT (n = 30)	IMRT (n = 15)	SIB (n = 17)

≥1 unacceptable deviations	9 (30.0%)	2 (13.3%)	5 (29.4%)
≥2 acceptable variations	17 (56.7%)	8 (53.3%)	7 (41.2%)
Both ≥ 1 and ≥ 2	4 (13.3%)	5 (33.3%)	3 (17.6%)
Isolated hot spot			1 (5.9%)
Did not pass visual review			1 (5.9%)

Abbreviations: 3DCRT = 3-dimensionalconformalradiationtherapy; IMRT = intensity-modulated radiation therapy; SIB = simultaneous integrated boost.