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. Author manuscript; available in PMC: 2017 Jul 13.
Published in final edited form as: Oral Oncol. 2015 May 7;51(7):716–723. doi: 10.1016/j.oraloncology.2015.02.003

Table 2.

Dosimetric parameters for the 48 patients undergoing carotid sparing intensity modulated radiotherapy.

PTV Dmax (Relative)
Median (range) 105% (103%-111%)
Mean 105%
Left Carotid Dose
Median Dmean (range) 49.9 Gy (21.7-60.5 Gy)
Mean 48.3 Gy
Median V40Gy (range) 78.4% (46.7%-96.6%)
3.4cc (1.4-7.8cc)
Median V50Gy (range) 64.1% (21.9-93.4%)
2.8cc (1.0-6.7cc)
Right Carotid Dose
Median Dmean (range) 47.9 Gy (20.5-61.5 Gy)
Mean 47.7 Gy
Median V40Gy (range) 75.4% (30.9%-96.3%)
3.9cc (1.4-8.7cc)
Median V50Gy (range) 60% (10.7%-93.7%)
2.9cc (1.1-6.3cc)

Abbreviations: cc, cubic centimeters; DMax, maximum dose; DMean, average dose; PTV, planning target volume; V40Gy/V50Gy, the volume of the carotid artery receiving at least 40Gy/50Gy.