Skip to main content

Table 3 Target volume dosimetric comparison of stereotactic body radiation therapy and intracavitary brachytherapy

From: Dosimetric feasibility of stereotactic body radiation therapy as an alternative to brachytherapy for definitive treatment of medically inoperable early stage endometrial cancer

Site Volume Mean dose (per fx) ± SD p-value
I-BT SBRT
Uterus     
  V150% 22.66 ± 7.21 16.66 ± 5.44 0.05
  D95% (Gy) 2.34 ± 1.26 8.34 ± 0.05 <0.005
  D90% (Gy) 2.76 ± 1.44 8.69 ± 0.09 <0.005
  D50% (Gy) 6.06 ± 2.88 10.48 ± 0.31 <0.005
BoostCTV     
  D90% (Gy) 5.62 ± 3.79 12.10 ± 0.45 <0.005
PTV     
  D90% (Gy) 2.48 ± 1.27 7.98 ± 0.25 <0.005
  1. Abbreviations: SD standard deviation, I-BT intracavitary brachytherapy, SBRT stereotactic body radiation therapy, fx fraction, V150% the percentage volume of the structure receiving 150 percent of the prescription dose of 8.5 Gy, D(x)% the highest dose received by x percent of the volume.