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. 2019 Aug 20;9(8):e030731. doi: 10.1136/bmjopen-2019-030731

Table 2C.

Target volume objectives and organs at risk constraints—virtual HDRB, EBRT component 36 Gy in 12 fractions

Objectives Protocol Minor variation Major variation
PTV_3600 D95% ≥36 Gy 34.2≤36 Gy <34.2 Gy
PTV_3600 D98% ≥34.2 Gy 32.4≤34.2 Gy <32.4 Gy
PTV_3600 D2% ≤37.8 Gy >37.8–38.5 Gy >38.5 Gy
PTV_3600 (0.1cc) ≤38.5 Gy >38.5–39.6 Gy >39.6 Gy
Constraint
Small Bowel Dmax (0.1cc) ≤36 Gy >36–38 Gy >38 Gy
Fem Head Dmax (0.1cc) ≤25 Gy >25–35 Gy >35 Gy
Rectum V30 Gy ≤25% >25%–35% >35%
Bladder V32 Gy ≤25% >25%–35% >35%

CTV, cilical target volume; PTV, planning target volume.