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Table 2 Dose constraints for organs at risk

From: Intrafractional vaginal dilation in anal cancer patients undergoing pelvic radiotherapy (DILANA) – a prospective, randomized, 2-armed phase-II-trial

Range

Organ at risk

Parameter

Constraint

Optimal (tolerable)

1

Bladder

Dmean

< 30 Gy (< 40 Gy)

2

Sigma

Dmax

< 50 Gy (< 57 Gy)

3

Colon

Dmax

200 cc

< 50 Gy (< 54 Gy)

< 30 Gy

4

Cauda equina

Dmax

< 25 Gy (< 45 Gy)

5

Femoral heads

Dmean

< 30 Gy (< 35 Gy)

6

Vagina

Dmean

< 40 Gy

  1. Gy Gray, D Dose
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BMC Cancer

ISSN: 1471-2407

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