Gynae BT_Lucknow_2018

Planning aim and prescription dose

 Planning aim: what you want to obtain  Prescribed dose: what you decide to treat

Case 6, IIIB, IC/IS BT

Appendix, ICRU 89 , PP201-207

Structure

Dose-volume parameter

Planning aim, Gy Prescribed dose Gy

CTV

EQD2

D

≥ 85

88.9

HR

10

90

3

Bladder

EQD2

D D

≤ 90 ≤ 70

71.1 65.6

3

2cm

3

Rectum EQD2 3

2cm

3

Sigmoid

EQD2

D

≤ 70

57.4

3

2cm

3

Bowel

EQD2

D

≤ 70

53.3

3

2cm

57