AROI-ESTRO GYN Teaching Course

2D inter application conclusion

• The inter-fraction dose variation of about 10% is seen in 60% of cases for both rectum and bladder. However , maximum variation for rectum and bladder is within 20% and 30% respectively.

• The variation in ICRU rectal point was less as compared to ICRU Bladder point doses

• Inter-fraction variation in doses and spatial location may be critical if the ICRU bladder and rectal point doses are high at first brachytherapy planning