Gynae BT_Lucknow_2018

CT guided Target Definition / Contouring High Risk CTV:

STD: Clinical + MR Based (Pre Rx +Brachy)

Clinical + Pre Rx MR + CT Based

Whole of Cervix

•

Presumed extensions at brachy

•

• GTV-B + Whole cervix

- Parametrium: Clinical + CT imaging (Trans rectal US*) + Pre Rx MR

• Presumed tumour extensions

- Endocervical: Clinical + Pre-Rx MR

- Local extent

- Vagina: Disease at Diagnosis + EUA at Brachy

- Residual grey zones on MR

• Safety margins: superiorly along the uterus

• NO SAFETY MARGINS

(lower 2/3rds of uterus)

* Intra-operative TRUS Imaging findings if available