Effect of Hysterectomy on Volume of Bowel Irradiated in Gynaecological Malignancies: A Comparative Dosimetric Study

Chaitra M Deshpande, Venkataraman Kini, K Kamalaksh Shenoy, Avin Kumar, Kavitha

Abstract: Our study aims to compare dosimetrically the dose received by the bowel during pelvic irradiation in patients receiving definitive or adjuvant radiation therapy for gynaecological malignancies.60 patients with gynaecological malignancies receiving radiation therapy were selected. They received external beam radiation therapy by 3 dimensional conformal radiation therapy (3DCRT). The volume of bowel receiving 90 % and 100 % of the dose was significantly higher. The bowel dose is drastically increased in the post-operative gynaecological malignancies undergoing radiation therapy.

Keywords: 3DCRT, IMRT, Radiotherapy, Gynaecological malignancy