ESTRO 2023 - Abstract Book

S1944

Digital Posters

ESTRO 2023

Conclusion In this small single-center series T-score, has showed clinical utility as prognostic factor and can predict parameters for IGABT such as volume and interstitial needle application.

PO-2161 uterovaginal brachytherapy based on CT imaging: toxicities and local control

S. Morchid 1,1 , N. Sellal 1 , M. El Hfid 1

1 Mohammed VI university hospital, radiotherapy department , Tangier, Morocco

Purpose or Objective Cervical cancer is common in developing countries, the standard treatment for locally advanced stages is concomitant radiochemotherapy (CRC) followed by uterovaginal (UV) brachytherapy. The objective of our study is to evaluate toxicities and local control (LC) after planned brachytherapy on a computed tomography (CT) imaging. Materials and Methods This is a retrospective study of all patients irradiated for locally advanced cervical cancer and who received additional UV brachytherapy, within the radiotherapy department of the Mohammed VI university hospital in Tangier, on a period of 5 years between April 2017 and April 2022. For brachytherapy planning, we used a Fletcher applicator. After placing the applicator, a CT imaging is performed which will be used to contour the target volumes and organs at risk (OAR). Results Among 104 patients followed in our department for cervical cancer, 63 patients had received CRC followed by UV brachytherapy. The average age is 54 years (30-80). At diagnosis, 53.9% of patients were classified as stage II, stages III