ESTRO 2024 - Abstract Book

S2729

Interdisciplinary - Global health

ESTRO 2024

follow-up. Furthermore, AI-assisted contouring reduced variance for multiple organs-at-risk - even for structures where median DSC did change.

This study went beyond the established benefits of AI-assisted contouring (inter-observer variation and contouring time), and found that AI-assisted contouring can increase contour quality among radiation oncologists globally.

Keywords: auto-segmentation,head-and-neck,LMIC

References:

[1] Scoccianti et al. Organs at risk in the brain and their dose-constraints in adults and in children: A radiation oncologist’s guide for delineation in everyday practice - ScienceDirect n.d. https://www.sciencedirect.com/science/article/abs/pii/S0167814015000808?via%3Dihub (accessed June 27, 2023). [2] Brouwer CL, Steenbakkers RJHM, Bourhis J, Budach W, Grau C, Grégoire V, et al. CT-based delineation of organs at risk in the head and neck region: DAHANCA, EORTC, GORTEC, HKNPCSG, NCIC CTG, NCRI, NRG Oncology and TROG consensus guidelines. Radiother Oncol 2015;117:83–90. https://doi.org/10.1016/J.RADONC.2015.07.041. [3] Warfield SK, Zou KH, Wells WM. Simultaneous truth and performance level estimation (STAPLE): an algorithm for the validation of image segmentation. IEEE Trans Med Imaging 2004;23:903–21. https://doi.org/10.1109/TMI.2004.828354.

397

Digital Poster

Bridging the cancer care gap in the North: Radiation oncology led clinic improving access in Nunavut

Marc Gaudet 1,2 , Julie Renaud 1 , Gwen Barton 3 , Carolyn Roberts 3 , Kelly Linden 1 , Sara Moore 4 , Gordon Locke 1 , Gad Perry 1 , Francois DeWet 2 1 The Ottawa Hospital, Radiation Oncology, Ottawa, Canada. 2 Qikiqtani General Hospital, Radiation Oncology, Iqaluit, Canada. 3 The Ottawa Hospital, Indigenous Cancer Program, Ottawa, Canada. 4 The Ottawa Hospital, Medical Oncology, Ottawa, Canada

Purpose/Objective:

Residents of Nunavut (Nunavummiut) live in some of the northernmost remote communities in the world. They face significant barriers in accessing cancer care due to limited healthcare resources, lack of screening, and long distances to travel to receive specialist care in Southern Canada. The majority of the population is Inuit with Inuktitut as a first language. They also face cultural barriers as well as fear of leaving their families and homeland to receive cancer care and A group of Radiation Oncologists with specialized nurse navigation support started a remote cancer care clinic in Iqaluit, Nunavut in July 2022 to deliver care closer to home.

Material/Methods: