ESTRO meets Asia 2024 - Abstract Book

S118

Interdisciplinary – Education in radiation oncology

ESTRO meets Asia 2024

[10]Elshafeey N, Kotrotsou A, Hassan A, et al. Multicenter study demonstrates radiomic features derived from magnetic resonance perfusion images identify pseudoprogression in glioblastoma [J]. Nat Commun, 2019, 10(1): 3170

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Contouring practices and educational priorities in Southeast Asia: Results from a SEAROG survey

August C Anderson 1 , Jickson Flores 2 , Daryl Obciana 2 , Muthukkumaran Thiagarajan 3 , Enrico C Tangco 4 , Moe Hlaing 5 , Miriam J Calaguas 6 , Angela Giselvania 7,8 , Imjai Chitapanarux 9 , Benjamin Li 1,10,11 1 Radiation Oncology, University of Washington, Seattle, USA. 2 Radiotherapy, Jose Reyes Memorial Medical Center, Manila, Philippines. 3 Radiotherapy and Oncology, Hospital Kuala Lumpur, Kuala Lumpur, Malaysia. 4 Radiation Oncology, The Medical City, Pasig City, Metro Manila, Philippines. 5 Radiation Oncology, Yangon General Hospital, Yangon, Myanmar. 6 Radiation Oncology, St. Luke’s Medical Center, Quezon City, Philippines. 7 Radiation Oncology, Cipto Mangunkusumo Hospital, Jakarta, Indonesia. 8 Radiation Oncology, Universitas Indonesia, Jakarta, Indonesia. 9 Radiology, Change Mai University, Chiang Mai, Thailand. 10 Radiation Oncology, Fred Hutchinson Cancer Center, Seattle, USA. 11 Rayos Contra Cancer, Rayos Contra Cancer, Seattle, USA

Purpose/Objective:

When using conformal treatment techniques (including 3D, IMRT, VMAT, SBRT, and SRS), additional training and time are required for accurate contouring of target and normal tissue volumes compared to 2-dimensional radiotherapy. Many radiation oncology centers in Southeast Asian Low- and Middle-Income Countries (LMICs) have implemented conformal planning techniques, but the patterns and priorities for contouring practices and education between consultants and trainees in this region are unclear. We report a cross-sectional survey on contouring practices and education priorities.

Material/Methods:

Members of the Southeast Asian Radiation Oncology Group and Nepalese radiation oncologists were invited to complete an English-language online survey designed by Rayos Contra Cancer, a non-profit organization focused on radiation oncology education in limited-resource settings. Questions were developed to assess needs and priorities for online remote contouring and planning education courses in the region. Questions included demographics; treatment techniques; time contouring target and normal volumes, and the number of separate normal organs contoured, across disease sites; as well as perceived needs and priorities for further training. Responses were summarized with descriptive statistics.

Results:

Of 127 initiated surveys, 121 completed surveys were analyzed. Respondents were from Malaysia (46; 38%), Indonesia (39; 32%), Thailand (22; 18%), Myanmar (12; 9.9%), and Nepal (2, 1.7%). Consultants (n = 79, 65%) were from Indonesia (38; 48%), Thailand (17; 22%), Malaysia (12; 15%), Myanmar (10; 13%), and Nepal (2; 2.5%); 92% practiced in the public sector. The three most common disease sites treated overall were Head/Neck (for 36% of consultants), Breast (for 30%), and Gynecologic (for 23%); most used conformal techniques (3D 95%; IMRT 71%; VMAT 71%; SRS 25%; SBRT 29%). Trainees (n = 42, 35%) were largely from Malaysia (81% of trainees); almost all had training in conformal treatment techniques (3D 93%; IMRT 79%; VMAT 50%; SRS 40%; SBRT 48%).