PD-0064 Multicenter comparison of measures for quantitative evaluation of automatic contouring

Multicenter comparison of measures for quantitative evaluation of contouring in radiotherapy

“…Participation was encouraged through personal invitation (n = 14), word-of-mouth, and informal promotion within appropriate society networks, such as the Dutch medical physics, deep learning in radiotherapy communities and the ESTRO physics workshop groups. The survey was further advertised at ESTRO 2022 during a presentation of the results of a preliminary survey [20] . The survey was open to participation for six months from 30 Jan 2022 to 30 Jun 2022.…”

“…The questionnaire focused on expected areas of variation in definition and implementation of measures following a preliminary study that considered the results of 6 participants from 6 different centers [20] . The questionnaire composed 6 sections; (1) the participant, institution, and software, (2) high-level implementation and internal shape representation of the structures, (3) the range of measurements available, (4) implementation of shape representation conversion and tolerances, (5) distance measure definitions and implementation, (6) results upload and additional information.…”

“…In this study, possible differences in software used in radiotherapy research and by radiotherapy institutes were investigated, using a questionnaire and benchmarking dataset, building on a provisional survey conducted prior to the ESTRO 2022 conference [20] , to establish the level of variation existing in the field of radiotherapy when calculating measures for comparing contours.…”