Inter-Observer variability in organs at risk contouring among radiation therapy students and qualified radiation therapists.

ABSTRACT:

Introduction

Contouring organ-at-risk structures (OARs) remains an important skill that must be developed through education and training. This study assessed variations in OAR contouring among undergraduate radiation therapy students and qualified radiation therapists (RTs).

Methods

Four planning computed tomography datasets (Brain, Lung, Parotid, and Prostate), which included 21 clinician-validated OAR contours, were utilised as references in this contouring study. Participants included 2nd to 4th year students, as well as qualified RTs. A quantitative comparison of contours was performed using the Dice Similarity Coefficient (DICE) and Hausdorff distance (HD) metrics. Statistical analyses assessed variations across structures, tumour sites, experience levels, and contourin

SUBMITTER: Chamunyonga C 

PROVIDER: S-EPMC12719899 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature