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Recommendations to Decrease Observer
Variability
•
Use of contouring guidelines and atlases
•
Use of secondary imaging data sets
•
Use of auto-contouring tools
➢
Not to be used in an isolated fashion but to be adjusted for each
individual patient
•
Attendance at contouring workshops
•
Multidisciplinary input – open communication
•
Peer review of contours, regardless of who completed the
delineation
•
Education within the clinic and competency based approach to
new roles/responsibilities
(Bristow et al., 2014)
Vinod S et al., A review of interventions to reduce inter-observer variability
in volume delineation in radiation oncology. JMIRO. 2016, 60(3): 393-406