Advanced Skills in Modern Radiotherapy 2018

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