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Take home messages
• PET based target volume contouring is a open field of research, where
• human brain and manual interaction is needed and desirable and
• consultation of NM specialist/radiologist improves contouring accuracy
• autocontouring methods
- may reduce workload
- may improve inter-observer-variability
- may need calibration
- do bear inter-method variability
• however, e.g. 4D-contouring will require automatic methods
• institutional standardisation of process of PET based contouring should
be established
• CAVE uncritical use of autosegmentation tools provided by manufacturer
of PET or PS !