Fig. 5.

Illustration of the volume results in Tables 1 and 2. Only the five largest tumours are shown. The mean relative errors are indicated as the red filled symbols. The volumes along the horizontal axis are categorical only. The points have been randomly displaced in the horizontal direction to increase visibility, but this should not be interpreted as a variation in reference volume. Results are presented for ASR and AS images using a) FS 24 h p.i., b) OM 24 h p.i., c) FT 24 h p.i., d) FS 336 h p.i. and e) OM 336 h p.i