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Fig. 9. Comparison of mid-sagittal magnetic resonance images (MRIs) (left) and
superimposed mid-sagittal outputs (right) from the model. The frames shown are
from sequence 7732-S3, frame 17 (A), sequence 7732-S3, frame 24 (B), and
sequence 7732-S3, frame 35 (C). The outline of the odontophore, the outline of
the radular stalk and the overall outline of the buccal mass were initially
extracted from the MRIs shown on the left. The dorsal and ventral cross
sections of the model I3 rings were placed by the model.