Page 43 - Advanced concepts in orbital wall fractures

and inferior orbital fissure. The smart shaper tool intelligently facilitates
recontouring of the segmented volume in 3D by working on a 2D slice.
This saves time, as not every slice has to be altered one at the time.
However, this probably caused the overcorrection as alterations were C made to other slices without accurate control27. 2
Figure 6 Distance maps of method SA (left) and method SAA (right) projected on the gold standard segmentation; red illustrates excess and green deficiency in volume of the (semi-) automatic methods compared to gold standard.
The Dice coefficients of all three methods compared to the gold standard are excellent with method SAA being slightly better than method SA. The outliers in method SA described earlier might explain this. Method SAA showed a slightly better overlap between the segmentation by means of the Dice coefficient. Nevertheless, method SA proves to be superior considering the volume accuracy, reproducibility, and time efficiency compared with a high Dice coefficient.
Conclusion
In conclusion, in this study a manual segmentation, anterior boundary and three methods using iPlan 3.0.5 were validated for the unaffected bony orbit. The results showed that method SA (automatic segmentation with
Volume segmentation method
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