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SU-E-I-20: The Application of Traditional Snake Model and Balloon-Snake Model in Automatic Organ Contouring
Purpose:
To compare the traditional Snake model and Balloon-Snake model on automatic organ contouring.
Methods:
For tumors in brain, chest and abdomen, two patients were enrolled for each part. Grey matter, lung and liver for each patient were contoured automatically by Snake model and Balloon-Snake model, and were also contoured manually by radiologist respectively. Characteristics and dynamic capabilities were compared between the two models.
Results:
The traditional Snake model will bring good contouring Result only if the primary contour is close enough to the target edge. But, if the force field area is relatively small, the automatic contouring will not bring good Result on boundary deep concave. The Balloon-Snake model can overcome those shortcomings and improve the traditional Snake model. However, the primary model of Balloon-Snake can not cross border, doesn't work well on boundary cracks reconstruction, has small force field.
Conclusions:
The Balloon-Snake model improved the traditional Snake model and has better dynamic capabilities. It has also more practical value on automatic organ contouring.
