A User Interface for 3 D Statistical Model Building of AnatomicalStructuresA

We present a graphical user interface which facilitates the deenition of anatomical boundaries and landmarks for automated model-based segmentation and analysis using 3D Active Shape Models (ASMs). ASMs provide a statistically-based approach to automatic segmentation which is completely general in terms of both imaging modalities and the anatomical objects of interest. Further, the ASM guarantees an anatomically plausible result by incorporating a priori knowledge of the objects of interest. This approach is therefore well suited to the interpretation of medical images.