Method for automatically constructing patient-specific anatomic model based on statistical shape model (SSM)

摘要

#$%^&*AU2020101643A420200910.pdf#####ABSTRACT The present invention provides a method for automatically constructing a patient-specific anatomic model based on statistical shape model (SSM), which mainly includes four processing phases, namely the phase of splitting of a region of interest, the phase of vertex shrinkage, the phase of response setup, and the phase of generation of the patient-specific anatomic model. According to the invention, firstly, preprocessing of input data and enhancement of a region of interest are carried out, and the region of interest is split from each of CT scan images of specific patients. The split regions of interest are then used as training samples which are subjected to gridding with a triangle, and triangular grids are subjected to iterative shrinkage by a vertex shrinkage strategy. A response is then set up between a template sample and a target sample, and the template sample is aligned to the target sample. Finally, a general expression for anatomic structures of patients is generated. By this method, a patient-specific anatomic model can be effectively constructed to assist medical professionals with quick analysis of a patient's condition, thereby providing a reasonable plan for the patient's follow-up treatment.1 / 6 0CD a SampleD/Generation of Image Image Sample Gera en nhancemenD - Registration _, Image -+Expression of E) Respo ) 0 a-= . nse Alignment -*Anatomic U) Setup FIG. 1 FIG. 2