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- 저자 : Suzana Petrovic Savic (검색결과 1 건)
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Parametric Model Variability of the Proximal Femoral Sculptural Shape
Suzana Petrovic Savic,Branko Ristic,Zoran Jovanovic,Aleksandar Matic,Nikola Prodanovic,Nabil Anwer,Lihong Qiao,Goran Devedzic 한국정밀공학회 2018 International Journal of Precision Engineering and Vol.19 No.7
In this paper, a method of parameterisation of a proximal femur model is presented. The created model retains all the anatomical and morphological features of a realistic model. The parametric model of the femur, the so-called master model, is defined by establishing a relation between appropriate femoral regions which extend along the parametrically described axis of the femur. An initial 3D model of the femur is segmented from the CT image and further parameterized to a master model with the potential for customization, i.e. for adaptation to patient-specific values using X-ray images, still maintaining precise anatomical consistency. The first step towards the femur customization is the contour extraction of different types of tissues represented in X-ray images. As medical images can be blurry, image processing was carried out and a Canny edge detector operator was applied. The numerical values of the parameters were determined by manual measuring of defined regions on an X-ray image. The variability testing was performed on 12 femurs. The proposed model can greatly contribute to preoperative planning, implant selection, as well as to the overall shortening of intervention time.
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