Automatic computer-aided sacroiliac joint index analysis for bone scintigraphy

Huang, Jia-Yann; Tsai, Ming-Fong; Kao, Pan-Fu; Chen, Yung‐Sheng

doi:10.1016/j.cmpb.2009.07.010

Cited by 7 publications

(1 citation statement)

References 15 publications

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“…CT images have been essential for the evolutionary process of image interpretation associated to the modern techniques of segmentation. This association is currently used in biomedical engineering for disease diagnosis (Huang et al, 2010;Saha et al, 2011) and rapid prototyping (Sun et al;Kelley et al;Benazzi et al, 2011) or research in functional morphology associated to biomechanics through computational simulations (Panagiotopoulou; Chalk et al, Strait et al, 2009Strait et al, , 2010. These applications require high quality of the computational models.…”

Section: Discussionmentioning

confidence: 99%

Computer Graphics Applied to Anatomy: A Study of two Bio-CAD Modeling Methods on Finite Element Analysis of Human Edentulous Hemi-Mandible

et al. 2014

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Computer graphics applied to Anatomy: a study of two Bio-CAD modeling methods on finite element analysis of human edentulous hemi-mandible. Int. J. Morphol., 32(3):803-811, 2014. SUMMARY:Modeling is a step to perform a finite element analysis. Different methods of model construction are reported in literature, as the Bio-CAD modeling. The purpose of this study was to perform a model evaluation and application using two methods of Bio-CAD modeling from human edentulous hemi-mandible on the finite element analysis. From CT scans of dried human skull was reconstructed a stereolithographic model. Two methods of modeling were performed: STL conversion approach (Model 1) associated to STL simplification and reverse engineering approach (Model 2). For finite element analysis was used the action of lateral pterygoid muscle as loading condition to assess total displacement (D), equivalent von-Mises stress (VM) and maximum principal stress (MP). Two models presented differences on the geometry regarding surface number (1834 (model 1); 282 (model 2)). Were observed differences in finite element mesh regarding element number (30428 nodes/16683 elements (model 1); 15801 nodes/8410 elements (model 2). D, VM and MP stress areas presented similar distribution in two models. The values were different regarding maximum and minimum values of D (ranging 0-0.511 mm (model 1) and 0-0.544 mm (model 2), VM stress (6.36E-04-11.4 MPa (model 1) and 2.15E-04-14.7 MPa (model 2) and MP stress (-1.43-9.14 MPa (model 1) and -1.2-11.6 MPa (model 2). From two methods of Bio-CAD modeling, the reverse engineering presented better anatomical representation compared to the STL conversion approach. The models presented differences in the finite element mesh, total displacement and stress distribution.

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