Material-solid modeling of human body: A heterogeneous B-spline based approach

Warkhedkar, Ravi M.; Bhatt, Amba D.

doi:10.1016/j.cad.2008.10.016

Cited by 23 publications

(13 citation statements)

References 34 publications

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“…18 There were a number of earlier works for heterogeneous material modeling of mechanical parts. [26][27][28][29][30] But material distribution in the human body is quite complex compared to man-made materials.…”

Section: Ct Image Based 3d Bio-cad Modeling Methodsmentioning

confidence: 99%

“…Depending on the material specification methods, heterogeneous human body modeling can be classified into four categories as voxel based, explicit function based, implicit function based, and control point based modeling methods. 18 In the voxel based method, the entire model space is discretized into small elemental volume blocks called voxels. Geometrical coordinates, as well as material composition, are specified at the voxel.…”

Section: Ct Image Based 3d Bio-cad Modeling Methodsmentioning

confidence: 99%

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Three-dimensional human body model reconstruction and manufacturing from CT medical image data using a heterogeneous implicit solid based approach

Yoo

2011

Int. J. Precis. Eng. Manuf.

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This paper presents a simple and effective method for reconstructing 3D bio-CAD models from a sequence of computer tomography (CT) medical image data. In this work, a heterogeneous implicit solid representation method is proposed to describe a heterogeneous model of the human body. The use of implicit solid as a basis for 3D bio-CAD models facilitates the robustness and simplification of the process for converting CT images to a 3D bio-CAD model. An almost perfect 3D bio-CAD model is achieved from implicit solid interpolation combined with domain decomposition. The implicit solid is defined by a radial basis function which is a continuous scalar-value function over the domain R 3 . The generated solid consists of the set of all points at which this scalar function value is the Houndsfield unit (HU) value obtained from the CT image. CT images of human bone were used as the case studies for the reconstruction of the 3D solid model from CT scan data. Experimental results show that the proposed method has the potential to represent internal human body details accurately and efficiently suitable for rapid prototyping, finite element analysis, and tissue engineering.

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Section: Ct Image Based 3d Bio-cad Modeling Methodsmentioning

confidence: 99%

Section: Ct Image Based 3d Bio-cad Modeling Methodsmentioning

confidence: 99%

Three-dimensional human body model reconstruction and manufacturing from CT medical image data using a heterogeneous implicit solid based approach

Yoo

2011

Int. J. Precis. Eng. Manuf.

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“…The processed grided data points of a group of slices are treated as control points. The B-spline triparametric hyperpatch (see Bhatt and Warkedkar, 2008;Warkhedkar and Bhatt, 2008) approach is used to represent solid model of proximal femur. Generally, in B-spline triparametric hyperpatch a point P(x, y, z, M) is represented as follows:…”

Section: Model Generation and Determination Of Materials Propertiesmentioning

confidence: 99%

A B-spline based heterogeneous modeling and analysis of proximal femur with graded element

Pise

Bhatt

Srivastava

et al. 2009

Journal of Biomechanics

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“…Shengyon Cai and Juntong Xi [50] has given a control modeling approach for constructing tissue engineering bone scaffold with defined pore size distribution based on the hexahedral mesh refinement which enjoyed easy controllability and higher accuracy in comparison to other methods such as varying processing parameter in supercritical fluid processing and multi-interior architecture design. Ravi M et al [51] presented two different types of modeling methods which is capable of representing both the soft and the hard tissue, namely B-spline heterogeneous fairing and B-spline heterogeneous fit. These two approaches will give the use modeling flexibility when used with different proportion of CT data Figure 3.…”

Section: Cad For Porous Tissue Scaffoldsmentioning

confidence: 99%

Recent Development in Finite Element Methods and Computer Aided Design in the Development of Porous Scaffolds-A Review

Sahai¹,

Rp²

2012

J Tissue Sci Eng

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Tissue engineering the development of functional substitute to replace missing or malfunctioning human tissue and organs by using biodegradable biomaterials as scaffolds to direct specific cell types to organize into three dimensional structures and perform differentiated function of targeted tissue. The important factors to be considered in designing of microstructure were porosity, pore size, and pore structure with respect to nutrient supply for transplanted and regenerated cells. Performance of various functions of the tissue structure depends on porous scaffold microstructures with specific porosity, pore size, characteristics that influence the behavior of the incorporated cells. Finite element Methods (FEM) and Computer Aided Design (CAD) combines with manufacturing technologies such as Solid Freeform Fabrication (SFF) helpful to allow virtual design, characterization and production of porous scaffold optimized for tissue replacement with appropriate pore size. Finite Element Modeling used to calculate the stress areas in a complex scaffold structures and thus predict their mechanical behavior during in vivo environment (eg. As load bearing in bone tissue scaffolds) is evaluated. This article reviews recent development and application of Finite Element Methods (FEM) and Computer Aided Design and computer-aided manufacturing (CAD & CAM), and rapid prototyping (RP) technology in the development of porous tissue scaffolds.

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Material-solid modeling of human body: A heterogeneous B-spline based approach

Cited by 23 publications

References 34 publications

Three-dimensional human body model reconstruction and manufacturing from CT medical image data using a heterogeneous implicit solid based approach

Three-dimensional human body model reconstruction and manufacturing from CT medical image data using a heterogeneous implicit solid based approach

A B-spline based heterogeneous modeling and analysis of proximal femur with graded element

Recent Development in Finite Element Methods and Computer Aided Design in the Development of Porous Scaffolds-A Review

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