MRI-Based Three Dimensional Modeling of Stenting Procedure

2011 ◽  
Author(s):  
Shijia Zhao ◽  
Linxia Gu ◽  
Shailesh Ganpule
Keyword(s):  
Computational Simulation ◽  
Three Dimensional ◽  
Patient Specific ◽  
Open Cell ◽  
Mechanical Responses ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Closed Cell ◽  
Stenosed Artery ◽  
3D Geometry

In this work, the stents-induced mechanical responses of a patient-specific common carotid artery (CCA) were evaluated through computational simulation. The realistic 3D geometry of the artery was constructed from the MRI data. Two types of self-expanding stent design (open-cell and closed-cell) were used to restore the blood flow inside the 60% stenosed artery. The resulting lumen gain, dog-boning effect and arterial stress were estimated. Results suggested that the artery was straightened after stent implantation, and the open-cell design led to bigger lumen gain, better conformability, and less dog-boning effect. This work may facilitate the development of new stent designs.

scholarly journals A three dimensional modeling method for spherical open cell aluminum foams based on spherical core stratification algorithm

China Foundry ◽  
2019 ◽  
Vol 16 (4) ◽  
pp. 248-255 ◽  
Author(s):  
Ming-si Qi ◽  
Wei Zhang ◽  
Jun-yuan Wang ◽  
Guang-ming Ren ◽  
Yi-ping Yin ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Modeling Method ◽  
Aluminum Foams ◽  
Open Cell ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Spherical Core

3d Geometric Model of Transparent Tower Equipment Display in OpenGL

2014 ◽  
Vol 722 ◽  
pp. 281-284 ◽  
Author(s):  
Hai Ru Yang ◽  
Guo Zhi Chen ◽  
Hui Zhen Wang ◽  
Liang Li
Keyword(s):  
Dynamic Model ◽  
3D Model ◽  
Geometric Model ◽  
Three Dimensional ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Tower Equipment ◽  
3D Geometry ◽  
High Level ◽  
3D Geometric Model

It’s difficult to describe the 3d geometry and to establish the 3d model of tower equipment in OpenGL. High-level command functions to define complex three-dimensional modeling is not provided in OpenGL. This paper introduces 3d model of the tower equipment how to display dynamically in OpenGL. Interface of OpenGL import 3d model is description in detailed. Storaging format and reading file of STL (Stereo Lithography) are elaborated. How to build the 3d model is descripted. When tower equipment displayed dynamically, what is the key step to establish the model of tower equipment. The dynamic model of the whole tower equipment is displayed, in order to see clearly the structure of tower equipment.

Patient-Specific Three-Dimensional Computational Heart Modeling and Printing to Enhance Clinical Understandings and Treatment Planning: Congenital Recurrent Pulmonary Artery Stenosis and Transcatheter Pulmonary Valve Replacement

2020 ◽  
Author(s):  
Amanda C. Tenhoff ◽  
Varun Aggarwal ◽  
Rebecca Ameduri ◽  
Alex Deakyne ◽  
Tinen L. Iles ◽  
...  
Keyword(s):  
Congenital Heart Disease ◽  
Heart Disease ◽  
Pulmonary Artery ◽  
Congenital Heart ◽  
Pulmonary Valve ◽  
Three Dimensional ◽  
Patient Specific ◽  
Pulmonary Artery Stenosis ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling

Abstract Advances in the surgical and interventional management of children with congenital heart disease has improved survival and outcomes. Each such patient is born with specific anatomical variations which call for detailed evaluations so to plan for appropriate patient-specific management. Significant progress has been made in commercially available two-dimensional imaging – i.e. echocardiogram, CT, and MRI – yet using such, three-dimensional anatomical details can be difficult to accurately represent. In addressing this concern, it has been shown that patient-specific three-dimensional modeling can be useful for interventional procedural or surgical planning [1]. Here we present two cases for which patient-specific anatomical three-dimensional modeling and printing were utilized for (1) the pre-sizing and placement of stents within a complex bifurcation pulmonary artery stenosis; and (2) evaluating the candidacy of the patient’s anatomy for a transcatheter pulmonary valve placement. Detailed within this technical brief are de-identified case information, workflows for model generations, and results regarding clinical usage. In conclusion, we found these patient-specific models to be an advantageous resource for treatment planning in these two pediatric congenital heart disease cases.

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