Deformable modeling of human liver with contact surface

Adil Al-Mayah; Joanne Moseley; Mike Velec; Kristy Brock

doi:10.1109/TIC-STH.2009.5444517

Deformable modeling of human liver with contact surface

Adil Al-Mayah, Joanne Moseley, Mike Velec, Kristy Brock

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

4 Scopus citations

Abstract

Patient specific 3D finite element models have been developed using 4DCT (3D+time) image data for 5 liver cancer patients. Each model consists of the liver, tumors, left and right kidneys, stomach, spleen and body. Breathing motion of the liver, spleen and body is found and applied as displacement boundary conditions in the model. Sliding of the liver relative to the surrounding tissues is modeled using frictionless contact surfaces. Landmarks representing vessels bifurcation inside the liver are used for the model accuracy test. The goal of the study is to examine the effect of contact surface model on the performance of the deformable image registration of the liver. The accuracy of the model is improved by applying contact surface. Substantial displacement differences are observed between models with and without contact surface of the liver. The largest difference is in the Superior-Inferior (SI) followed by Anterior-Posterior (AP).

Original language	English (US)
Title of host publication	TIC-STH'09
Subtitle of host publication	2009 IEEE Toronto International Conference - Science and Technology for Humanity
Pages	137-140
Number of pages	4
DOIs	https://doi.org/10.1109/TIC-STH.2009.5444517
State	Published - 2009
Externally published	Yes
Event	2009 IEEE Toronto International Conference - Science and Technology for Humanity, TIC-STH'09 - Toronto, ON, Canada Duration: Sep 26 2009 → Sep 27 2009

Publication series

Name	TIC-STH'09: 2009 IEEE Toronto International Conference - Science and Technology for Humanity

Other

Other	2009 IEEE Toronto International Conference - Science and Technology for Humanity, TIC-STH'09
Country/Territory	Canada
City	Toronto, ON
Period	9/26/09 → 9/27/09

Keywords

Cancer
Contact surface
FEM
Image registration
Liver
Radiotherapy

ASJC Scopus subject areas

Computational Theory and Mathematics
Biomedical Engineering
Electrical and Electronic Engineering
Human Factors and Ergonomics

Access to Document

10.1109/TIC-STH.2009.5444517

Cite this

Al-Mayah, A., Moseley, J., Velec, M., & Brock, K. (2009). Deformable modeling of human liver with contact surface. In TIC-STH'09: 2009 IEEE Toronto International Conference - Science and Technology for Humanity (pp. 137-140). Article 5444517 (TIC-STH'09: 2009 IEEE Toronto International Conference - Science and Technology for Humanity). https://doi.org/10.1109/TIC-STH.2009.5444517

Deformable modeling of human liver with contact surface. / Al-Mayah, Adil; Moseley, Joanne; Velec, Mike et al.
TIC-STH'09: 2009 IEEE Toronto International Conference - Science and Technology for Humanity. 2009. p. 137-140 5444517 (TIC-STH'09: 2009 IEEE Toronto International Conference - Science and Technology for Humanity).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Al-Mayah, A, Moseley, J, Velec, M & Brock, K 2009, Deformable modeling of human liver with contact surface. in TIC-STH'09: 2009 IEEE Toronto International Conference - Science and Technology for Humanity., 5444517, TIC-STH'09: 2009 IEEE Toronto International Conference - Science and Technology for Humanity, pp. 137-140, 2009 IEEE Toronto International Conference - Science and Technology for Humanity, TIC-STH'09, Toronto, ON, Canada, 9/26/09. https://doi.org/10.1109/TIC-STH.2009.5444517

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title = "Deformable modeling of human liver with contact surface",

abstract = "Patient specific 3D finite element models have been developed using 4DCT (3D+time) image data for 5 liver cancer patients. Each model consists of the liver, tumors, left and right kidneys, stomach, spleen and body. Breathing motion of the liver, spleen and body is found and applied as displacement boundary conditions in the model. Sliding of the liver relative to the surrounding tissues is modeled using frictionless contact surfaces. Landmarks representing vessels bifurcation inside the liver are used for the model accuracy test. The goal of the study is to examine the effect of contact surface model on the performance of the deformable image registration of the liver. The accuracy of the model is improved by applying contact surface. Substantial displacement differences are observed between models with and without contact surface of the liver. The largest difference is in the Superior-Inferior (SI) followed by Anterior-Posterior (AP).",

keywords = "Cancer, Contact surface, FEM, Image registration, Liver, Radiotherapy",

author = "Adil Al-Mayah and Joanne Moseley and Mike Velec and Kristy Brock",

note = "Copyright: Copyright 2010 Elsevier B.V., All rights reserved.; 2009 IEEE Toronto International Conference - Science and Technology for Humanity, TIC-STH'09 ; Conference date: 26-09-2009 Through 27-09-2009",

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AU - Al-Mayah, Adil

AU - Moseley, Joanne

AU - Velec, Mike

AU - Brock, Kristy

PY - 2009

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N2 - Patient specific 3D finite element models have been developed using 4DCT (3D+time) image data for 5 liver cancer patients. Each model consists of the liver, tumors, left and right kidneys, stomach, spleen and body. Breathing motion of the liver, spleen and body is found and applied as displacement boundary conditions in the model. Sliding of the liver relative to the surrounding tissues is modeled using frictionless contact surfaces. Landmarks representing vessels bifurcation inside the liver are used for the model accuracy test. The goal of the study is to examine the effect of contact surface model on the performance of the deformable image registration of the liver. The accuracy of the model is improved by applying contact surface. Substantial displacement differences are observed between models with and without contact surface of the liver. The largest difference is in the Superior-Inferior (SI) followed by Anterior-Posterior (AP).

AB - Patient specific 3D finite element models have been developed using 4DCT (3D+time) image data for 5 liver cancer patients. Each model consists of the liver, tumors, left and right kidneys, stomach, spleen and body. Breathing motion of the liver, spleen and body is found and applied as displacement boundary conditions in the model. Sliding of the liver relative to the surrounding tissues is modeled using frictionless contact surfaces. Landmarks representing vessels bifurcation inside the liver are used for the model accuracy test. The goal of the study is to examine the effect of contact surface model on the performance of the deformable image registration of the liver. The accuracy of the model is improved by applying contact surface. Substantial displacement differences are observed between models with and without contact surface of the liver. The largest difference is in the Superior-Inferior (SI) followed by Anterior-Posterior (AP).

KW - Cancer

KW - Contact surface

KW - FEM

KW - Image registration

KW - Liver

KW - Radiotherapy

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ER -

Deformable modeling of human liver with contact surface

Abstract

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Keywords

ASJC Scopus subject areas

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