Development and validation of a viscoelastic and nonlinear liver model for needle insertion

Yo Kobayashi, Akinori Onishi, Takeharu Hoshi, Kazuya Kawamura, Makoto Hashizume, Masakatsu G. Fujie

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Objective: The objective of our work is to develop and validate a viscoelastic and nonlinear physical liver model for organ model-based needle insertion, in which the deformation of an organ is estimated and predicted, and the needle path is determined with organ deformation taken into consideration. Materials and Methods: First, an overview is given of the development of the physical liver model. The material properties of the liver considering viscoelasticity and nonlinearity are modeled based on the measured data collected from a pig's liver. The method to develop the liver model using FEM is also shown. Second, the experimental method to validate the model is explained. Both in vitro and in vivo experiments that made use of a pig's liver were conducted for comparison with the simulation using the model. Results: Results of the in vitro experiment showed that the model reproduces nonlinear and viscoelastic response of displacement at an internally located point with high accuracy. For a force up to 0.45 N, the maximum error is below 1 mm. Results of the in vivo experiment showed that the model reproduces the nonlinear increase of load upon the needle during insertion. Discussion: Based on these results, the liver model developed and validated in this work reproduces the physical response of a liver in both in vitro and in vivo situations.

Original languageEnglish
Pages (from-to)53-63
Number of pages11
JournalInternational journal of computer assisted radiology and surgery
Volume4
Issue number1
DOIs
Publication statusPublished - 2009

Fingerprint

Nonlinear Dynamics
Liver
Needles
Swine
Experiments
Viscoelasticity
Materials properties
Finite element method

Keywords

  • Computer simulation
  • Liver
  • Needle insertion
  • Physical model
  • Viscoelastic and nonlinear

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Health Informatics
  • Surgery

Cite this

Development and validation of a viscoelastic and nonlinear liver model for needle insertion. / Kobayashi, Yo; Onishi, Akinori; Hoshi, Takeharu; Kawamura, Kazuya; Hashizume, Makoto; Fujie, Masakatsu G.

In: International journal of computer assisted radiology and surgery, Vol. 4, No. 1, 2009, p. 53-63.

Research output: Contribution to journalArticle

Kobayashi, Yo ; Onishi, Akinori ; Hoshi, Takeharu ; Kawamura, Kazuya ; Hashizume, Makoto ; Fujie, Masakatsu G. / Development and validation of a viscoelastic and nonlinear liver model for needle insertion. In: International journal of computer assisted radiology and surgery. 2009 ; Vol. 4, No. 1. pp. 53-63.
@article{67269c5f36ed4ba5bfb2b3ef1e0507a4,
title = "Development and validation of a viscoelastic and nonlinear liver model for needle insertion",
abstract = "Objective: The objective of our work is to develop and validate a viscoelastic and nonlinear physical liver model for organ model-based needle insertion, in which the deformation of an organ is estimated and predicted, and the needle path is determined with organ deformation taken into consideration. Materials and Methods: First, an overview is given of the development of the physical liver model. The material properties of the liver considering viscoelasticity and nonlinearity are modeled based on the measured data collected from a pig's liver. The method to develop the liver model using FEM is also shown. Second, the experimental method to validate the model is explained. Both in vitro and in vivo experiments that made use of a pig's liver were conducted for comparison with the simulation using the model. Results: Results of the in vitro experiment showed that the model reproduces nonlinear and viscoelastic response of displacement at an internally located point with high accuracy. For a force up to 0.45 N, the maximum error is below 1 mm. Results of the in vivo experiment showed that the model reproduces the nonlinear increase of load upon the needle during insertion. Discussion: Based on these results, the liver model developed and validated in this work reproduces the physical response of a liver in both in vitro and in vivo situations.",
keywords = "Computer simulation, Liver, Needle insertion, Physical model, Viscoelastic and nonlinear",
author = "Yo Kobayashi and Akinori Onishi and Takeharu Hoshi and Kazuya Kawamura and Makoto Hashizume and Fujie, {Masakatsu G.}",
year = "2009",
doi = "10.1007/s11548-008-0259-9",
language = "English",
volume = "4",
pages = "53--63",
journal = "Computer-Assisted Radiology and Surgery",
issn = "1861-6410",
publisher = "Springer Verlag",
number = "1",

}

TY - JOUR

T1 - Development and validation of a viscoelastic and nonlinear liver model for needle insertion

AU - Kobayashi, Yo

AU - Onishi, Akinori

AU - Hoshi, Takeharu

AU - Kawamura, Kazuya

AU - Hashizume, Makoto

AU - Fujie, Masakatsu G.

PY - 2009

Y1 - 2009

N2 - Objective: The objective of our work is to develop and validate a viscoelastic and nonlinear physical liver model for organ model-based needle insertion, in which the deformation of an organ is estimated and predicted, and the needle path is determined with organ deformation taken into consideration. Materials and Methods: First, an overview is given of the development of the physical liver model. The material properties of the liver considering viscoelasticity and nonlinearity are modeled based on the measured data collected from a pig's liver. The method to develop the liver model using FEM is also shown. Second, the experimental method to validate the model is explained. Both in vitro and in vivo experiments that made use of a pig's liver were conducted for comparison with the simulation using the model. Results: Results of the in vitro experiment showed that the model reproduces nonlinear and viscoelastic response of displacement at an internally located point with high accuracy. For a force up to 0.45 N, the maximum error is below 1 mm. Results of the in vivo experiment showed that the model reproduces the nonlinear increase of load upon the needle during insertion. Discussion: Based on these results, the liver model developed and validated in this work reproduces the physical response of a liver in both in vitro and in vivo situations.

AB - Objective: The objective of our work is to develop and validate a viscoelastic and nonlinear physical liver model for organ model-based needle insertion, in which the deformation of an organ is estimated and predicted, and the needle path is determined with organ deformation taken into consideration. Materials and Methods: First, an overview is given of the development of the physical liver model. The material properties of the liver considering viscoelasticity and nonlinearity are modeled based on the measured data collected from a pig's liver. The method to develop the liver model using FEM is also shown. Second, the experimental method to validate the model is explained. Both in vitro and in vivo experiments that made use of a pig's liver were conducted for comparison with the simulation using the model. Results: Results of the in vitro experiment showed that the model reproduces nonlinear and viscoelastic response of displacement at an internally located point with high accuracy. For a force up to 0.45 N, the maximum error is below 1 mm. Results of the in vivo experiment showed that the model reproduces the nonlinear increase of load upon the needle during insertion. Discussion: Based on these results, the liver model developed and validated in this work reproduces the physical response of a liver in both in vitro and in vivo situations.

KW - Computer simulation

KW - Liver

KW - Needle insertion

KW - Physical model

KW - Viscoelastic and nonlinear

UR - http://www.scopus.com/inward/record.url?scp=63149131505&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=63149131505&partnerID=8YFLogxK

U2 - 10.1007/s11548-008-0259-9

DO - 10.1007/s11548-008-0259-9

M3 - Article

C2 - 20033602

AN - SCOPUS:63149131505

VL - 4

SP - 53

EP - 63

JO - Computer-Assisted Radiology and Surgery

JF - Computer-Assisted Radiology and Surgery

SN - 1861-6410

IS - 1

ER -