Spatial positioning of an hip stem solid model within the CT data set of the host bone

Marco Viceconti, Cinzia Zannoni, Luisa Pierotti, Massimiliano Casali

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

A new protocol is proposed which allows the spatial registration of a prosthetic hip stem solid model with the CT data set of the host bone collected pre-operatively using a limited number of reference landmarks taken from post-operative images. Although based on well know algorithms, such as the Single Value Decomposition, this method opens new possibilities to the three-dimensional modelling of operated bones. In a preliminary experiment based on a synthetic human femur replica the proposed protocol achieved a global accuracy of 1.53 mm (root mean square error of the centre location of ten control sections) using only six CT post-operative slices. This methodology allows an accurate three-dimensional modelling of operated bone which have been implanted with high density metallic devices which produce relevant artefacts in post-operative CT images.

Original languageEnglish
Pages (from-to)219-226
Number of pages8
JournalComputer Methods and Programs in Biomedicine
Volume58
Issue number3
DOIs
Publication statusPublished - Mar 1999

Fingerprint

Hip
Bone
Bone and Bones
Prosthetics
Mean square error
Femur
Artifacts
Decomposition
Equipment and Supplies
Datasets
Experiments

Keywords

  • Computer models
  • CT scan
  • Registration
  • Total hip replacement

ASJC Scopus subject areas

  • Software

Cite this

Spatial positioning of an hip stem solid model within the CT data set of the host bone. / Viceconti, Marco; Zannoni, Cinzia; Pierotti, Luisa; Casali, Massimiliano.

In: Computer Methods and Programs in Biomedicine, Vol. 58, No. 3, 03.1999, p. 219-226.

Research output: Contribution to journalArticle

Viceconti, Marco ; Zannoni, Cinzia ; Pierotti, Luisa ; Casali, Massimiliano. / Spatial positioning of an hip stem solid model within the CT data set of the host bone. In: Computer Methods and Programs in Biomedicine. 1999 ; Vol. 58, No. 3. pp. 219-226.
@article{9b5a0adc1a524c289fadd2be1ce91a42,
title = "Spatial positioning of an hip stem solid model within the CT data set of the host bone",
abstract = "A new protocol is proposed which allows the spatial registration of a prosthetic hip stem solid model with the CT data set of the host bone collected pre-operatively using a limited number of reference landmarks taken from post-operative images. Although based on well know algorithms, such as the Single Value Decomposition, this method opens new possibilities to the three-dimensional modelling of operated bones. In a preliminary experiment based on a synthetic human femur replica the proposed protocol achieved a global accuracy of 1.53 mm (root mean square error of the centre location of ten control sections) using only six CT post-operative slices. This methodology allows an accurate three-dimensional modelling of operated bone which have been implanted with high density metallic devices which produce relevant artefacts in post-operative CT images.",
keywords = "Computer models, CT scan, Registration, Total hip replacement",
author = "Marco Viceconti and Cinzia Zannoni and Luisa Pierotti and Massimiliano Casali",
year = "1999",
month = "3",
doi = "10.1016/S0169-2607(98)00089-3",
language = "English",
volume = "58",
pages = "219--226",
journal = "Computer Methods and Programs in Biomedicine",
issn = "0169-2607",
publisher = "Elsevier Ireland Ltd",
number = "3",

}

TY - JOUR

T1 - Spatial positioning of an hip stem solid model within the CT data set of the host bone

AU - Viceconti, Marco

AU - Zannoni, Cinzia

AU - Pierotti, Luisa

AU - Casali, Massimiliano

PY - 1999/3

Y1 - 1999/3

N2 - A new protocol is proposed which allows the spatial registration of a prosthetic hip stem solid model with the CT data set of the host bone collected pre-operatively using a limited number of reference landmarks taken from post-operative images. Although based on well know algorithms, such as the Single Value Decomposition, this method opens new possibilities to the three-dimensional modelling of operated bones. In a preliminary experiment based on a synthetic human femur replica the proposed protocol achieved a global accuracy of 1.53 mm (root mean square error of the centre location of ten control sections) using only six CT post-operative slices. This methodology allows an accurate three-dimensional modelling of operated bone which have been implanted with high density metallic devices which produce relevant artefacts in post-operative CT images.

AB - A new protocol is proposed which allows the spatial registration of a prosthetic hip stem solid model with the CT data set of the host bone collected pre-operatively using a limited number of reference landmarks taken from post-operative images. Although based on well know algorithms, such as the Single Value Decomposition, this method opens new possibilities to the three-dimensional modelling of operated bones. In a preliminary experiment based on a synthetic human femur replica the proposed protocol achieved a global accuracy of 1.53 mm (root mean square error of the centre location of ten control sections) using only six CT post-operative slices. This methodology allows an accurate three-dimensional modelling of operated bone which have been implanted with high density metallic devices which produce relevant artefacts in post-operative CT images.

KW - Computer models

KW - CT scan

KW - Registration

KW - Total hip replacement

UR - http://www.scopus.com/inward/record.url?scp=0033105150&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033105150&partnerID=8YFLogxK

U2 - 10.1016/S0169-2607(98)00089-3

DO - 10.1016/S0169-2607(98)00089-3

M3 - Article

C2 - 10094226

AN - SCOPUS:0033105150

VL - 58

SP - 219

EP - 226

JO - Computer Methods and Programs in Biomedicine

JF - Computer Methods and Programs in Biomedicine

SN - 0169-2607

IS - 3

ER -