Image-based vs. mesh-based statistical appearance models of the human femur: Implications for finite element simulations.

Bonaretti, Serena; Seiler, Christof; Boichon, Christelle; Reyes, Mauricio; Büchler, Philippe (2014). Image-based vs. mesh-based statistical appearance models of the human femur: Implications for finite element simulations. Medical engineering & physics, 36(12), pp. 1626-1635. Elsevier 10.1016/j.medengphy.2014.09.006

[img] Text
Bonaretti et al. - Medical Engineering and Physics - 2014.pdf - Published Version
Restricted to registered users only
Available under License Publisher holds Copyright.

Download (1MB) | Request a copy

Statistical appearance models have recently been introduced in bone mechanics to investigate bone geometry and mechanical properties in population studies. The establishment of accurate anatomical correspondences is a critical aspect for the construction of reliable models. Depending on the representation of a bone as an image or a mesh, correspondences are detected using image registration or mesh morphing. The objective of this study was to compare image-based and mesh-based statistical appearance models of the femur for finite element (FE) simulations. To this aim, (i) we compared correspondence detection methods on bone surface and in bone volume; (ii) we created an image-based and a mesh-based statistical appearance models from 130 images, which we validated using compactness, representation and generalization, and we analyzed the FE results on 50 recreated bones vs. original bones; (iii) we created 1000 new instances, and we compared the quality of the FE meshes. Results showed that the image-based approach was more accurate in volume correspondence detection and quality of FE meshes, whereas the mesh-based approach was more accurate for surface correspondence detection and model compactness. Based on our results, we recommend the use of image-based statistical appearance models for FE simulations of the femur.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Pre-clinic Human Medicine > Institute for Surgical Technology & Biomechanics ISTB

UniBE Contributor:

Bonaretti, Serena; Seiler, Christof; Reyes, Mauricio and Büchler, Philippe

Subjects:

500 Science > 570 Life sciences; biology
600 Technology > 610 Medicine & health

ISSN:

1350-4533

Publisher:

Elsevier

Language:

English

Submitter:

Philippe Büchler

Date Deposited:

17 Dec 2014 15:26

Last Modified:

11 Nov 2015 13:52

Publisher DOI:

10.1016/j.medengphy.2014.09.006

PubMed ID:

25271191

Uncontrolled Keywords:

Femur mechanics, finite element simulations, image registration, mesh morphing, statistical appearance model

BORIS DOI:

10.7892/boris.60907

URI:

https://boris.unibe.ch/id/eprint/60907

Actions (login required)

Edit item Edit item
Provide Feedback