Abstract
Obstetric forceps are commonly used when the expulsion of the baby during childbirth fails to progress. When the two forceps blades are applied correctly, i.e. symmetrically, the inner surface of each blade maximises the area in contact with the fetal head. On the contrary, when the blades are applied asymmetrically, the contact areas between the inner surface of the blades and the fetal head are minimal and at distinct locations at the left and right sides of the fetal head. It is therefore assumed in the field of obstetrics that asymmetric application is bound to cause intra-cranial damage due to significantly higher shear forces and significant deformation of the fetal cranial bones as compared to symmetric application. In this paper we present the first of a series of studies to analyse the mechanical contact between head and forceps under different conditions using finite element analysis. We used high fidelity mesh models of a fetal skull and obstetric forceps. The fetal cranial material properties are known from previous studies. We observed significantly higher deformations and stresses for the asymmetric application of the blades as compared to symmetric placement.
Original language | English |
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Title of host publication | Medical Image Computing and Computer-Assisted Intervention – MICCAI 2014 |
Subtitle of host publication | 17th International Conference, Boston, MA, USA, September 14-18, 2014, Proceedings, Part II |
Editors | Pollina Golland, Nobuhiko Hata, Christian Barillot, Joachim Hornegger, Robert Howe |
Publisher | Springer |
Pages | 57-64 |
Number of pages | 8 |
ISBN (Electronic) | 978-3-319-10470-6 |
ISBN (Print) | 978-3-319-10469-0 |
DOIs | |
Publication status | Published - 2014 |
Event | MICCAI 2014 - MIT, Cambridge, United States Duration: 14 Sept 2014 → 18 Sept 2014 |
Publication series
Name | Lecture Notes in Computer Science |
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Volume | 8674 |
Conference
Conference | MICCAI 2014 |
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Country/Territory | United States |
City | Cambridge |
Period | 14/09/14 → 18/09/14 |
Keywords
- Computer Simulation
- Finite Element Analysis
Profiles
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Rudy Lapeer
- School of Computing Sciences - Associate Professor
- Interactive Graphics and Audio - Member
Person: Research Group Member, Academic, Teaching & Research