 Sensitivity analysis of hip joint centre estimation based on three-dimensional CT scansW. Bartels, J. Vander Sloten and I. Jonkers Computer Methods in Biomechanics and Biomedical Engineering, 2012, vol. 15, issue 5, 539-546 Abstract: In morphological analysis of the femur, the hip joint centre (HJC) is generally determined using a 3D model of the femoral head based on medical images. However, the portion of the image selected to represent the femoral head may influence the HJC. We determined if this influence invalidates the results of three HJC calculation methods, one of which we introduce here.To isolate femoral heads in cadaver CT images, thresholds were applied to the distance between femur and acetabulum models. The sensitivity of the HJC to these thresholds and the differences between methods were quantified.For thresholds between 6 and 9 mm and healthy hips, differences between methods were below 1 mm and all methods were insensitive to threshold changes. For higher thresholds, the fovea capitis femoris disturbed the HJC. In two deformed hips, the new method performed superiorly. We conclude that for normal hips all methods produce valid results. Date: 2012 Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:taf:gcmbxx:v:15:y:2012:i:5:p:539-546 Ordering information: This journal article can be ordered from DOI: 10.1080/10255842.2010.548323 Access Statistics for this article Computer Methods in Biomechanics and Biomedical Engineering is currently edited by Director of Biomaterials John Middleton More articles in Computer Methods in Biomechanics and Biomedical Engineering from Taylor & Francis Journals |
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