The accuracy of active shape modelling and end-plate measurements for characterising the shape of the lumbar spine in the sagittal plane
Ali, Ali H. A.
Gregory, Jennifer S.
Aspden, Richard M.
Meakin, Judith R.
Computer Methods in Biomechanics and Biomedical Engineering
Taylor & Francis
The 2D shape of the lumbar spine in the sagittal plane can be determined from lordosis angles measured between the corresponding end-plates of the vertebral bodies or by using an active shape model (ASM) of the vertebral body outline. The ASM was previously shown to be a more efficient and reliable method, but its accuracy has not been assessed. The aim of this study was to determine the accuracy of an ASM for characterising lumbar spine shape and compare this to conventional measurements. Images of 25 different lumbar spine shapes were generated and measured, using both methods, by three independent observers. The accuracy of the ASM, determined from lordosis angles predicted by the model, was found to be better than conventional measurements.
Copyright © 2012 Taylor & Francis. This is an Author's Accepted Manuscript of an article published in Computer Methods in Biomechanics and Biomedical Engineering (2012), available online at: http://www.tandfonline.com/10.1080/10255842.2010.518962
Vol. 15 (2), pp. 167 - 172
Place of publication