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3D surface accuracy of CAD generated skull defect contour

Winder, John, McKnight, Wesley, McRitchie, I, Montogomery, D and Wulf, J (2006) 3D surface accuracy of CAD generated skull defect contour. In: Medicine Meets Virtual Reality 14, Los Angeles. IOS Press. Vol 119 3 pp. [Conference contribution]

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Abstract

The creation of a satisfactory cosmetic outcome in the repair of cranial defects relies on manual skill. However, computer aided design is gaining acceptance in the creation of custom cranial implants. The purpose of this work is to demonstrate the accuracy of a CAD generated skull defect contours. 3D multi-slice CT scanning was carried out on a life size plastic skull. Surface models were generated of the original skull and of temporofrontal and parietal defects. Surface contours were interpolated towards the centre of the defect from the edges where it was blended. The CAD contour deviation ranged from 0.0 mm to 2.0 mm with 80% of the total defect area less than 0.66 mm as measured by difference maps. CAD techniques can be used to produce contours for the repair of cranial defects with minimum deviation from the original skull contour. This enables accurate design and production of cranial implants.

Item Type:Conference contribution (Paper)
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Engineering
Faculty of Life and Health Sciences
Faculty of Life and Health Sciences > School of Health Sciences
Research Institutes and Groups:Institute of Nursing and Health Research > Centre for Health and Rehabilitation Technologies
Institute of Nursing and Health Research
ID Code:28917
Deposited By: Dr John Winder
Deposited On:25 Mar 2014 11:02
Last Modified:25 Mar 2014 11:02

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