3D surface accuracy of CAD generated skull defect contour

John Winder, Wesley McKnight, I McRitchie, D Montogomery, J Wulf

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Citations (Scopus)


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.
Original languageEnglish
Title of host publicationUnknown Host Publication
EditorsJD Westwood, RS Halcuk, HM Hoffman, GT Mogel, R Philips, RA Robb, KG Vosburgh
Place of PublicationAmsterdam
PublisherIOS Press
Number of pages3
ISBN (Print)1-58603-583-5
Publication statusPublished (in print/issue) - 24 Jan 2006
EventMedicine Meets Virtual Reality 14 - Los Angeles
Duration: 24 Jan 2006 → …


ConferenceMedicine Meets Virtual Reality 14
Period24/01/06 → …


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