11 June 1985 The Use Of Computerized Tomographic (CT) Scans For 3-D Display And Prosthesis Construction
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Abstract
The construction of preformed cranial prostheses for large cranial bony defects is both error prone and time consuming. We discuss a method used for the creation of cranial prostheses from automatically extracted bone contours taken from Computerized Tomographic (CT) scans. Previous methods of prosthesis construction have relied on the making of a mold directly from the region of cranial defect. The use of image processing, bone contour extraction, and three-dimensional display allowed us to create a better fitting prosthesis while reducing patient surgery time. This procedure involves direct bone margin extraction from the digital CT images followed by head model construction from serial plots of the bone margin. Three-dimensional data display is used to verify the integrity of the skull data set prior to model construction. Once created, the model is used to fabricate a custom fitting prosthesis which is then surgically implanted. This procedure is being used with patients in the Maxillofacial Prosthetic Clinic at UCLA and this paper details the technique.
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Nicholas J. Mankovich, Nicholas J. Mankovich, Tracey J. Woodruff, Tracey J. Woodruff, John Beumer, John Beumer, } "The Use Of Computerized Tomographic (CT) Scans For 3-D Display And Prosthesis Construction", Proc. SPIE 0535, Application of Optical Instrumentation in Medicine XIII, (11 June 1985); doi: 10.1117/12.947274; https://doi.org/10.1117/12.947274
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