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[Stereolithographic model construction based on 3-dimensional reconstructed CT sectional image sequences].

H M Klein·W Schneider·J Nawrath·T Gernot·E D Voy·R Krasny
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Abstract

Techniques for 3D reconstruction of medical objects and production of models by CAM have been markedly improved. Milling tools have limited abilities to reproduce complex anatomical structures. Even if 5-axis milling systems are used, the problem of collisions between tool and object is not yet under control. An alternative is offered here by stereolithography. We performed a computed tomography (Somatom DRH, Siemens/Erlangen) of a child with extensive maxillary bone defect after surgical treatment of a congenital tumour. The bone defect was covered by an alloplastic implant. 3D reconstructions were performed by the aid of a conventional personal computer. Generated 3D volume data sets were transferred to a stereolithography system (3D Systems GmbH, Darmstadt/FRG). The produced model revealed high accuracy of the anatomical structures. Intraoperatively, the alloplastic prosthesis was removed and the shape of the new implant could be designed using the stereolithographic model.

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ChildComputer SimulationHumansImage Processing, Computer-AssistedMaleMaxillofacial ProsthesisMicrocomputersModels, StructuralProsthesis DesignTomography, X-Ray ComputedCase ReportsEnglish AbstractJournal Article

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H M Klein, W Schneider, J Nawrath, T Gernot, E D Voy, R Krasny. 1992. [Stereolithographic model construction based on 3-dimensional reconstructed CT sectional image sequences].. https://doi.org/10.1055/s-2008-1032915

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