Holographic face models as planning tool in maxillofacial surgery.
The holographic facial profile scan is a new technique for creation of high-resolution, three-dimensional, realistic facial computer models which can be used for surgical planning and documentation in maxillofacial surgery. First, a holographic image of the patient is recorded using a pulsed laser system. In a second step, called holographic tomography, the real image of the patient's hologram is reconstructed by means of a continuous-wave laser. By moving a screen through the real three-dimensional image, it is sliced into a series of two-dimensional projections which are captured with a digital camera. The slices containing the specific two-dimensional information are superimposed to a three-dimensional surface model using special software. The extremely short exposure time of 35 nanoseconds for taking a holographic image is separated from the time-consuming rendering process of the surface model; thus, the obtained models are not affected by the movements of the patient.
Mischkowski
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Klinik und Poliklinik für Zahnärztliche Chirurgie und für Mund-, Kiefer- und Plastische Chirurgie, Klinikum der Universität zu Köln, Köln, Germany. r.mischkowski@uni-koeln.de
Bongartz
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Giel
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Frey
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Thelen
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Hering
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D003198:Computer Simulation; D005145:Face / Q000033:anatomy & histology*; D006696:Holography; D006801:Humans; D007834:Lasers; D008953:Models, Anatomic; D010347:Patient Care Planning; D013515:Surgery, Oral / Q000295:instrumentation*