Marker-free registration for the accurate integration of CT images and the subject's anatomy during navigation surgery of the maxillary sinus

Abstract

Objective: This study compared three marker-free registration methods that are applicable to a navigation system that can be used for maxillary sinus surgery, and evaluated the associated errors, with the aim of determining which registration method is the most applicable for operations that require accurate navigation. Methods: The CT digital imaging and communications in medicine (DICOM) data of ten maxillary models in DICOM files were converted into stereolithography file format. All of the ten maxillofacial models were scanned three dimensionally using a light-based threedimensional scanner. The methods applied for registration of the maxillofacial models utilized the tooth cusp, bony landmarks and maxillary sinus anterior wall area. The errors during registration were compared between the groups. Results: There were differences between the three registration methods in the zygoma, sinus posterior wall, molar alveolar, premolar alveolar, lateral nasal aperture and the infraorbital areas. The error was smallest using the overlay method for the anterior wall of the maxillary sinus, and the difference was statistically significant. Conclusion: The navigation error can be minimized by conducting registration using the anterior wall of the maxillary sinus during image-guided surgery of the maxillary sinus.

Aplicação De Sistemas De Navegação No Trauma Bucomaxilofacial: Uma Revisão De Literatura / Application of Navigation Systems in Oral and Maxillofacial Trauma: A Literature Review

“…O processo de registro, uma etapa primordial a qual possibilita a sincronização das coordenadas das estruturas anatômicas do paciente com as do exame de imagem na plataforma de navegação, é o maior contribuinte para erros nas cirurgias guiadas por imagem quando manipulado de maneira equivocada (KANG et al, 2012). Recentemente, uma nova modalidade alternativa de registro composta pelo software de reconhecimento facial se mostrou como um método promissor.…”

Three-dimensional CBCT images registration method for TMJ based on reconstructed condyle and skull base

“…Computation time must be taken into account during registration especially in navigation surgery and some treatments required high real-time. 26 High resolution images have a great impact on computation time. In the experiments, using high resolution images will increase the computation time by two to three times.…”

Vision-based markerless registration using stereo vision and an augmented reality surgical navigation system: a pilot study

“…Zhu and colleagues [ 29 ] used an occlusal splint for registration in mandibular angle oblique-split osteotomy with good results; however, the system could not be used in edentulous patients and the markers were limited to the lower half of the face. A study using markerless registration showed variations between three different methods based on anatomic landmarks such as the zygoma, sinus posterior wall, molar alveolar, premolar alveolar, lateral nasal aperture and the infra-orbital areas that were used during navigational surgery of the maxillary sinus [ 30 ]. The results of that study showed that although the use of skin adhesive markers and anatomic landmarks was noninvasive and practical, it had limited accuracy and was restricted to craniofacial surgery.…”