Biomedical Paper Volume Cutting for Virtual Petrous Bone Surgery
نویسندگان
چکیده
Objectives: A profound knowledge of anatomy and surgical landmarks of the temporal bone is a basic necessity for any otologic surgeon. Since this knowledge, so far, is mostly taught by limited temporal bone drilling courses, our objective was to create a system for virtual petrous bone surgery, which allows the realistic simulation of specific laterobasal surgical approaches. A major requirement was the development of an interactive drill-like tool together with a new technique for realistic visualization of simulated cut surfaces. Methods: The system is based on a volumetric, high-resolution model of the temporal bone, derived from CT. Interactive volume cutting methods using a new multi-volume scheme have been developed. In this scheme, cut regions are modelled independently in additional data volumes using voxelization techniques. The voxelization is adapted to successive cutting operations, as needed for the simulation of a drill-like tool. A new visualization technique, for the artifact-free rendering of sharp edges, as formed by intersections of a cut and an object surface, was developed. Results: The new multi-volume visualization technique allows the highquality visualization of interactively generated cut surfaces. This is a necessity for a realistic simulation of petrous bone surgery. Therefore, our system facilitates the comprehension of the complex morphology and enables the recognition of surgical landmarks, which is most important to avoid injury of delicate organs (e.g. facial nerve, auditory ossicles). Conclusion: The system for the virtual petrous bone surgery allows the simulation of specific surgical approaches with high quality visualization. The user can learn about the complex three-dimensional anatomy of the temporal bone from the viewpoint of a real otosurgical procedure.
منابع مشابه
Realistic haptic volume interaction for petrous bone surgery simulation
In this paper, a new approach for haptic volume interaction with high resolution voxelbased anatomic models is presented. The haptic rendering is based on a multi-point collision detection approach which provides realistic tool interaction with the models. Both haptics and graphics are rendered at sub-voxel resolution, which leads to a high level of detail and enables the exploration of the mod...
متن کاملDeveloping a virtual reality environment in petrous bone surgery: a state-of-the-art review.
متن کامل
Volume Cutting to Simulate Transurethral Resection of the Prostate
Simulating cutting processes of human tissue is an important feature in virtual reality systems for medical training and rehearsal. In this paper we present a method to simulate the cutting operation in voxel-based virtual reality objects intended to simulate volume cutting in transurethral resection of the prostate. The method allows the user to directly interact with the three dimensional mod...
متن کاملAn integrated simulator for surgery of the petrous bone.
This paper describes work being undertaken as part of the IERAPSI (Integrated Environment for the Rehearsal and Panning of Surgical Intervention) project. The project is focussing on surgery for the petrous bone, and brings together a consortium of European clinicians and technology providers working in this field. The paper presents the results of a comprehensive user task analysis that has be...
متن کاملIntraosseous Schwannoma of the Petrous Apex
Background and Importance Intraosseous schwannoma is a relatively rare clinical entity that typically arises in vertebral and mandibular bone. Intraosseous schwannoma located entirely within the petrous bone is exceedingly rare, and only two cases have been reported to date. Clinical Presentation A 47-year-old Asian man was referred to our hospital with a chief complaint of double vision. Neuro...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2002