Virtual Labyrinthoscopy: Visualization of the Inner Ear with Interactive Direct Volume Rendering
| Autor: | Peter Hastreiter, Urs Nissen, Walter J. Huk, Christof Rezk-Salama, K. E. W. Eberhardt, Ramin Naraghi, Bernd Tomandl, Holger Greess |
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| Rok vydání: | 2000 |
| Předmět: |
Male
medicine.medical_specialty genetic structures Labyrinth Diseases Mastoid Bony labyrinth User-Computer Interface Image Processing Computer-Assisted medicine Humans Radiology Nuclear Medicine and imaging Segmentation Inner ear Computer vision Interactive visualization business.industry Temporal Bone Industrial computed tomography Volume rendering Exudates and Transudates Middle Aged Semicircular Canals Cochlea Visualization medicine.anatomical_structure Facial canal Ear Inner Data Display Female Vestibule Labyrinth sense organs Artificial intelligence Radiology Tomography X-Ray Computed business Ear Canal |
| Zdroj: | RadioGraphics. 20:547-558 |
| ISSN: | 1527-1323 0271-5333 |
| DOI: | 10.1148/radiographics.20.2.g00mc11547 |
| Popis: | Computed tomography (CT) is the modality of choice for detailed imaging of the bony labyrinth. Usually, information about the complex three-dimensional anatomic structures of the inner ear is presented as two-dimensional section images. Interactive direct volume rendering is a powerful method for visualization of the labyrinth. Unlike other visualization methods, direct volume rendering enables direct visualization of the bony labyrinth without explicit segmentation prior to the visualization process. Direct volume rendering was applied to visualization of the structures of the temporal bone in five patients without pathologic conditions and four patients with pathologic conditions. In all cases, clear representations of the bony labyrinth and the facial canal were provided. Because standard CT examinations combined with interactive visualization based on direct volume rendering are used, the method is fast and flexible. Therefore, this approach is applicable in routine clinical work. Problems occur in patients with effusion in the temporal bone because adjustment of imaging parameters for proper delineation of the target structures is difficult in this situation. However, direct volume rendering can produce meaningful images of high quality even in these problematic cases. The term virtual labyrinthoscopy is suggested for visualization of the labyrinth by using direct volume rendering. |
| Databáze: | OpenAIRE |
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