Direct navigation on 3D rotational x-ray data acquired with a mobile propeller C-arm: accuracy and application in functional endoscopic sinus surgery
| Autor: | Wytske J Fokkens, Bart Carelsen, Wiro J. Niessen, Everine B. van de Kraats, Sjirk N. Boon, Niels Noordhoek, Theo van Walsum |
|---|---|
| Přispěvatelé: | Biomedical Engineering and Physics, Amsterdam institute for Infection and Immunity, Ear, Nose and Throat |
| Jazyk: | angličtina |
| Rok vydání: | 2005 |
| Předmět: |
Radiological and Ultrasound Technology
business.industry Computer science Phantoms Imaging Propeller Navigation system Endoscopy Functional endoscopic sinus surgery Direct navigation Imaging phantom Imaging Three-Dimensional Surgery Computer-Assisted Cadaver X ray data Calibration Image Processing Computer-Assisted Humans Radiology Nuclear Medicine and imaging Computer vision Artificial intelligence business Tomography X-Ray Computed Head Algorithms |
| Zdroj: | Physics in medicine and biology, 50(24), 5769-5781. IOP Publishing Ltd. |
| ISSN: | 0031-9155 |
| Popis: | Recently, three-dimensional (3D) rotational x-ray imaging has been combined with navigation technology, enabling direct 3D navigation for minimally invasive image guided interventions. In this study, phantom experiments are used to determine the accuracy of such a navigation set-up for a mobile C-arm with propeller motion. After calibration of the C-arm system, the accuracy is evaluated by pinpointing divots on a special-purpose phantom with known geometry. This evaluation is performed both with and without C-arm motion in between calibration and registration for navigation. The variation caused by each of the individual transformations in the calibration and registration process is also studied. The feasibility of direct navigation on 3D rotational x-ray images for functional endoscopic sinus surgery has been evaluated in a cadaver navigation experiment. Navigation accuracy was approximately 1.0 mm, which is sufficient for functional endoscopic sinus surgery. C-arm motion in between calibration and registration slightly degraded the registration accuracy by approximately 0.3 mm. Standard deviations of each of the transformations were in the range 0.15-0.31 mm. In the cadaver experiment, the navigation images were considered in good correspondence with the endoscopic images by an experienced ENT surgeon. Availability of 3D localization information provided by the navigation system was considered valuable by the ENT surgeon. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|