Abstract
The use of pre-operative CT and MR images for navigation during endo-nasal skull-base endoscopic surgery is a well-established procedure in clinical practice. Fusion of CT and MR images on the endoscopic view can offer an additional advantage by directly overlaying surgical-planning information in the surgical view. Fusion of intraoperative images, such as cone beam computed tomography (CBCT), represents a step forward since these images can also account for intra-operative anatomical changes. In this work, we present a method for intra-operative CBCT image fusion on the endoscopic view for endo-nasal skull-base surgery, implemented on the Philips surgical navigation system. This is the first study which utilizes an optical tracking system (OTS) embedded in the flat-panel detector of the C-arm for endoscopic-image augmentation. In our method the OTS, co-registered in the same CBCT coordinate system, is used for tracking the endoscope. Accuracy in CBCT image registration in the endoscopic view is studied using a calibration board. Image fusion is tested in a realistic surgical scenario by using a skull phantom and inserts that mimic critical structures at the skull base. Overall performances tested on the skull phantom show a high accuracy in tracking the endoscope and registration of CBCT on endoscopic view. It can be concluded that the implemented system show potential for usage in endo-nasal skull-base surgery.
Original language | English |
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Title of host publication | Medical Imaging 2019 |
Subtitle of host publication | Image-Guided Procedures, Robotic Interventions, and Modeling |
Editors | Baowei Fei, Cristian A. Linte |
Place of Publication | Bellingham |
Publisher | SPIE |
Number of pages | 8 |
ISBN (Electronic) | 9781510625495 |
DOIs | |
Publication status | Published - 8 Mar 2019 |
Event | SPIE Medical Imaging 2019 - San Diego, United States Duration: 16 Feb 2019 → 21 Feb 2019 |
Publication series
Name | Proceedings of SPIE |
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Volume | 10951 |
Conference
Conference | SPIE Medical Imaging 2019 |
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Country/Territory | United States |
City | San Diego |
Period | 16/02/19 → 21/02/19 |
Funding
The first author greatfully acknowledges the funding from the European Horizon 2020 research and innovation programme under the Marie Sk lodowska-Curie grant agreement No.: 721766 (FBI).
Keywords
- Augmented reality
- Endoscopic camera
- Image fusion
- Image-guided surgery
- Minimally-invasive neurosurgery
- Skull-base surgery
- Surgical navigation system
- endoscopic camera
- skull-base surgery
- minimally-invasive neurosurgery