@inproceedings{9872cd1209d540e4b8b5b66f14c562a4,
title = "Image fusion on the endoscopic view for endo-nasal skull-base surgery",
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.",
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",
author = "Marco Lai and Caifeng Shan and Drazenko Babic and Robert Homan and Terander, {Adrian Elmi} and Erik Edstrom and Oscar Persson and Gustav Burstrom and {de With}, {Peter H.N.}",
year = "2019",
month = mar,
day = "8",
doi = "10.1117/12.2512734",
language = "English",
series = "Proceedings of SPIE",
publisher = "SPIE",
editor = "Baowei Fei and Linte, {Cristian A.}",
booktitle = "Medical Imaging 2019",
address = "United States",
note = "Medical Imaging 2019: Image-Guided Procedures, Robotic Interventions, and Modeling ; Conference date: 17-02-2019 Through 19-02-2019",
}