Intraoperative augmented reality fiber tractography complements cortical and subcortical mapping

Chidambaram, Swathi; Anthony, Diana; Jansen, Tatiana; Vigo, Vera; Miranda, Juan Carlos Fernandez

doi:10.1016/j.wnsx.2023.100226

Cited by 2 publications

References 27 publications

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Immersive Photorealistic Three-Dimensional Neurosurgical Anatomy of the Cerebral Arteries: A Photogrammetry-Based Anatomic Study

Spiriev,

Körner,

Steuwe

et al. 2024

Operative Neurosurgery

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BACKGROUND AND OBJECTIVES: Neurosurgeons need a profound knowledge of the surgical anatomy of the cerebral arteries to safely treat patients. This is a challenge because of numerous branches, segments, and tortuosity of the main blood vessels that supply the brain. The objective of this study was to create high-quality three-dimensional (3D) anatomic photorealistic models based on dissections of the brain arterial anatomy and to incorporate this data into a virtual reality (VR) environment. METHODS: Two formaldehyde-fixed heads were used. The vessels were injected with radiopaque material and colored silicone and latex. Before the dissections, the specimens were computed tomography scanned. Stratigraphical anatomic dissection of the neck and brain was performed to present the relevant vascular anatomy. A simplified surface scanning method using a mobile phone-based photogrammetry application was used, and the data were incorporated into a VR 3D modeling software for post-processing and presentation. RESULTS: Fifteen detailed layered photorealistic and two computed tomography angiography-based 3D models were generated. The models allow manipulation in VR environment with sufficient photographic detail to present the structures of interest. Topographical relevant anatomic structures and landmarks were annotated and uploaded for web-viewing and in VR. Despite that the VR application is a dedicated 3D modeling platform, it provided all necessary tools to be suitable for self-VR study and multiplayer scenarios with several participants in one immersive environment. CONCLUSION: Cerebral vascular anatomy presented with photogrammetry surface scanning method allows sufficient detail to present individual vessel's course and even small perforating arteries in photorealistic 3D models. These features, including VR visualization, provide new teaching prospects. The whole study was done with simplified algorithms and free or open-source software platforms allowing creation of 3D databases especially useful in cases with limited body donor-based dissection training availability.

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Immersive Photorealistic Three-Dimensional Neurosurgical Anatomy of the Cerebral Arteries: A Photogrammetry-Based Anatomic Study

Spiriev,

Körner,

Steuwe

et al. 2024

Operative Neurosurgery

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Augmented Reality Intraoperative Tractography for diffuse glioma microsurgical resection

Konovalov,

Bykanov,

Okishev

et al. 2024

Preprint

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This study explores the use of augmented reality (AR) for intraoperative guidance during the microsurgical resection of diffuse gliomas, especially those located near the critical corticospinal tract. AR provides surgeons with a three-dimensional view of essential brain structures in real time, overcoming the limitations of traditional navigation systems and potentially improving surgical precision. In our case series involving five patients, we combined AR-based visualization with neurophysiological monitoring, allowing precise mapping of the corticospinal tract relative to the tumor. This approach contributed to complete tumor removal in most cases, while also preserving motor function in all patients. Our findings suggest that AR technology can enhance spatial understanding during complex surgeries, minimizing the risk to critical neural pathways. While our initial results are promising, demonstrating reliable alignment accuracy and improved outcomes, further studies on larger patient groups are necessary to fully understand and validate AR’s role in neurosurgery. This research underscores AR’s potential to improve both safety and outcomes, adding valuable tools for intraoperative navigation.

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Intraoperative augmented reality fiber tractography complements cortical and subcortical mapping

Cited by 2 publications

References 27 publications

Immersive Photorealistic Three-Dimensional Neurosurgical Anatomy of the Cerebral Arteries: A Photogrammetry-Based Anatomic Study

Immersive Photorealistic Three-Dimensional Neurosurgical Anatomy of the Cerebral Arteries: A Photogrammetry-Based Anatomic Study

Augmented Reality Intraoperative Tractography for diffuse glioma microsurgical resection

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