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Intraoperative cone-beam CT for head and neck surgery: feasibility of clinical implementation using a prototype
Emma King1, Michael J Daly, Harley Chan
1Department of Otolaryngology-Head and Neck Surgery, University of Toronto, Toronto, Ontario, Canada.
Background:
Intraoperative 3-dimensional (3D) imaging in head and neck surgery was developed using a prototype mobile C-arm for cone-beam CT (CBCT). This article summarizes its implementation in a prospective pilot and feasibility study.
Methods:
The CBCT C-arm was used in 12 head and neck surgical oncology cases. Human-factors engineering methods and expert feedback from surgeons, nurses, and anesthetists were used to evaluate the impact of intraoperative imaging on the surgical environment and clinical workflow. Image quality of CBCT and the perceived clinical utility were evaluated.
Results:
The CBCT C-arm was successfully incorporated in 12 head and neck cases and streamlined into the surgical environment. Reviewed 3D-CBCT images were qualitatively sufficient for intraoperative-guidance for bony detail. Additional artifact management is required to improve soft-tissue visualization.
Conclusions:
Intraoperative CBCT provides high-quality images for visualization of bony detail and is feasible during major head and neck surgery with acceptable workflow interruptions. Operations with significant bone ablation and/or reconstruction involving complex 3D anatomical structures are likely to benefit from the updated imaging.
