The feasibility of surgical site tagging with CT virtual reality of the paranasal sinuses

• Published in: Journal of computer assisted tomography Vol. 23; no. 4; pp. 529 - 533
• Main Authors: HOPPER, K. D, IYRIBOZ, A. T, WISE, S. W, FORNADLEY, J. A
• Format: Journal Article
• Language: English
• Published: Hagerstown, MD Lippincott 01-07-1999
• Subjects: Biological and medical sciences; Data Display; Endoscopy; Feasibility Studies; Head and neck surgery. Maxillofacial surgery. Dental surgery. Orthodontics; Humans; Maxillofacial surgery. Dental surgery. Orthodontics; Medical sciences; Paranasal Sinuses - diagnostic imaging; Paranasal Sinuses - surgery; Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases; Tomography, X-Ray Computed; User-Computer Interface; Human; Endoscopic surgery; Volumetric analysis; Radiodiagnosis; Targeting; Virtual reality; Medical imagery; Paranasal sinus disease; Feasibility; Tridimensional image; Computerized axial tomography; Treatment planning
• ISSN: 0363-8715; 1532-3145
• DOI: 10.1097/00004728-199907000-00007

The purpose of this work was to evaluate the feasibility of tagging (highlighting) surgical sites using volumetric CT virtual reality of the paranasal sinuses in the planning for endoscopic sinus surgery.
Twenty-five patients with significant paranasal sinus disease had a planned surgical site marked on 2D coronal images. This planned surgical site was then tagged and included on CT volumetric virtual reality imaging. Each case was evaluated as to the ability of the CT virtual reality to demonstrate the planned surgical site and its orientation with respect to adjacent superficial anatomy.
For all 25 planned surgeries, the virtual images showed the entire surgical site marked on the 2D coronal images. In all 25 cases, the orientation of the planned surgical site to adjacent normal anatomy was well demonstrated. For surgery into the maxillary sinuses, tagging and electronic removal of the middle turbinates and uncinate processes mimicked the actual surgery and allowed complete visualization of the infundibulum and the planned surgical site.
Planned endoscopic paranasal sinus surgical sites can be easily and reliably highlighted using CT virtual reality techniques with respect to the patient's normal endoscopic anatomy.