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Integration of patient-specific paranasal sinus computed tomographic data into a virtual surgical environment
Authors: Parikh, Sachin S.; Chan, Sonny; Agrawal, Sumit K.; Hwang, Peter H.; Salisbury, Curt M.; Rafii, Benjamin Y.; Varma, Gaurav; Salisbury, Kenneth J.; Blevins, Nikolas H.
Source: American Journal of Rhinology & Allergy, Volume 23, Number 4, July/August 2009 , pp. 442-447(6)
Publisher: OceanSide Publications, Inc
Abstract:
Background: The advent of both high-resolution computed tomographic (CT) imaging and minimally invasive endoscopic techniques has led to revolutionary advances in sinus surgery. However, the rhinologist is left to make the conceptual jump between static cross-sectional images and the anatomy encountered intraoperatively. A three-dimensional (3D) visuo-haptic representation of the patient's anatomy may allow for enhanced preoperative planning and rehearsal, with the goal of improving outcomes, decreasing complications, and enhancing technical skills. Methods: We developed a novel method of automatically constructing 3D visuo-haptic models of patients' anatomy from preoperative CT scans for placement in a virtual surgical environment (VSE). State-of-the-art techniques were used to create a high-fidelity representation of salient bone and soft tissue anatomy and to enable manipulation of the virtual patient in a surgically meaningful manner. A modified haptic interface device drives a virtual endoscope that mimics the surgical configuration. Results: The creation and manipulation of sinus anatomy from CT data appeared to provide a relevant means of exploring patient-specific anatomy. Unlike more traditional methods of interacting with multiplanar imaging data, our VSE provides the potential for a more intuitive experience that can replicate the views and access expected at surgery. The inclusion of tactile (haptic) feedback provides an additional dimension of realism. Conclusion: The incorporation of patient-specific clinical CT data into a virtual surgical environment holds the potential to offer the surgeon a novel means to prepare for rhinologic procedures and offer training to residents. An automated pathway for segmentation, reconstruction, and an intuitive interface for manipulation may enable rehearsal of planned procedures.Keywords: Endoscopic sinus surgery; haptics; high fidelity simulation; patient specific three-dimensional reconstruction; surgical simulation; training; virtual nasal endoscopy; virtual surgical environment
Document Type: Research article
DOI: http://dx.doi.org/10.2500/ajra.2009.23.3335
Affiliations: 1: Department of Otolaryngology-Head and Neck Surgery, Stanford University, Stanford, California
Publication date: 2009-07-01
- The American Journal of Rhinology & Allergy, is a peer reviewed, scientific publication committed to expanding knowledge and publishing the best clinical and basic research within the fields of Rhinology & Allergy. Its focus is to publish information which contributes to improved quality of care for patients with nasal and sinus disorders. Its primary readership consists of otolaryngologists, allergists, and plastic surgeons. Published material includes peer-reviewed original research, clinical trials and review articles.
Previously published as American Journal of Rhinology, the journal is indexed in Thomson Reuters Web of Science and Science Citation Index, plus the National Library of Medicine's PubMed service. - Editorial Board
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- In this Subject: Allergy & Immunology , Ear, Nose & Throat
- By this author: Parikh, Sachin S. ; Chan, Sonny ; Agrawal, Sumit K. ; Hwang, Peter H. ; Salisbury, Curt M. ; Rafii, Benjamin Y. ; Varma, Gaurav ; Salisbury, Kenneth J. ; Blevins, Nikolas H.
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