title: Image-guided endoscopic surgery: results of accuracy and performance in a multicenter clinical study using an electromagnetic tracking system.
abstract: Image-guided surgery has recently been described in the literature as a useful technology for improved functional endoscopic sinus surgery localization. Image-guided surgery yields accurate knowledge of the surgical field boundaries, allowing safer and more thorough sinus surgery. We have previously reviewed our initial experience with The InstaTrak System. This article presents a multicenter clinical study (n=55) that assesses the system's capability for localizing structures in critical surgical sites. The purpose of this paper is to present quantitative data on accuracy and performance. We describe several new advances including an automated registration technique that eliminates the redundant computed tomography scan, compensation for head movement, and the ability to use interchangeable instruments.
authors.affiliation: Department of Otology and Laryngology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, Massachusetts, U.S.A.
authors.forename: M P
authors.initials: MP
authors.lastname: Fried
authors.forename: J
authors.initials: J
authors.lastname: Kleefield
authors.forename: H
authors.initials: H
authors.lastname: Gopal
authors.forename: E
authors.initials: E
authors.lastname: Reardon
authors.forename: B T
authors.initials: BT
authors.lastname: Ho
authors.forename: F A
authors.initials: FA
authors.lastname: Kuhn
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000402:Airway Obstruction / Q000209:etiology; D002908:Chronic Disease; D055590:Electromagnetic Phenomena; D004724:Endoscopy / Q000379:methods*; D004867:Equipment Design; D015521:Ethmoid Sinusitis / Q000000981:diagnostic imaging / Q000601:surgery*; D005260:Female; D015522:Frontal Sinusitis / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D007432:Intraoperative Period; D008297:Male; D008443:Maxillary Sinus / Q000000981:diagnostic imaging / Q000601:surgery; D008875:Middle Aged; D011300:Preoperative Care; D012086:Reoperation; D014057:Tomography, X-Ray Computed