title: On enhancing planning and navigation of beating-heart mitral valve surgery using pre-operative cardiac models.
abstract: In an effort to reduce morbidity during minimally-invasive cardiac procedures, we have recently developed an interventional technique targeted towards off-pump cardiac interventions. To compensate for the absence of direct visualization, our system employs a virtual reality environment for image guidance, that integrates pre-operative information with real-time intra-operative imaging and surgical tool tracking. This work focuses on enhancing intracardiac visualization and navigation by overlaying pre-operative cardiac models onto the intra-operative virtual space, to display surgical targets within their specific anatomical context. Our method for integrating pre-operative data into the intra-operative environment is accurate within 5.0 mm. Thus, we feel that our virtually-augmented surgical space is accurate enough to improve spatial orientation and intracardiac navigation.
authors.affiliation: Imaging Research Laboratories, Robarts Research Institute, London, Ontario, Canada.
authors.forename: Cristian A
authors.initials: CA
authors.lastname: Linte
authors.forename: Marcin
authors.initials: M
authors.lastname: Wierzbicki
authors.forename: John
authors.initials: J
authors.lastname: Moore
authors.forename: Gérard
authors.initials: G
authors.lastname: Guiraudon
authors.forename: Douglas L
authors.initials: DL
authors.lastname: Jones
authors.forename: Terry M
authors.initials: TM
authors.lastname: Peters
mesh_terms: D006348:Cardiac Surgical Procedures; D006801:Humans; D021621:Imaging, Three-Dimensional; D008279:Magnetic Resonance Imaging; D008943:Mitral Valve / Q000601:surgery; D008954:Models, Biological; D016343:Monitoring, Intraoperative; D011300:Preoperative Care