On enhancing planning and navigation of beating-heart mitral valve surgery using pre-operative cardiac models.
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.
Linte
Cristian A
CA
Imaging Research Laboratories, Robarts Research Institute, London, Ontario, Canada.
Wierzbicki
Marcin
M
Moore
John
J
Guiraudon
Gérard
G
Jones
Douglas L
DL
Peters
Terry M
TM
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