title: 2D ultrasound augmented by virtual tools for guidance of interventional procedures.
abstract: Many intracardiac procedures can currently be performed on the heart only after it has been arrested, and the patient has been placed on cardio-pulmonary bypass. We have developed a new method for operating on multiple targets inside the beating heart, and describe a procedure for accessing them under virtual-reality (VR)-assisted image guidance that combines real-time ultrasound with a virtual model of tools, and the surgical environment acquired from pre-operative images. This paper presents preliminary results aimed at assessing the operator's ability to accurately position and staple an artificial valve to a "valve orifice" within a cardiac phantom when guidance is performed via ultrasound alone, and with US augmented by the VR environment.
authors: Robarts Research Institute, London, Ontario, Canada. jmoore@imaging.robarts.ca
authors: John
authors: J
authors: Moore
authors: Gerard
authors: G
authors: Guiraudon
authors: Doug
authors: D
authors: Jones
authors: Nick
authors: N
authors: Hill
authors: Andrew
authors: A
authors: Wiles
authors: Dan
authors: D
authors: Bainbridge
authors: Chris
authors: C
authors: Wedlake
authors: Terry
authors: T
authors: Peters
mesh_terms: D004452:Echocardiography; D006350:Heart Valve Prosthesis; D006801:Humans; D007091:Image Processing, Computer-Assisted; D009864:Ontario; D025321:Surgery, Computer-Assisted; D013903:Thoracic Surgery