2 results match your criteria: "and the London Health Science Center[Affiliation]"
Augmented reality image guidance during off-pump mitral valve replacement through the guiraudon universal cardiac introducer.
Innovations (Phila)
November 2010
From the *Canadian Surgical Technologies and Advance Robotics, Lawson Health Research Institute, London, ON Canada; †Imaging Group, Robarts Research Institute, London, ON Canada; and Departments of ‡Physiology & Pharmacology, §Medicine, ¶Anaesthesia, and ∥Medical Biophysics, the University of Western Ontario, and the London Health Science Center, London, ON Canada.
Objective: : We report our experience with ultrasound augmented reality (US-AR) guidance for mitral valve prosthesis (MVP) implantation in the pig using off-pump, closed, beating intracardiac access through the Guiraudon Universal Cardiac Introducer attached to the left atrial appendage.
Methods: : Before testing US-AR guidance, a feasibility pilot study on nine pigs was performed using US alone. US-AR guidance, tested on a heart phantom, was subsequently used in three pigs (∼65 kg) using a tracked transesophageal echocardiography probe, augmented with registration of a 3D computed tomography scan, and virtual representation of the MVP and clip-delivering tool (Clipper); three pigs were used to test feature-based registration.
Off-pump positioning of a conventional aortic valve prosthesis through the left ventricular apex with the universal cardiac introducer under sole ultrasound guidance, in the pig.
Innovations (Phila)
September 2009
From the *Canadian Surgical Technologies and Advance Robotics, Lawson Health Research Institute, London, Ontario, Canada; †Imaging Group, Robarts Research Institute, London, Ontario, Canada; and Departments of ‡Physiology and Pharmacology, §Medicine, ¶Anaesthesia, and ∥Medical Biophysics, the University of Western Ontario, and the London Health Science Center, London, Ontario, Canada.
Objective: : To test an alternative to catheter and open-heart techniques, by documenting the feasibility of implanting an unmodified mechanical aortic valve (AoV) in the off pump, beating heart using the universal cardiac introducer (UCI) attached to the left ventricular (LV) apex.
Methods: : In six pigs, the LV apex was exposed by a median sternotomy. The UCI was attached to the apex.