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Proceedings Paper

Surgical phantom for off-pump mitral valve replacement
Author(s): A. Jonathan McLeod; John Moore; Gerard M. Guiraudon; Doug L. Jones; Gordon Campbell; Terry M. Peters
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Paper Abstract

Off-pump, intracardiac, beating heart surgery has the potential to improve patient outcomes by eliminating the need for cardiopulmonary bypass and aortic cross clamping but it requires extensive image guidance as well as the development of specialized instrumentation. Previously, developments in image guidance and instrumentation were validated on either a static phantom or in vivo through porcine models. This paper describes the design and development of a surgical phantom for simulating off-pump mitral valve replacement inside the closed beating heart. The phantom allows surgical access to the mitral annulus while mimicking the pressure inside the beating heart. An image guidance system using tracked ultrasound, magnetic instrument tracking and preoperative models previously developed for off-pump mitral valve replacement is applied to the phantom. Pressure measurements and ultrasound images confirm the phantom closely mimics conditions inside the beating heart.

Paper Details

Date Published: 1 March 2011
PDF: 7 pages
Proc. SPIE 7964, Medical Imaging 2011: Visualization, Image-Guided Procedures, and Modeling, 796403 (1 March 2011); doi: 10.1117/12.877724
Show Author Affiliations
A. Jonathan McLeod, Robarts Research Institute (Canada)
The Univ. of Western Ontario (Canada)
John Moore, Robarts Research Institute (Canada)
Gerard M. Guiraudon, Robarts Research Institute (Canada)
Lawson Health Research Institute (Canada)
Doug L. Jones, Lawson Health Research Institute (Canada)
The Univ. of Western Ontario (Canada)
Gordon Campbell, Robarts Research Institute (Canada)
National Research Council Canada (Canada)
Terry M. Peters, Robarts Research Institute (Canada)
The Univ. of Western Ontario (Canada)


Published in SPIE Proceedings Vol. 7964:
Medical Imaging 2011: Visualization, Image-Guided Procedures, and Modeling
Kenneth H. Wong; David R. Holmes III, Editor(s)

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