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Proceedings Paper

A device for real-time measurement of catheter-motion and input to a catheter navigation system
Author(s): Yogesh Thakur; Jason H. Cakiroglu; David W. Holdsworth; Maria Drangova
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Paper Abstract

Technological development of devices used in image-guided surgery and therapy has progressed due to the potential advantages such technology can bring to procedure efficacy and safety. This paper describes the technical design of a real-time catheter-motion sensor for use in investigating applied motion in catheter-based interventions and for use as an input device for a remote catheter navigation system. The device is comprised of three stages: the first two are passive stages used to measure axial and radial motion of the catheter and the third stage is an active brake used to impede motion. As a catheter is moved through the device, axial and radial measurement is achieved by mechanically coupling two optical encoders to the catheter. An electronic 24-bit counter and micro-controller are used to record incremental motion of the catheter. A computer loaded with a custom Python driver initializes and controls the micro-controller through a RS-232 port. The use of real clinical catheters with this device will allow the device to be used as an input to an image-guided remote catheter navigation system. User feedback may be achieved by linking a sensor in the slave device of a remote catheter navigation system, with the feedback system of the device.

Paper Details

Date Published: 21 March 2007
PDF: 8 pages
Proc. SPIE 6509, Medical Imaging 2007: Visualization and Image-Guided Procedures, 65090G (21 March 2007); doi: 10.1117/12.709556
Show Author Affiliations
Yogesh Thakur, The Univ. of Western Ontario (Canada)
Robarts Research Institute (Canada)
Jason H. Cakiroglu, The Univ. of Western Ontario (Canada)
Robarts Research Institute (Canada)
David W. Holdsworth, The Univ. of Western Ontario (Canada)
Robarts Research Institute (Canada)
Maria Drangova, The Univ. of Western Ontario (Canada)
Robarts Research Institute (Canada)


Published in SPIE Proceedings Vol. 6509:
Medical Imaging 2007: Visualization and Image-Guided Procedures
Kevin R. Cleary; Michael I. Miga, Editor(s)

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