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Technologies 2013, 1(3), 44-53;

Wireless Accelerometer for MRI-Guided Interventional Procedures

Unit of Academic Radiology, University of Sheffield, Sheffield S10 2JF, UK
CR-UK and EPSRC Cancer Imaging Centre, Institute of Cancer Research, Royal Marsden NHS Foundation Trust, 15 Cotswold Road, Belmont, Sutton, Surrey SM2 5NG, UK
Specialty Magnetics Limited, Unit-1, 10 Stonefield Way, South Ruislip, Middlesex HA4 0JS, UK
Author to whom correspondence should be addressed.
Received: 6 October 2013 / Revised: 26 November 2013 / Accepted: 2 December 2013 / Published: 10 December 2013
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MRI-guidance is increasingly used for minimally-invasive procedures, such as biopsy, and requires real-time active tracking of surgical instruments. Although optical and MR-based fiducial tracking devices have been used, these systems rely on complex contact with the operator or line-of-sight access for effective operation. A more straight-forward and clinically robust method is required to allow interactive real-time slice positioning of MR scan planes during interventional procedures. This study evaluated the use of a wristwatch-mounted, low cost wireless interface device for real-time MRI guidance. The device was designed to interact with software for planning rather than instrument guidance. The wireless device was integrated with two novel, open interventional magnet systems operating at 0.17T and 0.5T and utilized a novel customized graphic user interface (GUI) to assess interventional capability. View Full-Text
Keywords: interventional MRI; wireless accelerometer; geometry planning; probe navigation interventional MRI; wireless accelerometer; geometry planning; probe navigation

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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Paley, M.N.; Ledger, A.; Leach, M.O.; Cummings, C.; Hughes, R.; Akgun, A. Wireless Accelerometer for MRI-Guided Interventional Procedures. Technologies 2013, 1, 44-53.

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