Real-time magnetic resonance imaging driven by electromagnetic locator for interventional procedure and endoscopic therapy

Surgical Endoscopy
Jaesung HongMakoto Hashizume

Abstract

Surgical navigation systems using an optical position sensor have the occlusion problem due to a person or instrument in the line of sight of the camera. In this study, occlusion-free real-time magnetic resonance (MR) scanning with a passive electromagnetic locator is proposed. A newly developed converter transforms the data of an electromagnetic locator into that of an optical sensor. Registration between the two different coordinate systems is performed for the electromagnetic locator to substitute the optical sensor without modifying the MRI system. An oil marker attached to the electromagnetic locator was identified in real-time MR images. Preliminary results demonstrated the high usability of the electromagnetic locator as an alternative position tracking method in the MR gantry. The occlusion problem of optical sensors is resolved by the proposed method.

References

Feb 28, 2003·Medical Physics·Haisong LiuPaul Okunieff
Nov 15, 2006·Medical & Biological Engineering & Computing·J HongM Hashizume

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Citations

Oct 15, 2014·The International Journal of Robotics Research·Bo YangJaydev P Desai
May 13, 2009·Clinical and Experimental Otorhinolaryngology·Steve C Lee, Brent A Senior

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