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Abstract #1836

Self-Resonant Swiss Roll Structures as Semi-Active Device Visualization Method for Interventional MRI

Mandy Kaiser1, Markus Detert2, Urte Kgebein1, Hans-Peter Schulze3, Bertram Schmidt2, Georg Rose1

1Department of Healthcare Telematics and Medical Engineering, Otto-von-Guericke University, Magdeburg, Sachsen-Anhalt, Germany; 2Department of Microsystems Technology, Otto-von-Guericke University, Magdeburg, Sachsen-Anhalt, Germany; 3Department of Theoretical Electrical Engineering, Otto-von-Guericke University, Magdeburg, Sachsen-Anhalt, Germany

During MR-guided minimal-invasive interventions the precise positioning of the instruments has a high impact on the treatment outcome. In order to get a visual verification of the instruments position, several highlighting methods such as resonant markers have been developed. This paper investigates the usability of self-resonant swiss roll structures as semi-active visualization method. Several resonant markers were fabricated and analyzed regarding electrical parameters and visibility within the MR image. The achieved quality factors range from 40 to 91. Severely high contrast-to-noise ratios were measured with all markers. Further investigations should concentrate on a miniaturization of the fabricated markers.

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Keywords

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