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Abstract #4264

Phantom pose detection with spherical navigator echoes for calibration of optical tracking systems in MRI

Denis Kokorin1, Cris Lovell-Smith1, Benjamin Knowles1, Michael Herbst1, J├╝rgen Hennig1, and Maxim Zaitsev1

1Medical Physics, University Medical Center Freiburg, Freiburg, Germany

In this work, we present a new k-space based approach for position and rotation detection to improve calibration of optical tracking systems used for prospective motion correction in MRI. 3D radial acquisition was employed to detect motion of a custom built phantom. The integrated method was tested for different motion types and showed a high precision along with a good robustness for rotation detection.

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