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, Jürgen 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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