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Abstract #4007

MRI Needle Tracking with Phase-only Cross-Correlation (POCC) in the Presence of Susceptibility Artifacts

Andreas Reichert1 and Michael Bock1
1Department of Radiology, Medical Physics, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany

The phase-only cross correlation (POCC) algorithm can be used to accurately detect the orientation of a passive needle guide in needle interventions. A POCC sequence continuously visualizes the planned needle pathway during needle guide movement. The insertion of a needle into the needle guide, however, degrades the POCC detection because of susceptibility artifacts. In this work, susceptibility artifacts of a needle are measured and simulated, and a potential integration integrated into the POCC algorithm is evaluated.

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