Abstract
In freehand MR-guided interventions, the monitoring of the current needle position relative to the target is crucial. In this work, a method for fast passive needle tip tracking in 3D is presented. For a true- FISP sequence, it is shown that proper k-space sub-sampling and signal processing allow for an accurate estimation of the needle tip position. A reduction in scan time is achieved by drastically reducing the number of measurements. The calculated needle tip positions are superimposed on a pre-interventional 3D planning volume in form of a needle model to ensure a continuous monitoring of the current needle tip position.
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Schmitt, S., Sobotta, C., Choli, M., Overhoff, H. (2015). Passive 3D Needle Tip Tracking in Freehand MR-Guided Interventions with Needle Model Visualization. In: Handels, H., Deserno, T., Meinzer, HP., Tolxdorff, T. (eds) Bildverarbeitung für die Medizin 2015. Informatik aktuell. Springer Vieweg, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-46224-9_17
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DOI: https://doi.org/10.1007/978-3-662-46224-9_17
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