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Abstract #1194

Passive Real-Time Needle Tracking and Needle Tip Estimation

Andreas Reichert1, Samantha Hickey1, Johannes Fischer1, Michael Vogele2, Simon Reiss1, and Michael Bock1
1Dept. of Radiology, Medical Physics, Medical Center University of Freiburg, Faculty of Medicine, Freiburg, Germany, 2Interventional Systems GmbH, Kitzbuehel, Austria


A real-time sequence is presented with automatic adjustment of the imaging plane parallel to a needle. The sequence utilizes the phase-only cross correlation (POCC) algorithm to detect the orientation of an end-effector and to visualize the planned needle pathway. Additionally, it detects a passive marker at the distal end of the needle to calculate the position of the needle tip for real-time display during needle insertion. The sequence is evaluated in a phantom experiment, and both lateral and longitudinal needle insertion accuracies are determined.

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