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Abstract #1861

Phase Only Cross-Correlation Tracking of a Passive Marker for MR-Guided Interventions

Roger Jason Stafford1, Florian Maier2, Axel Joachim Krafft2, Michael Bock2, Axel Winkel3, Kamran Ahrar4

1Department of Imaging Physics, The University of Texas M. D. Anderson Cancer Center , Houston, TX, United States; 2Department of Medical Physics in Radiology, Cancer Research Center Heidelberg (DKFZ), Heidelberg, Germany; 3Invivo GMBH, Schwerin, Germany; 4Department of Diagnostic Radiology, The University of Texas M. D. Anderson Cancer Center, Houston, TX, United States

Real-time MR-guidance of percutaneous procedures may benefit from methods for automatically adjusting the scan prescription to the needle trajectory, as well as visual delineation of the trajectory, in real-time. In this work, the feasibility of using a phase only cross correlation tracking algorithm for automated identification of a contrast filled needle sleeve with real-time adjustment of the scan prescription for continuous delineation of the needle trajectory during manipulation was investigated in phantom and patients for MR-guidance of percutaneous procedures in a closed bore 1.5T clinical scanner.