A Simple Scanner Control Technique for Device Localization during MRI-Guided Percutaneous Procedures
Matthew Alexander MacDonald1,2, Adam C. Waspe3,4, Joao Amaral3,4, and Samuel Pichardo1,2
1Electrical Engineering, Lakehead University, Thunder Bay, ON, Canada, 2Thunder Bay Regional Research Institute, Thunder Bay, ON, Canada, 3Medical Imaging, University of Toronto, Toronto, ON, Canada, 4Hospital for Sick Children, Toronto, ON, Canada
An experiment demonstrates a simple technique for a clinician operator to interactively align scan planes to an interventional device within the scan room during an MRI guided procedure. Input is collected using foot pedal switches to select axial/device intersection points to specify a virtual line of best fit about which auxiliary views are aligned automatically. Volunteer operators position a biopsy needle within an ex vivo porcine specimen while interactively tracking the needle position and measurements are taken to assess the technique's efficiency.
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