Abstract #2139

Interactive Real-Time MRI-Guided Needle Tracking using Scanner Remote Control

Amanda Aleong¹, Junichi Tokuda², Pedro Moreira², Ravi Seethamraju³, Gerald Moran⁴, Himanshu Bhat⁵, and Robert Weersink⁶

¹Biomedical Engineering, University of Toronto, Toronto, ON, Canada, ²Radiology, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, United States, ³Siemens Medical Solutions USA Inc., Boston, MA, United States, ⁴Siemens Healthcare Ltd, Vineland, ON, Canada, ⁵Siemens Medical Solutions USA Inc., Newton, MA, United States, ⁶University of Toronto, Toronto, ON, Canada

Synopsis

MRI offers the gold standard for delineating cancerous lesions in soft tissue. Minimally invasive needle-based interventions require the accurate placement of multiple long, flexible needles at the target site. The manual tracking of needles in MR images is a time-consuming task that is further challenged by needle deflection. Automated needle segmentation offers the means to evaluate the alignment of the needle to the scan plane. This work demonstrates automatic needle tracking using remote scan control to dynamically update the scan plane of a real-time MR sequence. Automatic scan plane alignment is validated, and the feasibility of needle tracking is assessed.

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