Keywords: MR-Guided Interventions, MR-Guided Interventions
Motivation: Image-guided interventions leverage MR-imaging to orient surgical tools relative to internal anatomy. Automated fiducial detection improves workflow efficiency and accuracy relative to manual selection.
Goal(s): To develop and evaluate an autonomous approach for detecting and registering device fiducials during intraprocedural MRI.
Approach: Twelve high-resolution volumetric scans of a trajectory guide with a characteristic fiducial design were acquired. Image processing methods determined the fiducial’s location and orientation.
Results: Across two cadaver and ten phantom scans, automated methods isolated the fiducial 10/12 times, and coregistered it to a template with a Dice coefficient of 0.82 in T2 acquisitions.
Impact: Applied methods were able to leverage geometric information from characteristic fiducial markers to fully autonomously identify and orient a stereotactic trajectory guide, streamlining an often manual or multimodal step in many workflows for MRI-guided interventions.
How to access this content:
For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.
After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.
After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.
Keywords