Meeting Banner
Abstract #4840

A Novel Omnidirectional Marker for Catheter Tracking in endovascular MRI Applications at 0.55T

Aditya Ashok Bhosale1, Yunkun Zhao1, Leslie L Ying1,2, and Xiaoliang Zhang1,2
1Department of Biomedical Engineering, The State University of New York at Buffalo, Buffalo, NY, United States, 2Department of Electrical Engineering, The State University of New York at Buffalo, Buffalo, NY, United States

Synopsis

Keywords: MR-Guided Interventions, Vascular, Catheter Tracking, Low-Field MRI

Motivation: Real-time catheter tracking in MRI-guided procedures is essential but is often hindered by signal loss due to catheter orientation and interference from the B1 field, which diminishes contrast.

Goal(s): This study develops an omnidirectional catheter marker with an LC structure for consistent tracking across all orientations.

Approach: Simulations were used to design the marker, featuring alternating inductor windings and a custom capacitor to achieve the target Larmor frequency. The marker performance was evaluated across six orientations in a torso phantom.

Results: The marker demonstrated reliable B1 field elevation near the inductor, enhancing contrast and ensuring effective orientation-independent catheter tracking.

Impact: This research enhances real-time catheter tracking in MRI-guided procedures through an innovative omnidirectional catheter marker. Improved tracking accuracy can lead to safer interventions and better patient outcomes, ultimately increasing the effectiveness of interventional MRI in diverse clinical applications.

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.

Click here for more information on becoming a member.

Keywords