Work

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

Year: 2025

Type: conference-paper

Abstract: 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.

Source: Proceedings on CD-ROM - International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition/Proceedings of the International Society for Magnetic Resonance in Medicine, Scientific Meeting and Exhibition

DOI: 10.58530/2025/4840

Authors: Aditya Bhosale, Yunkun Zhao, Leslie Ying, Xiaoliang Zhang

Institution: University at Buffalo, State University of New York

Language: English

Topic: Advanced MRI Techniques and Applications

Subfield: Radiology, Nuclear Medicine and Imaging

Field: Medicine

Domain: Health Sciences

Open Access status: green

Funder: National Institute of Biomedical Imaging and Bioengineering

Award: G5238985487