Technical - Interventional CMR-Towards a Clinical Grade Active Guidewire

Towards a Clinical Grade Active Guidewire

Video Transcription

Video Summary

The presentation describes a clinical-grade, actively visualized metallic guide wire for MRI-guided interventional procedures, designed for 0.55T low-field systems. The team addressed longstanding problems in active guide wire design: poor tip visibility, heating risk, and weak mechanical performance. Their solution uses a monopole antenna with an added tip coil, a curved tip for navigation, and a detachable handle with tuning, matching, and detuning elements. Tests in phantoms and pigs showed continuous shaft and tip visibility, acceptable heating, and mechanical performance comparable to commercial guide wires. The design is being commercialized for future clinical evaluation.

Keywords

MRI-guided interventional procedures

active metallic guide wire

low-field 0.55T MRI

guide wire heating and visibility

clinical-grade interventional device