Silent active device tracking for MR-guided interventional procedures

Article Cardiac & Cardiovascular Systems

Improved catheter tracking during cardiovascular magnetic resonance-guided cardiac catheterization using overlay visualization

Joshua S. Greer et al.

Summary: In this study, a new passive catheter tracking technique is proposed to improve visualization of the catheter and cardiac anatomy. This technique significantly increases the time that the catheter tip is seen throughout the procedure and enables accurate measurement of pulmonary transit time.

JOURNAL OF CARDIOVASCULAR MAGNETIC RESONANCE (2022)

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Review Cardiac & Cardiovascular Systems

Cardiovascular Magnetic Resonance-Guided Radiofrequency Ablation

Bastian Klemens Bauer et al.

Summary: Cardiovascular magnetic resonance (CMR) imaging offers potential for myocardial tissue characterization and catheter ablation guidance. Although some success has been achieved in experimental and clinical studies, there are still challenges and unproven theoretical concepts.

JACC-CLINICAL ELECTROPHYSIOLOGY (2022)

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Article Radiology, Nuclear Medicine & Medical Imaging

Real-time device tracking under MRI using an acousto-optic active marker

Yusuf S. Yaras et al.

Summary: This study demonstrates the use of an active acousto-optic marker with enhanced visibility and reduced RF-induced heating for interventional MRI. The marker was fabricated using bulk piezoelectric crystal and pi-phase shifted fiber Bragg grating. Real-time tracking capability was successfully tested in an animal model with significantly reduced RF-induced heating risk compared to conventional markers.

MAGNETIC RESONANCE IN MEDICINE (2021)

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Article Cardiac & Cardiovascular Systems