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Abstract #5424

Evaluating MR-visible catheters for radiation-free cardiac catheterization (9001)

Mustafa Farooq1 and Amina Farooq2
1Medical College of Georgia, Augusta, GA, United States, 2Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland Medical Center, Baltimore, MD, United States

Synopsis

Motivation: Cardiac catheterization depends on fluoroscopy, exposing patients—especially children and those with congenital heart disease—to cumulative radiation. MRI-guided catheterization avoids radiation but is limited by poor catheter visibility and safety concerns.

Goal(s): This study evaluates MR-visible catheter technologies to identify viable solutions for enabling safe, effective, and radiation-free cardiac catheterization.

Approach: We conducted a focused review of passive and active MR-visible catheter designs, assessing device visibility, tracking precision, RF-induced heating, and procedural feasibility across preclinical and clinical studies.

Results: Active tracking catheters demonstrated superior precision and real-time feedback. However, safety and integration challenges remain, requiring hybrid solutions and standardization efforts.

Impact: This work identifies the most promising MR-visible catheter technologies and highlights remaining safety and workflow barriers. It will guide future development toward radiation-free cardiac interventions, with direct implications for pediatric and congenital heart disease populations requiring repeated procedures.

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