Which approaches help minimize radiation exposure during EP procedures?

• A. Non-fluoroscopic mapping, shielding, and collimation to reduce exposure.
• B. Increase fluoroscopy time for better visualization.
• C. Use low-imaging protocols with no mapping.
• D. Avoid imaging entirely.

Answer: (C)

Minimizing radiation exposure in EP procedures comes from guiding catheters with imaging-free mapping whenever possible and from applying physical protective measures to the beam. Non-fluoroscopic mapping lets you visualize and navigate the heart's anatomy and electrical signals without continuous X-ray, which greatly reduces the need for fluoroscopy. When some fluoroscopy is used, narrowing the X-ray beam with collimation and protecting staff with shielding further cut both patient and operator dose by reducing beam size and scatter.

This combination is more effective than simply increasing fluoroscopy time or relying on imaging alone. Increasing fluoroscopy time directly raises radiation exposure. Relying on low-imaging protocols without mapping can reduce dose somewhat, but mapping is what enables safer navigation with less X-ray, and avoiding imaging entirely isn’t feasible for accurate catheter placement and ablation guidance.