A new procedure that uses electromagnets to help doctors  implant heart pacing devices is safer because it reduces radiation exposure for both patients and physicians.

That’s the new finding published Tuesday in the American Heart Association journal Circulation: Arrhythmia and Electrophysiology.

The new technique, called electronmagnetic tracking, is similar to GPS tracking found in today’s cars and smartphones. Tools equipped with sensors are detected electromagnetically, reducing the need for conventional fluoroscopy, which emits radiation.

The report is the first instance using the technique to help implant Cardiac Resynchronization Therapy (CRT) devices in patients with heart failure. CRT is an increasingly common treatment option for patients with severe congestive heart failure and conduction disease.

Click here for more details about the study.