JACKSONVILLE, Fla. -- Ryan Moore was playing baseball when he first felt his heart racing.

"It felt like it was going to jump out of my chest," said Ryan Moore, who was diagnoses with Wolf-Parkinson White Syndrome -- a condition that made his heart beat at dangerously high levels.

He needed a procedure called cardiac ablation to destroy the tiny fibers that cause the arrhythmia. Doctors place catheters in the heart to locate the abnormal tissue and deliver a shock.

But Moore's abnormality was deep within his heart, so his doctor couldn't get to it with the standard approach.

Dr. Warren Jackman used technology similar to a GPS device to map Moore's heart and see exactly where the catheters needed to go.

"In a sense, it's locating the position in space similar to how GPS works," Jackman said. "Instead of taking the signals from a satellite, it took the signals from under the table."

A robot guided the catheter on its own to the exact problem spot that appeared on the map.

Two weeks after the procedure, Moore was back to playing ball -- racking up stats on the field and making history with a promising technology.

Jackman said the new technique could be used to correct just about any type of arrhythmia, making future hearth procedures more precise and safer, because the catheter stops when it touches heart tissue.