New directions in intracardiac echocardiography.

Intracardiac Echocardiography is gaining popularity as the enabling technology for real-time intracardiac imaging. It offers the unique advantage of being able to visualize anatomy and hemodynamics while also providing the interventional cardiac electrophysiologist real-time feedback on other catheters deployed in the heart. In this mini-review, current state of the technology and applications are summarized. Evolving technologies and applications are also reviewed.