Standard transesophageal echocardiography (TEE) pictures are two-dimensional (2D). It's also possible to get three-dimensional (3D) pictures from TEE. These pictures provide even more details about the structure and function of the heart and its blood vessels.
Clinical trials are research studies that explore whether a medical strategy, treatment, or device is safe and effective for humans.
The NHLBI updates Health Topics articles on a biennial cycle based on a thorough review of research findings and new literature. The articles also are updated as needed if important new research is published. The date on each Health Topics article reflects when the content was originally posted or last revised.