The Hospital of the University of Pennsylvania has become the city's first hospital to use a new type of imaging technology that can provide detailed, 3-D images of patients' hearts.
Because the computing tomography technology is faster, it can take a more accurate picture of the heart - which is constantly in motion.
Additionally, the imaging will work on patients with rapid heartbeats, whereas doctors would previously have had to slow the heart rate before taking a picture.
Rather than using just one X-ray to create an image of the heart, the system uses two separate X-ray sources which can be set at different energy levels.
