2020 vision: Cardiology trends to watch

Several new cardiology technologies are gaining traction, including digital stethoscopes, handheld ultrasound devices, and a cuffless blood pressure monitor. Designed for use with smartphones or tablets, they hold the promise of faster, non-invasive diagnoses of various heart-related conditions. A lab-on-a-chip may help researchers find better anti-clotting medications, and a drug that lowers stubbornly high cholesterol with just two injections per year is being tested.