An echocardiogram, or echo, is a test that helps doctors check on your heart health. The test, which is a kind of ultrasound, uses harmless sound waves to create a real-time moving picture of your ...
TV and home video editor Ty Pendlebury joined CNET Australia in 2006, and moved to New York City to be a part of CNET in 2011. He tests, reviews and writes about the latest TVs and audio equipment.