The images suggested patients who had suffered a large heart attack, in which a lot of the heart muscle was damaged, had more bleeding into the heart muscle compared with those whose heart attacks ...

Manufacturing large microelectrode arrays can be very ... faint changes in graphene’s reflectivity into a detailed picture of a heart’s electrical activity. They layered graphene on top ...

Now a company called Rhythmia Medical is developing a system for translating mere pings into pixels to give doctors a clearer picture of the heart’s architecture and electrical activity–in 3-D ...