A flow chart, or flow diagram, is a graphical representation of a process or system that details the sequencing of steps required to create output. A typical flow chart uses a set of basic symbols ...

For instance, doctors use heart PET scans when assessing suspected coronary artery disease, as they can precisely map blood flow distribution and identify regions where blood is not flowing as ...

A tech makes sure everything is aligned and then the robots go to work, finding the exact point on your head where they can accurately scan for blood flow in the brain. It’s a tiny, precise spot ...