"A modern CT scan is like a spiral x-ray. As the patient slowly moves through the machine, x-ray guns and detectors turn around the patient's head (or other body part). Computers assemble the information into a detailed scan of the entire brain, providing an incredible view of the structures within the brain."
" The stress echo is still a dynamic test akin to driving the car round the track, whereas the CT scan is like opening up the car cylinders to have a look when the car is static and switched off. The CT scan is more of a structural study as opposed to a dynamic study. Both have their merits, but with the worries created by Fukushima, some patients may wish to avoid the medical radiation involved in a CT scan."
METAMIA is a free database of analogy and metaphor. Anyone can contribute or search. The subject matter can be anything. Science is popular, but poetry is encouraged. The goal is to integrate our fluid muses with the stark literalism of a relational database. Metamia is like a girdle for your muses, a cognitive girdle.