You've seen that email or Facebook post - the one that tells you that a cardiologist IMPLORES you to start coughing if you have a heart attack. It says occasionally it could SAVE YOUR LIFE. Wow, that sounds like an important tip that we should all pass onto everyone we know. Or does it...? This is the first in a new series of very short videos that deal with all sorts of medical topics but you can expect a fair amount of debunking of pseudoscience and nonsense. If you haven't
To orient yourself for what we refer to as a "short axis stack", imagine, if you will, chopping a fat gherkin into slices. This is a sequence of six MRI 'slices' through a man's heart, from the top through to the bottom. He had suffered a large heart attack (infarct) a few weeks earlier, where the artery supplying the front of the heart blocked and the heart muscle was irreversibly damaged.
It's unusual to actually be able to see the scar tissue so clearly, but the white pa