In the worlds of art and perception, there’s a phenomenon known as simultaneous contrast. It basically means that a color surrounding another may change the way the brain perceives the interior color.

Hospitals are just learning about and are very concerned that a shortage of the fluid they use to make CT scans and MRIs more readable may last until late June. For example, The University of Alabama ...

Direct mechanisms of kidney injury from exposure to contrast agents are thought to be due to nephrotoxic effects on the tubular epithelium, leading to loss of function, apoptosis, and eventually, ...