The existing methods often cannot sufficiently help in deciding on the most appropriate treatment strategy. “Physically, the devices commonly used today are not able to have such a resolution for iodine-131,” explains Tereza Kráčmerová, a clinical radiological physicist at the University Hospital in Motol.

“We see a few spots there, but with poor spatial resolution, we are not able to pinpoint their exact location,” she adds. In addition, an examination takes a long time – about 20 minutes.