Top-to-toe scans are becoming a reality, but is there a clinical benefit?
In the science-fiction movie Elysium, residents of a luxury space station have medical pods that scan them for cancer. And this futuristic concept has taken off in the past few years, with full-body MRI screening being evaluated in dozens of clinical trials in several countries.
At the same time, private companies are scanning anyone willing to pay.
One of the reasons for the popularity of top-to-toe screeningis that it complements whole-genome sequencing.
Since the human genome was sequenced in 2003, researchers have made rapid progress in working out