Handheld laser that helps detect arthritis in seconds

POINTING a handheld device at joints could help to detect rheumatoid arthritis (RA) faster.

RA is caused by the immune system attacking the joints, leading to pain and swelling.

The gadget, developed at the University of Twente in Belgium, fires soundwaves and a laser beam into joints such as the wrists, fingers and knees. The way the soundwaves bounce back and the reflections of the laser are converted by a computer program into an image that reveals the amount of inflammation.

This could speed up diagnosis. Early treatment can limit the condition and even put it in remission.