Latest Issue of Science News


Turning magnetic resonance inside out

People undergoing magnetic resonance imaging (MRI) scans must remain within the coils of the scanner's electromagnet. Otherwise, the patient isn't in a magnetic field uniform enough to give a good image. Unfortunately, patients often find this situation uncomfortable.

Maybe there's a better way, say Carlos A. Meriles, Alexander Pines, and their colleagues at Lawrence Berkeley (Calif.) National Laboratory and the University of California, Berkeley.

These researchers have developed a means for recovering useful magnetic resonance signals from materials within a nonuniform magnetic field. The method, described in the July 6 Science, may benefit both medical imaging and the widely used chemical-analysis technique known as nuclear magnetic resonance (NMR) spectroscopy, Meriles says.

Note: To comment, Science News subscribing members must now establish a separate login relationship with Disqus. Click the Disqus icon below, enter your e-mail and click “forgot password” to reset your password. You may also log into Disqus using Facebook, Twitter or Google.

This article is available only to subscribing members. Join SSP today or Log in.