ALEXANDRIA, Va., July 16 -- United States Patent no. 12,669,561, issued on June 30, was assigned to neuro42 Inc. (San Francisco).

"Active shimming for low-field magnetic resonance imaging" was invented by Rishabh Ostawal (San Francisco), Ghoncheh Amouzandeh (Alameda, Calif.), Haidong Peng (San Francisco) and Hung-Yu Lin (Walnut Creek, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides various devices, systems, and methods for active shimming for an MRI system. For example, an MRI system can a first gradient coil, a second gradient coil, a third gradient coil, and a permanent magnet. The permanent magnet is configured to generate a magnetic field B0 having a low field streng...