The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 16, 2019
Filed:
Jun. 12, 2015
The United States of America, As Represented BY the Secretary, Dept. of Health and Human Services, Washington, DC (US);
The United States of America, Represented BY the Secretary of Commerce, Washington, DC (US);
Gary Zabow, Boulder, CO (US);
Stephen Dodd, Rockville, MD (US);
Alan Koretsky, Bethesda, MD (US);
John Moreland, Louisville, CO (US);
The United States of America, as Represented by the Secretary, Department of Health and Human Services, Washington, DC (US);
The United States of America, as represented by the Sectretary of Commerce, Washington, DC (US);
Abstract
The present invention relates to magnetic contrast structures for magnetic resonance imaging, and methods of their use. The contrast structures include magnetic materials arranged as a pair of disk-shaped magnetic components with a space between a circular surface of each disk shape, or a tubular magnetic structure, a substantially cylindrical magnetic structure, a substantially spherical shell-formed magnetic structure, or a substantially ellipsoidal shell-formed structure, each defining a hollow region therein. The space and/or hollow region in the contrast structure creates a spatially extended region contained within a near-field region of the contrast structure over which an applied magnetic field results in a homogeneous field, such that nuclear magnetic moments of a second material when arranged within the spatially extended region precess at a characteristic Larmor frequency, whereby the contrast structure is adapted to emit a characteristic magnetic resonance signal of the magnetic material.