System and method for fabricating electromagnetic field enhancing objects for magnetic resonance imaging

US11540740B2 · kind B2 · utility

Assignee

• The Medical College of Wisconsin, Inc. · US

Inventors

• Andrew S. Nencka · Greendale, US
• Andrzej Jesmanowicz · Wauwatosa, US
• James S. Hyde · Dousman, US
• Eric S. Paulson · Sparta, US
• Lutfi Tugan Muftuler · Aliso Viejo, US
• Daniel Shefchik · Milwaukee, US

Key dates

• Filing date: May 20, 2015
• Grant date: Jan 3, 2023
• Expiry date: May 22, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/246
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Systems and methods for designing and fabricating three-dimensional objects with precisely computed material compositions for use in enhancing electromagnetic fields for magnetic resonance imaging (“MRI”) are provided. As examples, the fabricated object can be designed to reduce magnetic field inhomogeneities in the main magnetic field of an MRI system, or to reduce inhomogeneities in a transmit radio frequency (“RF”) field (i.e., a B1 field). As examples, the object can be a shim; a housing or other part of an RF coil; a medical device, such as a surgical implant; or component used in a medical device, such as a housing for an implantable medical device.