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:
May. 29, 2018
Filed:
Nov. 21, 2007
Lawrence L. Wald, Cambridge, MA (US);
Thomas Witzel, Cambridge, MA (US);
Bruce R. Rosen, Lexington, MA (US);
Lawrence L. Wald, Cambridge, MA (US);
Thomas Witzel, Cambridge, MA (US);
Bruce R. Rosen, Lexington, MA (US);
The General Hospital Corporation, Boston, MA (US);
Abstract
Spin-lock T-weighted images of a subject are acquired and processed to produce an image that is indicative of bioelectromagnetic activity in the subject. A spin-lock RF field Bis produced such that the Larmor frequency in the rotating frame corresponds to the expected frequency of the bioelectromagnetic activity. As a result, the magnetic field fluctuations generated by the bioelectromagnetic currents shorten the Tof the surrounding tissue, creating a contrast mechanism that is seen as a reduced MR signal in the T-weighted image that is produced.