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:
Aug. 04, 1987
Filed:
Dec. 03, 1985
Andre Briguet, Villeurbanne, FR;
Maurice Goldman, Massy, FR;
Commissariat a l'Energie Atomique, Massy, FR;
Abstract
Process for the generation and processing of signals for obtaining a nuclear magnetic resonance image, which is free from distortions, from an inhomogeneous polarization field B=Bo+E(x,y,z) using known 2D,FT and 3D,FT image coding methods involving the application of a 90.degree. radiofrequency pulse in plane xOy, then a phase coding during time .tau. followed by frequency coding by applying, along Ox, a reading gradient during the acquisition of the free precession signal, which is then made to undergo Fourier transformations with respect to time and with respect to the gradient or gradients applied. During a second series of sequences involving the successive application of the same gradients, the free precession system is subject to a second 180.degree. radiofrequency pulse at the start of establishing each reading gradient.