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:
Sep. 25, 1990
Filed:
Jun. 29, 1989
Terrence J Brovost, Cleveland Hts., OH (US);
David A Lampman, Lakewood, OH (US);
Kenneth S Foster, Eastlake, OH (US);
Picker International, Inc., Highland Hts., OH (US);
Abstract
In-slice magnetic resonance is excited with a 90.degree. RF pulse (50, 50'). A 180.degree. RF pulse (56, 56') is applied to cause a magnetic resonance spin echo (58, 58'). However, the 180.degree. pulse also induces resonance in material outside the selected slice. The out-of-slice data is superimposed on the magnetic resonance spin echoes. Two views of magnetic resonance data are collected with the same phase encode gradient and stored temporarily in first and second memories (72, 74). The views are combined (76) such that the out-of-slice data sums and the in-slice data cancels. The magnitude of the out-of-slice data is magnitude adjusted (78) to create an out-of-slice magnetization view which is stored in an out-of-slice magnetization memory (80). A plurality of views with different phase encode gradients are subsequently collected during a magnetic resonant imaging sequence. Each view is subtracted from (90) the out-of-slice data view and transformed (92) into an image representation.