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. 21, 1993
Filed:
Jul. 15, 1991
Graeme McKinnon, Zurich, CH;
Peter Bosiger, Ennetbaden, CH;
U.S. Philips Corp., New York, NY (US);
Abstract
A sequence acts--preferably several times--upon an examination region, which sequence comprises two frequency-selective high-frequency pulses not exciting the water component, between which a 180.degree. high-frequency pulse is present. Such a sequence can be more insensitive to imperfections of the 180.degree. pulse in that the second frequency-selective high-frequency pulse is followed by a further frequency-selective high-frequency pulse not exciting the water component and in that between the second frequency-selective high frequency pulse and the further high-frequency pulse as well as after the further high-frequency pulse a magnetic gradient field is switched on and off in such a manner that the time integrals across this gradient field before and after the further high-frequency pulse are equal to each other.