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:
Nov. 13, 1990
Filed:
Aug. 10, 1989
Masayuki Hagiwara, Ootawara, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A magnetic resonance imaging system comprises a static field generating section, a gradient field applying section, a high-frequency pulse applying section, a sequence control section, a receiving section, and an imaging processing section. The sequence control section includes a first echo excitation section for sequentially applying a 90.degree. pulse and a 180.degree. pulse to the object, thereby generating a first magnetic resonance echo signal, a second echo excitation section for applying a 180.degree. pulse once again after the first magnetic resonance echo signal is generated, thereby generating a second magnetic resonance echo signal, and a compensating section for applying a gradient magnetic field to the object in accordance with a predetermined sequence pattern, between the first magnetic resonance echo signal and the second magnetic resonance echo signal, thereby causing the phase of a magnetic resonance echo signal corresponding to a specific moving atomic nucleus to match with the phase of a magnetic resonance echo signal corresponding to a specific static atomic nucleus at a time instance corresponding to a peak of the second echo signal.