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:
Mar. 01, 2016
Filed:
Nov. 29, 2010
Yoshihisa Soutome, Tokyo, JP;
Hideta Habara, Musashino, JP;
Yoshitaka Bito, Kokubunji, JP;
Hiroyuki Takeuchi, Kashiwa, JP;
Tetsuhiko Takahashi, Tokyo, JP;
Hisaaki Ochi, Kodaira, JP;
Yoshihisa Soutome, Tokyo, JP;
Hideta Habara, Musashino, JP;
Yoshitaka Bito, Kokubunji, JP;
Hiroyuki Takeuchi, Kashiwa, JP;
Tetsuhiko Takahashi, Tokyo, JP;
Hisaaki Ochi, Kodaira, JP;
HITACHI MEDICAL CORPORATION, Tokyo, JP;
Abstract
There is provided a technique for securing a large examination space in a tunnel type MRI device without inviting increase of manufacturing cost and without significantly reducing irradiation efficiency or uniformity of the irradiation intensity distribution in an imaging region. Between rungs of a partially cylindrical RF coil, which coil corresponds to a cylindrical RF coil of which part is removed, there are disposed half-loops generating magnetic fields, which are synthesized with magnetic fields generated by loops constituted by adjacent rungs of the partially cylindrical RF coil and rings connecting the rungs to generate a circularly polarized or elliptically polarized magnetic field. Further, high-frequency signals of the same reference frequency having a desired amplitude ratio and phase difference are supplied to the partially cylindrical RF coils and half-loops.