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.

Date of Patent:
Aug. 14, 2018

Filed:

Feb. 06, 2015
Applicant:

Hitachi, Ltd., Tokyo, JP;

Inventors:

Yo Taniguchi, Tokyo, JP;

Toru Shirai, Tokyo, JP;

Suguru Yokosawa, Tokyo, JP;

Hisaaki Ochi, Tokyo, JP;

Shinji Kurokawa, Tokyo, JP;

Hiroyuki Takeuchi, Tokyo, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01V 3/00 (2006.01); G01R 33/54 (2006.01); G01R 33/385 (2006.01);
U.S. Cl.
CPC ...
G01R 33/543 (2013.01); G01R 33/3854 (2013.01);
Abstract

When imaging is performed by executing a pulse sequence on an MRI apparatus, silencing is realized with securing sufficient application amount of crusher without extending the application time thereof. In the pulse sequence carried by the MRI apparatus, at least one gradient magnetic field pulse included in the pulse sequence has a waveform synthesized from two or more base waves shifting along the time axis direction (synthesized waveform), and the base waves have a smoothly changing waveform convex upward. The pulse of the synthesized waveform is generated from one or more trapezoidal or triangular base pulses by a waveform conversion part of a computer of the MRI apparatus or an external computer.


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