傾斜コイル動作誘導による磁場ドリフトをモデル化する磁気共鳴撮像装置

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专利权人:

ゼネラル・エレクトリック・カンパニイ

发明人:

テスフェイ・ケビード・キデーン,ティモシー・ジョン・ヘイヴンズ,ロンジ・ジャン,マーク・ヘイグ・キャチャトゥリアン,ジェンユー・ジャン

申请号：

JP2011188075

公开号：

JP5819141B2

申请日:

2011.08.31

申请国别(地区):

JP

年份:

2015

代理人:

摘要：

A system and method for modeling gradient coil operation induced magnetic field drift include a computer programmed to acquire a pulse sequence to be applied during an MR scan and determine a power spectrum of a plurality of gradient pulses of the pulse sequence. The computer is also programmed to calculate a drift of the magnetic field attributable to application of the plurality of gradient pulses by the plurality of gradient coils during application of the pulse sequence and apply the pulse sequence during the MR scan. The computer is further programmed to acquire MR data based on application of the pulse sequence, correct the acquired MR data based on the calculated drift of the magnetic field, and reconstruct an image based on the corrected MR data.

来源网站：

中国工程科技知识中心

来源网址：

http://www.ckcest.cn/home/