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公开(公告)号：US12089922B2
公开(公告)日：2024-09-17
申请号：US18046997
申请日：2022-10-17
发明人： Shohei Hamanaga , Yuki Takai
CPC分类号： A61B5/055 , G01R33/5608
摘要： An MRI apparatus includes a scanner configured to apply an RF pulse to an object and processing circuity configured to: set a first pulse sequence in which acquisition of a first set of MR signals is started after a first delay time from application of a first excitation pulse, and a second pulse sequence in which acquisition of a second set of MR signals is started after a second delay time from application of a second excitation pulse, the second delay time being different from the first delay time; acquire first and second sets of MR signals by causing the scanner to apply the first and second pulse sequences to the object; generate a combined dataset by averaging a first dataset based on the first set of MR signals and a second dataset based on the second set of MR signals; and reconstruct an MR image based on the combined dataset.
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公开(公告)号：US20190004134A1
公开(公告)日：2019-01-03
申请号：US16022089
申请日：2018-06-28
发明人： Yuko HARA , Kanako Saito , Taichiro Shiodera , Tomoyuki Takeguchi , Takashi Shigeta , Masao Yui , Hiroshi Kusahara , Yuki Takai , Yoshimori Kasai
摘要： A magnetic resonance imaging apparatus according to an embodiment includes sequence controlling circuitry and processing circuitry. The sequence controlling circuitry acquires first k-space data in units of a plurality of segments while arranging the plurality of segments to overlap one another in a read-out direction, the first k-space being divided into the plurality of segments in the read-out direction. The processing circuitry calculates a weighting coefficient on a basis of information about a gradient magnetic field related to the acquisition and generates second k-space data on a basis of the plurality of segments in the first k-space data and the weighting coefficient.
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