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    • 1. 发明申请
    • MAGNETIC RESONANCE IMAGING APPARATUS AND METHOD
    • 磁共振成像装置及方法
    • US20120019248A1
    • 2012-01-26
    • US13257124
    • 2010-03-17
    • Masayuki Nonaka
    • Masayuki Nonaka
    • G01R33/385G01R33/48
    • G01R33/5611G01R33/246G01R33/3664
    • When imaging for sensitivity distribution measurement is performed, a whole-body coil for both transmission and reception and a specified coil used for the present imaging are used as a reception coil, while being switched.The switching of the reception coil is performed by switching between the whole-body coil and the specified coil for each echo in the same encode step.An image created from the echo obtained by the specified coil is divided by an image created from the echo obtained by the whole-body coil to calculate the sensitivity distribution of the specified coil.The sets of data used for the calculation are almost simultaneously obtained, thus providing accurate sensitivity distribution with no influence derived from the movement of a subject.The sensitivity distribution is used to correct the image obtained by the present imaging.Alternatively, the sensitivity distribution is used for the folding operation of parallel imaging.
    • 当执行用于灵敏度分布测量的成像时,在切换时将用于发送和接收的全身线圈和用于本成像的特定线圈用作接收线圈。 接收线圈的切换是通过在相同的编码步骤中通过在全体线圈和每个回波的指定线圈之间切换进行的。 将由指定线圈获得的回波创建的图像除以由全身线圈获得的回波产生的图像,以计算指定线圈的灵敏度分布。 几乎同时获得用于计算的数据集,从而提供准确的灵敏度分布,而不受受试者运动的影响。 灵敏度分布用于校正由本成像获得的图像。 或者,灵敏度分布用于平行成像的折叠操作。
    • 5. 发明授权
    • Magnetic resonance imaging apparatus and method
    • 磁共振成像装置及方法
    • US09157978B2
    • 2015-10-13
    • US13257124
    • 2010-03-17
    • Masayuki Nonaka
    • Masayuki Nonaka
    • G01R33/385G01R33/48G01R33/561G01R33/24G01R33/36
    • G01R33/5611G01R33/246G01R33/3664
    • When imaging for sensitivity distribution measurement is performed, a whole-body coil for both transmission and reception and a specified coil used for the present imaging are used as a reception coil, while being switched.The switching of the reception coil is performed by switching between the whole-body coil and the specified coil for each echo in the same encode step.An image created from the echo obtained by the specified coil is divided by an image created from the echo obtained by the whole-body coil to calculate the sensitivity distribution of the specified coil.The sets of data used for the calculation are almost simultaneously obtained, thus providing accurate sensitivity distribution with no influence derived from the movement of a subject.The sensitivity distribution is used to correct the image obtained by the present imaging.Alternatively, the sensitivity distribution is used for the folding operation of parallel imaging.
    • 当执行用于灵敏度分布测量的成像时,在切换时将用于发送和接收的全身线圈和用于本成像的特定线圈用作接收线圈。 接收线圈的切换是通过在相同的编码步骤中通过在全体线圈和每个回波的指定线圈之间切换进行的。 将由指定线圈获得的回波创建的图像除以由全身线圈获得的回波产生的图像,以计算指定线圈的灵敏度分布。 几乎同时获得用于计算的数据集,从而提供准确的灵敏度分布,而不受受试者运动的影响。 灵敏度分布用于校正由本成像获得的图像。 或者,灵敏度分布用于平行成像的折叠操作。