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1. 发明申请

US20090182222A1 MAGNETIC RESONANCE IMAGING APPATATUS AND IMAGE RECONSTRUCTION METHOD 审中-公开
标题翻译：磁共振成像装置和图像重建方法
公开(公告)号：US20090182222A1
公开(公告)日：2009-07-16
申请号：US12349648
申请日：2009-01-07
申请人： Yoshio MACHIDA , Yoshimori Kassai
发明人： Yoshio MACHIDA , Yoshimori Kassai
IPC分类号： A61B5/055
CPC分类号： G01R33/565 , G01R33/482 , G01R33/5608 , G01R33/561 , G01R33/56545
摘要： In a calculator system of a magnetic resonance imaging apparatus, a filter setting unit sets a shape of a filter superimposed on k-space data to match a shape of a data collecting area in a k-space. A filter processing unit performs a filtering process on the k-space data using the filter of which the shape is set.
摘要翻译：在磁共振成像装置的计算器系统中，滤波器设定单元设置叠加在k空间数据上的滤波器的形状，以匹配k空间中的数据收集区域的形状。滤波处理单元使用设定了形状的滤波器对k空间数据进行滤波处理。

2. 发明申请

US20090224756A1 MAGNETIC RESONANCE IMAGING APPARATUS AND MAGNETIC RESONANCE IMAGING METHOD 有权
标题翻译：磁共振成像装置和磁共振成像方法
公开(公告)号：US20090224756A1
公开(公告)日：2009-09-10
申请号：US12396693
申请日：2009-03-03
申请人： Yoshio MACHIDA , Nobuyasu ICHINOSE
发明人： Yoshio MACHIDA , Nobuyasu ICHINOSE
IPC分类号： G01V3/00 , G06K9/00
CPC分类号： G01R33/3415 , G01R33/5611 , G01R33/5659
摘要： A magnetic resonance imaging apparatus includes a sensitivity map data generating unit and a sensitivity corrected image data generating unit. The sensitivity map data generating unit generates reference image data based on data for generating sensitivity map data of a phased array coil and generates the sensitivity map data by using reference image data after correction processing obtained by applying the correction processing to improve a uniformity with the reference image data based on the reference image data and phased array coil data for generating the sensitivity map data. The sensitivity corrected image data generating unit acquires image data for imaging with the phased array coil and performs sensitivity correction of the image data using the sensitivity map data.
摘要翻译：磁共振成像装置包括灵敏度图数据生成单元和灵敏度校正图像数据生成单元。灵敏度地图数据生成单元基于用于生成相控阵线圈的灵敏度地图数据的数据生成参考图像数据，并且通过应用校正处理获得的校正处理之后的参考图像数据生成灵敏度图数据，以提高参考的均匀性基于参考图像数据的图像数据和用于生成灵敏度图数据的相控阵列线圈数据。灵敏度校正图像数据生成单元获取用相位阵列线圈成像的图像数据，并使用灵敏度图数据执行图像数据的灵敏度校正。

3. 发明申请

US20090189606A1 MAGNETIC RESONANCE DIAGNOSIS APPARATUS, NOISE SPATIAL DISTRIBUTION GENERATING METHOD, AND SIGNAL ACQUISITION METHOD 有权
标题翻译：磁共振诊断装置，噪声空间分布生成方法和信号采集方法
公开(公告)号：US20090189606A1
公开(公告)日：2009-07-30
申请号：US12359480
申请日：2009-01-26
申请人： Yoshio MACHIDA
发明人： Yoshio MACHIDA
IPC分类号： G01R33/54
CPC分类号： G01R33/48 , A61B5/055 , G01R33/543 , G01R33/5608 , G01R33/5611 , G01R33/56509
摘要： A magnetic resonance diagnosis apparatus includes a coil assembly including a high-frequency coil, a transmission unit which excites magnetization of a specific atomic nucleus of an object via the high-frequency coil, a reception unit including a detection unit for receiving a magnetic resonance signal via the high-frequency coil, a low-pass filter, and an analog/digital converter, a control unit which sets a passband of the low-pass filter to not less than three odd multiple of a frequency band determined from an imaging field of view, and sets a sampling frequency of the analog/digital converter to an oversampling frequency exceeding a signal band of the magnetic resonance signal, a noise spatial distribution generating unit which generates a noise spatial distribution on the basis of an output from the reception unit.
摘要翻译：磁共振诊断装置包括：线圈组件，其包括高频线圈，经由高频线圈激励物体的特定原子核的磁化的传输单元;接收单元，包括用于接收磁共振信号的检测单元通过高频线圈，低通滤波器和模拟/数字转换器，控制单元，其将低通滤波器的通带设置为不小于从成像领域确定的频带的三个奇数倍视图，并将模拟/数字转换器的采样频率设置为超过磁共振信号的信号频带的过采样频率;噪声空间分布产生单元，其基于来自接收单元的输出产生噪声空间分布。

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