公开(公告)号：US20140062476A1

公开(公告)日：2014-03-06

申请号：US13705582

申请日：2012-12-05

申请人： Mitsue MIYAZAKI ,  Cheng Ouyang ,  Xiangzhi Zhou

发明人： Mitsue MIYAZAKI ,  Cheng Ouyang ,  Xiangzhi Zhou

IPC分类号： G01R33/54 ,  G01R33/341

CPC分类号： G01R33/54 ,  G01R33/341 ,  G01R33/50 ,  G01R33/5605

摘要： A magnetic resonance imaging (MRI) system and method (a) acquires k-space data for a patient ROI over a predetermined band of RF frequencies using RF excitation pulses having respectively corresponding RF frequencies incrementally offset from a nuclear magnetic resonant (NMR) Larmor frequency for free nuclei over a predetermined range of different offset frequencies in which target macromolecule responses are expected and to process such acquired data into spectral data for voxels in the ROI; (b) analyzes the acquired spectral data to provide spectral peak width data corresponding to tissue values in the ROI for macromolecules participating in magnetization transfer contrast (MTC) effects producing said spectral data; and (c) stores and/or displays data representative of tissue values of the ROI which values are different for different tissues.

摘要翻译： 磁共振成像（MRI）系统和方法（a）使用具有逐渐偏离核磁共振（NMR）拉莫尔频率的分别对应的RF频率的RF激励脉冲获取在RF频率的预定频带上的患者ROI的k空间数据 在预期目标大分子响应的不同偏移频率的预定范围内的自由核，并将这些获取的数据处理成ROI中的体素的光谱数据; （b）分析所获得的光谱数据，以提供对应于参与产生所述光谱数据的磁化转移对比（MTC）效应的大分子的ROI中的组织值的光谱峰宽数据; 和（c）存储和/或显示表示不同组织的值不同的ROI的组织值的数据。

公开(公告)号：US20140081125A1

公开(公告)日：2014-03-20

申请号：US13618001

申请日：2012-09-14

申请人： Xiangzhi ZHOU ,  Mitsue MIYAZAKI ,  Tsutomu HOSHINO

发明人： Xiangzhi ZHOU ,  Mitsue MIYAZAKI ,  Tsutomu HOSHINO

IPC分类号： A61B5/055

CPC分类号： A61B5/055 ,  A61B5/0044 ,  A61B5/0263 ,  A61B5/742 ,  G01R33/385 ,  G01R33/4833 ,  G01R33/5608 ,  G01R33/56366

摘要： Black blood time to inversion (BBTI) tag-on and tag-off images acquired by magnetic resonance imaging (MRI) are analyzed to produce difference magnitude 3D images as a function of time (BBTI values) representing blood perfusion in a region of interest (ROI). Perfusion data of the ROI having values which are different for normal and abnormal myocardial tissues are displayed for plural slices of a 3D image and for plural BBTI values in a single display panel.

摘要翻译： 分析通过磁共振成像（MRI）获得的黑血时间反转（BBTI）标记和标记图像，以产生表示感兴趣区域中血液灌注的时间（BBTI值）的函数的差值3D图像（ 投资回报率）。 针对正常和异常心肌组织不同的值的ROI的灌注数据被显示用于3D图像的多个切片，并且在单个显示面板中显示多个BBTI值。

公开(公告)号：US20140062474A1

公开(公告)日：2014-03-06

申请号：US13598435

申请日：2012-08-29

申请人： Xiangzhi ZHOU ,  Mitsue MIYAZAKI

发明人： Xiangzhi ZHOU ,  Mitsue MIYAZAKI

IPC分类号： G01R33/56 ,  G01R33/34

CPC分类号： A61B5/055 ,  A61B5/0044 ,  G01R33/5607

摘要： MRI k-space data is acquired for a patient ROI during data acquisition sequences including a nuclear magnetic resonance (NMR) signal readout period using a late gadolinium enhanced (LGE) data acquisition sequence including at least one fat-specific RF NMR magnetization inversion pulse imposed (a) after a water-specific RF NMR magnetization inversion pulse timed to cause a substantial null in NMR magnetization of normal tissue protons near a center of the readout period and (b) before the readout period center, which fat-specific inversion pulse is also timed to cause a substantial null in NMR magnetization of fat tissue protons near the readout period center. The acquired MR image data is reconstructed into a contrast enhanced LGE image of tissues within the ROI but having substantially suppressed normal and fat components therein.

摘要翻译： 在包括使用晚期钆增强（LGE）数据采集序列的核磁共振（NMR）信号读出周期的数据采集序列的数据采集序列期间获取MRI k空间数据，其包括至少一个脂肪特异性RF NMR磁化反转脉冲 （a）在水特异性RF核磁共振磁化反转脉冲之后，定时地使读出周期中心附近的正常组织质子的NMR磁化大致为零，和（b）在读出周期中心之前，脂肪特异性反转脉冲 也定时导致在读出周期中心附近的脂肪组织质子的NMR磁化中基本上为零。 所获取的MR图像数据被重建成ROI内的组织的对比度增强的LGE图像，但是基本上抑制了其中的正常和脂肪成分。

公开(公告)号：US20130102881A1

公开(公告)日：2013-04-25

申请号：US13633503

申请日：2012-10-02

申请人： Mitsue MIYAZAKI

发明人： Mitsue MIYAZAKI

IPC分类号： A61B5/026 ,  A61B5/00 ,  A61B5/055

CPC分类号： A61B5/0263 ,  A61B5/0037 ,  A61B5/0044 ,  A61B5/055 ,  A61B5/7285 ,  A61B5/742 ,  A61B2576/00 ,  G01R33/4838 ,  G01R33/56308 ,  G01R33/5635

摘要： A magnetic resonance imaging apparatus according to an exemplary embodiment includes a determining unit and an imaging unit. When a fluid traveling through a subject is imaged for multiple times at different phases, the determining unit determines a period on the time axis within which imaging is performed at intervals satisfying a predetermined temporal resolution. The imaging unit performs imaging for multiple times by the temporal resolution within the period.

摘要翻译： 根据示例性实施例的磁共振成像装置包括确定单元和成像单元。 当在不同阶段将流过对象的流体成像多次时，确定单元以满足预定时间分辨率的间隔在间隔执行成像的时间轴上确定周期。 成像单元通过时间分辨率在该周期内进行多次成像。

公开(公告)号：US20100249574A1

公开(公告)日：2010-09-30

申请号：US12699169

申请日：2010-02-03

申请人： Mitsue MIYAZAKI

发明人： Mitsue MIYAZAKI

IPC分类号： A61B5/055

CPC分类号： A61B5/0456 ,  A61B5/0245 ,  A61B5/055 ,  A61B5/7285 ,  G01R33/543 ,  G01R33/5635 ,  G01R33/5673

摘要： A magnetic resonance imaging apparatus includes a data acquisition unit and an image generating unit. The data acquisition unit sets a delay time from a reference wave based on heart rate information or peripheral pulse wave information previously acquired from an object and acquires MR signals by an imaging scan with the set delay time in synchronized with a beat. The delay time represents a time phase of a data acquisition timing in imaging in synchronized with the beat. The image generating unit generates a blood flow image based on the magnetic resonance signals.

摘要翻译： 磁共振成像装置包括数据获取单元和图像生成单元。 数据采集​​单元基于从对象先前获取的心率信息或外围脉搏波信息设置来自参考波的延迟时间，并且通过具有设定的延迟时间的成像扫描以与拍子同步的方式获取MR信号。 延迟时间表示与拍子同步的成像中的数据采集定时的时间相位。 图像生成单元基于磁共振信号生成血流图像。

公开(公告)号：US20130102885A1

公开(公告)日：2013-04-25

申请号：US13649636

申请日：2012-10-11

申请人： Mitsue MIYAZAKI

发明人： Mitsue MIYAZAKI

IPC分类号： A61B5/055 ,  A61M5/00 ,  A61B5/00

CPC分类号： A61B5/055 ,  A61B5/742 ,  A61B5/7425 ,  A61M5/007 ,  G01R33/50 ,  G01R33/5608

摘要： A magnetic resonance imaging apparatus according to an exemplary embodiment includes a memory, a specifying unit, and a display controller. The memory stores a corresponding color table representing correspondence relationships between T1 values of which value ranges with respect to each tissue are known and colors to be assigned to pixels with the T1 values. The specifying unit analyzes a T1-valued image and specifies colors to be assigned to each pixel on the basis of T1 values converted from pixel values of each pixel and the corresponding color table. The display controller displays on a display the image color-coded with the specified colors.

摘要翻译： 根据示例性实施例的磁共振成像装置包括存储器，指定单元和显示控制器。 存储器存储表示对于每个组织的值范围已知的T1值和要分配给具有T1值的像素的颜色之间的对应关系的相应颜色表。 指定单元分析T1值图像，并且基于从每个像素的像素值和相应的颜色表转换的T1值来指定要分配给每个像素的颜色。 显示控制器在显示器上显示用指定颜色进行了颜色编码的图像。

公开(公告)号：US20130096419A1

公开(公告)日：2013-04-18

申请号：US13644338

申请日：2012-10-04

申请人： Mitsue MIYAZAKI

发明人： Mitsue MIYAZAKI

IPC分类号： A61B5/026 ,  A61B5/00 ,  A61B5/029 ,  A61B5/055

CPC分类号： A61B5/0263 ,  A61B5/0044 ,  A61B5/024 ,  A61B5/029 ,  A61B5/055 ,  G01R33/4838 ,  G01R33/56308 ,  G01R33/5635

摘要： A magnetic resonance imaging apparatus includes a collecting unit, a specifying unit, an acquiring unit and a calculating unit. The collecting unit collects a plurality of fluid images that are images of a fluid traveling though a subject. The specifying unit specifies a distance traveled by the fluid by using a difference image between a reference image that is one of the fluid images and each fluid image. The acquiring unit acquires an elapsed time corresponding to the traveled distance from pulse sequence information that is used to collect the fluid images. The calculating unit calculates a flow velocity of the fluid by dividing the traveled distance by the elapsed time.

摘要翻译： 磁共振成像装置包括收集单元，指定单元，获取单元和计算单元。 收集单元收集多个流体图像，其是通过对象行进的流体的图像。 指定单元通过使用作为流体图像之一的参考图像和每个流体图像之间的差分图像来指定流体行进的距离。 获取单元从用于收集流体图像的脉冲序列信息获取与行进距离相对应的经过时间。 计算单元通过将行进距离除以经过时间来计算流体的流速。

公开(公告)号：US20120302872A1

公开(公告)日：2012-11-29

申请号：US13569573

申请日：2012-08-08

申请人： Mitsue MIYAZAKI ,  Hitoshi KANAZAWA

发明人： Mitsue MIYAZAKI ,  Hitoshi KANAZAWA

IPC分类号： A61B5/026 ,  A61B5/055

CPC分类号： A61B5/0263 ,  A61B5/055 ,  A61B5/7285 ,  G01R33/4818 ,  G01R33/4824 ,  G01R33/5614 ,  G01R33/5616 ,  G01R33/5617 ,  G01R33/56341 ,  G01R33/5635 ,  G01R33/56509 ,  G01R33/5673

摘要： A magnetic resonance imaging apparatus includes an imaging condition setting unit, a scan performing unit and a blood flow image generating unit. The imaging condition setting unit sets a sequence accompanying application of a motion probing gradient pulse as an imaging condition. The scan performing unit performs an imaging scan according to the sequence. The blood flow image generating unit generates a blood flow image based on data acquired by the imaging scan.

摘要翻译： 磁共振成像设备包括成像条件设置单元，扫描执行单元和血流图像生成单元。 成像条件设置单元将伴随运动探测梯度脉冲的应用的序列设置为成像条件。 扫描执行单元根据顺序执行成像扫描。 血流图像生成单元基于通过摄像扫描获取的数据生成血流图像。

公开(公告)号：US20120116207A1

公开(公告)日：2012-05-10

申请号：US13352781

申请日：2012-01-18

申请人： Mitsue MIYAZAKI

发明人： Mitsue MIYAZAKI

IPC分类号： A61B5/055

CPC分类号： G01R33/5635

摘要： An exemplary magnetic resonance imaging apparatus includes a scan performing unit. The scan performing unit is configured to sequentially perform plural types of scans in a predetermined sequence, i.e., a first scan, a second scan, and a third scan, to acquire image data at a target region in a patient in a predetermined sequence. The first scan is performed to acquire image data in a first phase encoding direction during diastole in the patient. The second scan is performed to acquire image data in a second phase encoding direction approximately orthogonal to the first phase encoding direction during diastole in the patient. The third scan is performed to acquire image date in the second phase encoding direction during systole in the patient.

摘要翻译： 示例性磁共振成像装置包括扫描执行单元。 扫描执行单元被配置为以预定顺序顺序执行多种类型的扫描，即，第一扫描，第二扫描和第三扫描，以预定顺序获取患者中目标区域的图像数据。 执行第一扫描以在患者舒张期期间获取第一相位编码方向上的图像数据。 执行第二次扫描以在患者舒张期期间获取与第一相位编码方向大致正交的第二相位编码方向的图像数据。 执行第三扫描以在患者的收缩期间获取第二相位编码方向上的图像日期。

公开(公告)号：US20100198053A1

公开(公告)日：2010-08-05

申请号：US12694610

申请日：2010-01-27

申请人： Mitsue MIYAZAKI ,  Satoshi Sugiura

发明人： Mitsue MIYAZAKI ,  Satoshi Sugiura

IPC分类号： A61B5/055

CPC分类号： A61B5/055 ,  G01R33/5602 ,  G01R33/5614 ,  G01R33/56333 ,  G01R33/5635 ,  G01R33/56366

摘要： A magnetic resonance imaging apparatus includes a first blood flow image acquisition unit and a second blood flow image acquisition unit. The first blood flow image acquisition unit acquires a first blood flow image of a breast of an object without contrast medium. The second blood flow image acquisition unit acquires a second blood flow image without contrast medium with applying a spin labeling pulse by which a region to be tagged is set based on the first blood flow image as a reference image so as to distinguish blood flowing into a desired region.

摘要翻译： 磁共振成像装置包括第一血流图像获取单元和第二血流图像获取单元。 第一血流图像获取单元获取没有造影剂的物体的乳房的第一血流图像。 第二血流图像获取单元获取没有造影剂的第二血流图像，其中应用基于第一血流图像作为参考图像设置要标记的区域的自旋标记脉冲，以便区分流入 所需区域。