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1. 发明授权

US09591988B2 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：US09591988B2
公开(公告)日：2017-03-14
申请号：US13287268
申请日：2011-11-02
申请人： Shigehide Kuhara , Shuhei Nitta , Tomoyuki Takeguchi , Nobuyuki Matsumoto
发明人： Shigehide Kuhara , Shuhei Nitta , Tomoyuki Takeguchi , Nobuyuki Matsumoto
IPC分类号： A61B5/055 , A61B5/00 , G01R33/483 , G01R33/54 , A61B5/0456 , G01R33/567
CPC分类号： A61B5/055 , A61B5/0037 , A61B5/0044 , A61B5/0456 , G01R33/385 , G01R33/4833 , G01R33/543 , G01R33/5673
摘要： According to one embodiment, a MRI apparatus includes an acquisition unit, a reference section information calculating unit, a positioning unit and an imaging unit. The acquisition unit acquires frames of section image data including a heart from an object with use of magnetic resonance. The reference section information calculating unit calculates spatial positional information of a reference section of the heart based on the frames of the section image data. The positioning unit displays a reference section image of the heart on a display unit and performs positioning of an imaging part for imaging through the displayed reference section image of the heart. The reference section image is calculated from the frames of the section image data based on the positional information of the reference section. The imaging unit images the imaging part set by the positioning.
摘要翻译：根据一个实施例，MRI装置包括获取单元，参考部分信息计算单元，定位单元和成像单元。采集单元使用磁共振从物体获取包括心脏的区域图像数据的帧。参考部分信息计算单元基于截面图像数据的帧来计算心脏的基准部分的空间位置信息。定位单元在显示单元上显示心脏的参考部分图像，并且通过所显示的心脏的参考部分图像执行用于成像的成像部件的定位。基于参考部分的位置信息，根据截面图像数据的帧计算参考部分图像。成像单元通过定位对成像部件进行成像。

2. 发明授权

US09927502B2 Respiration suppressing mat and magnetic resonance imaging apparatus and method 有权
公开(公告)号：US09927502B2
公开(公告)日：2018-03-27
申请号：US12032251
申请日：2008-02-15
申请人： Shigehide Kuhara , Ayako Ninomiya
发明人： Shigehide Kuhara , Ayako Ninomiya
IPC分类号： A61B5/055 , G01R33/28 , A61B90/14 , A61B90/00
CPC分类号： G01R33/28 , A61B90/14 , A61B2090/374
摘要： A respiration suppressing member includes a main body of an elastic material which is formed into a shape having a pressurizing portion for pressurizing that portion of the abdomen of a subject under imaging diagnosis by a medical modality which is located below the sternum and between the right and left ribs of the subject.

3. 发明授权

US09532728B2 Magnetic resonance imaging apparatus 有权
标题翻译：磁共振成像装置
公开(公告)号：US09532728B2
公开(公告)日：2017-01-03
申请号：US13010042
申请日：2011-01-20
申请人： Shigehide Kuhara , Ayako Ninomiya
发明人： Shigehide Kuhara , Ayako Ninomiya
IPC分类号： A61B5/00 , A61B5/055 , A61B5/113 , A61B5/0456
CPC分类号： A61B5/055 , A61B5/0037 , A61B5/0044 , A61B5/0456 , A61B5/113 , A61B5/1135 , A61B5/7292
摘要： An image processing apparatus stores data for a series of images associated with a range including a heart and diaphragm of an object. A temporal change in a moving amount of the diaphragm and a temporal change in a moving amount of the heart are generated from the series of images, and a ratio of (a) the moving amount of the heart to (b) the moving amount of the diaphragm is calculated.
摘要翻译：图像处理装置存储与包括对象的心脏和膈肌的范围相关联的一系列图像的数据。从一系列图像生成膜片的移动量的时间变化和心脏的移动量的时间变化，并且（a）心脏的移动量与（b）移动量的移动量计算隔膜。

4. 发明申请

US20110178388A1 MAGNETIC RESONANCE IMAGING APPARATUS 有权
标题翻译：磁共振成像装置
公开(公告)号：US20110178388A1
公开(公告)日：2011-07-21
申请号：US13010042
申请日：2011-01-20
申请人： Shigehide Kuhara , Ayako Ninomiya
发明人： Shigehide Kuhara , Ayako Ninomiya
IPC分类号： A61B5/05
CPC分类号： A61B5/055 , A61B5/0037 , A61B5/0044 , A61B5/0456 , A61B5/113 , A61B5/1135 , A61B5/7292
摘要： According to one embodiment, an image processing apparatus includes a storage unit configured to store data of a series of images associated with a range including a heart and diaphragm of an object, a moving amount generating unit configured to generate a temporal change in moving amount of the diaphragm and a temporal change in moving amount of the heart from the series of images, and a ratio calculation unit configured to calculate a ratio of the moving amount of the heart to the moving amount of the diaphragm.
摘要翻译：根据一个实施例，一种图像处理装置包括：存储单元，被配置为存储与包括对象的心脏和膜片的范围相关联的一系列图像的数据;移动量生成单元，被配置为产生移动量的移动量的时间变化所述隔膜和来自所述一系列图像的心脏的移动量的时间变化，以及比率计算单元，被配置为计算所述心脏的移动量与所述隔膜的移动量的比率。

5. 发明授权

US06946836B2 Magnetic resonance imaging involving movement of patient's couch 有权
标题翻译：磁共振影像涉及患者沙发的运动
公开(公告)号：US06946836B2
公开(公告)日：2005-09-20
申请号：US09841171
申请日：2001-04-25
申请人： Shigehide Kuhara
发明人： Shigehide Kuhara
IPC分类号： G01R33/28 , G01R33/563 , G01V3/00
CPC分类号： G01R33/56383 , G01R33/543 , G01R33/5611 , G01R33/5635 , G01R33/56375
摘要： A magnetic resonance imaging system performing various types of imaging that involves movement of a patient's couch. The system has a patient's couch having a tabletop movable in a predetermined direction passing through a static magnetic field as well as reception multiple RF coils consisting of for example a plurality of coil groups. The tabletop is automatically moved in its longitudinal direction in accordance with a length of each coil group in the predetermined direction. At each moved position, scanning is performed on a given pulse sequence. An echo signal is received through the multiple RF coils, then switched over by an input switchover unit to be sent to a receiving-system circuit. The echo signal is subjected to given processing in this circuit so that it is converted to echo data. The echo data are produced into an MR image by a host computer.
摘要翻译：磁共振成像系统执行涉及患者沙发运动的各种成像。该系统具有患者的沙发，其具有通过静态磁场的预定方向移动的台面以及由例如多个线圈组构成的接收多个RF线圈。根据每个线圈组在预定方向上的长度，桌面在其纵向上自动移动。在每个移动的位置，对给定的脉冲序列执行扫描。通过多个RF线圈接收回波信号，然后由输入切换单元切换以发送到接收系统电路。回波信号在该电路中进行给定的处理，以便将其转换成回波数据。回波数据由主计算机产生到MR图像中。

6. 发明授权

US06484048B1 Real-time interactive three-dimensional locating and displaying system 有权
标题翻译：实时交互式三维定位和显示系统
公开(公告)号：US06484048B1
公开(公告)日：2002-11-19
申请号：US09422258
申请日：1999-10-21
申请人： Tsutomu Hoshino , Shigehide Kuhara , Junichi Makita
发明人： Tsutomu Hoshino , Shigehide Kuhara , Junichi Makita
IPC分类号： A61B505
CPC分类号： G01R33/4833 , G01R33/56
摘要： An easily recognized spatial relationship between an object and a section thereof is displayed (together with a real time image of the section) to permit quick, accurate, easy and accurate selection of a desired three-dimensional position for the section. The coordinate system of an imaging system may also be concurrently displayed. In addition to sequentially pasted real time section images, a reference image acquired at an arbitrary time may also be pasted on a portion of the display. Thus a reference image and a real-time image of the scanned section can be displayed to facilitate a better spatial understanding of the position of the section being scanned and imaged.
摘要翻译：显示对象和其一部分之间容易识别的空间关系（与该部分的实时图像一起），以允许快速，准确，简单且准确地选择该部分的所需三维位置。也可以同时显示成像系统的坐标系。除了顺序粘贴的实时区间图像之外，也可以将任意时间获取的参考图像粘贴在显示器的一部分上。因此，可以显示扫描部分的参考图像和实时图像，以便于更好地对被扫描和成像的部分的位置的理解。

7. 发明授权

US5909120A Gradient magnetic field electronic power supply for gradient coil 失效
公开(公告)号：US5909120A
公开(公告)日：1999-06-01
申请号：US934620
申请日：1997-09-22
申请人： Kiyomi Mori , Shigehide Kuhara
发明人： Kiyomi Mori , Shigehide Kuhara
IPC分类号： A61B5/055 , G01R33/385 , G01V3/00
CPC分类号： G01R33/3852
摘要： A gradient magnetic field power supply includes an amplifier for supplying current to a gradient coil. Between input and output of the amplifier is connected a feedback circuit which feeds a portion of an output current at the output back to the input and has a built-in phase compensating circuit for compensating the phase of the feedback current. The frequency response of the phase compensating circuit is made variable and adjusted to fit variations in the load impedance of the amplifier with time. This ensures optimum phase compensation.

8. 发明授权

US5603319A Magnetic resonance imaging apparatus 失效
标题翻译：磁共振成像装置
公开(公告)号：US5603319A
公开(公告)日：1997-02-18
申请号：US305589
申请日：1994-09-14
申请人： Shigehide Kuhara , Shoichi Kanayama
发明人： Shigehide Kuhara , Shoichi Kanayama
IPC分类号： G01R33/48 , G01R33/561 , G01R33/563 , A61B5/055
CPC分类号： G01R33/5615 , G01R33/563 , G01R33/4806 , G01R33/5618
摘要： A magnetic resonance imaging apparatus capable of obtaining a brain functional image without spending much time and of facillitating to distinguish a vein portion from a cortex portion. The magnetic resonance imaging apparatus includes: a first unit which acquires at least one of data emphasizing a signal from a blood portion in a region of interest in a biological body to be examined and data least affected by inhomogeneity of a static magnetic field; a second unit which acquires data in which a change of magnetic field inhomogeneity (T.sub.2 *) in the region of interest is emphasized; and a control unit which executes simultaneously the first acquiring unit and the second acquiring unit during a predetermined pulse sequence after a radio-frequency magnetic field is applied to the biological body.
摘要翻译：一种磁共振成像装置，其能够获得大脑功能图像，而不花费大量的时间并且能够将静脉部分与皮质部分区分开。磁共振成像装置包括：第一单元，其获取强调来自所检查的生物体中的感兴趣区域中的血液部分的信号的数据和受到静态磁场的不均匀性影响的数据中的至少一个; 获取其中强调感兴趣区域中的磁场不均匀性（T2 *）的变化的数据的第二单元; 以及控制单元，其在对生物体施加射频磁场之后的预定脉冲序列期间同时执行第一获取单元和第二获取单元。

9. 发明授权

US5063348A Magnetic resonance imaging system 失效
标题翻译：磁共振成像系统
公开(公告)号：US5063348A
公开(公告)日：1991-11-05
申请号：US484048
申请日：1990-02-23
申请人： Shigehide Kuhara , Kozo Satoh
发明人： Shigehide Kuhara , Kozo Satoh
IPC分类号： G01R33/36 , G01R33/56 , G01R33/561 , G01R33/565
CPC分类号： G01R33/5615 , G01R33/3607 , G01R33/56 , G01R33/56545 , G01R33/5616 , G01R33/56554
摘要： In an MRI system, an RF field and slicing, phase encoding, and read-out gradient fields are applied to an object to be examined which is placed in a homogeneous static field in a predetermined sequence. An MR signal from a region of interest in the object is received through a probe, and is detected by a detection circuit using a predetermined reference wave. A detection output from the synchronous detection circuit is sampled to acquire MR signal data and to obtain diagnostic data. The system includes a reference wave control section for shifting the frequency and phase of the reference wave, by predetermined amounts, from the frequency and phase of an MR signal when the phase encoding and read-out gradient fields are zero. The reference wave control section changes a frequency shift value of the reference wave to positive and negative phases in synchronism with switching of the gradient fields, and changes a phase shift value of the reference wave stepwise.

10. 发明授权

US09474455B2 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：US09474455B2
公开(公告)日：2016-10-25
申请号：US12763643
申请日：2010-04-20
申请人： Mitsue Miyazaki , Shigehide Kuhara
发明人： Mitsue Miyazaki , Shigehide Kuhara
IPC分类号： A61B5/029 , G01R33/563 , A61B5/00 , G01R33/483 , G01R33/54 , G01R33/56
CPC分类号： A61B5/029 , A61B5/0037 , A61B5/0263 , A61B5/0402 , A61B5/7271 , A61B5/742 , G01R33/385 , G01R33/4833 , G01R33/543 , G01R33/5601 , G01R33/5608 , G01R33/5635 , G01R33/56366
摘要： According to one of the aspects of an MRI apparatus of the present invention, the MRI apparatus includes an imaging data acquiring unit and a blood flow information generating unit. The imaging data acquiring unit acquires imaging data from an imaging region including myocardium, without using a contrast medium, by applying a spatial selective excitation pulse to a region including at least a part of an ascending aorta for distinguishably displaying inflowing blood flowing into the imaging region. The blood flow information generating unit generates blood flow image data based on the imaging data.
摘要翻译：根据本发明的MRI装置的一个方面，MRI装置包括成像数据获取单元和血流信息生成单元。成像数据获取单元通过将空间选择激励脉冲施加到包括升序主动脉的至少一部分的区域，从而可以不使用造影剂从包括心肌的成像区域获取成像数据，以区分地显示流入成像区域的流入血液。血流信息生成部基于摄像数据生成血流图像数据。

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