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公开(公告)号：US09514564B2
公开(公告)日：2016-12-06
申请号：US13879062
申请日：2011-07-28
申请人： Takehiro Tsujita
发明人： Takehiro Tsujita
CPC分类号： G06T15/08 , A61B8/06 , A61B8/14 , A61B8/463 , A61B8/466 , A61B8/483 , A61B8/485 , A61B8/488 , A61B8/5246
摘要： For generating ultrasonic projection images in which various kind of ultrasonic projection images have been appropriately combined, the invention is provided with: a storage unit that stores tomographic image volume data and elastic image volume data; a volume rendering unit that generates tomographic projection images by volume rendering on the basis of the tomographic image volume data; a display device that displays the ultrasonic projection images generated by the volume rendering unit; and an operation unit for inputting commands to control the volume rendering unit. For one of the rendering spaces partitioned by a cutting plane set in the rendering space by a command input from the operation unit, the volume rendering unit renders voxels of tomographic image volume data corresponding to the voxels of elastic image volume data that have elasticity values satisfying a set threshold value, and generates and displays the tomographic projection image on the display device.
摘要翻译： 为了产生适当组合各种超声波投影图像的超声波投影图像，本发明提供有：存储单元，其存储断层图像体积数据和弹性图像体积数据; 体积绘制单元，其基于所述断层图像体积数据，通过体积绘制来生成层析投影图像; 显示装置，显示由体绘制单元生成的超声波投影图像; 以及用于输入命令以控制体绘制单元的操作单元。 对于由通过从操作单元输入的命令在绘制空间中设置的切割平面分割的渲染空间之一，体绘制单元呈现与具有满足的弹性值的弹性图像体数据的体素相对应的断层图像体积数据的体素 设定阈值，并且在显示装置上生成并显示断层图像投影图像。
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公开(公告)号：US09508142B2
公开(公告)日：2016-11-29
申请号：US14422788
申请日：2013-08-07
CPC分类号： G06T7/0012 , A61B6/03 , A61B6/4233 , A61B6/5258 , G01N23/046 , G06T5/005 , G06T2207/10081 , G06T2207/30004
摘要： An X-ray detector (320), configured to have X-ray detecting elements (322) arranged in array, detects the intensity of X-rays that are radiated from the X-ray tube (311) and have passed through a subject (500). A data processing device (420) executes steps of: arranging scan data, which is based on the intensity of X-rays, in an array sequence of the X-ray detecting elements (322) or in a time sequence, to detect an anomalous scan data; associating a weight greater than “1” with scan data adjacent to the anomalous scan data, and associating a weight of “1” with other imaging data; calculating an update amount of a pixel vector that reflects these weights; and performing an iterative operation using the update amount to generate an X-ray CT image of the subject (500).
摘要翻译： 被配置为具有排列成阵列的X射线检测元件（322）的X射线检测器（320），检测从X射线管（311）辐射并穿过被检体的X射线的强度（ 500）。 数据处理装置（420）执行以下步骤：将基于X射线强度的扫描数据排列在X射线检测元件（322）的阵列序列中，或者按时间顺序排列，以检测异常 扫描数据; 将大于“1”的重量与与异常扫描数据相邻的扫描数据相关联，并将“1”的权重与其他成像数据相关联; 计算反映这些权重的像素向量的更新量; 以及使用所述更新量执行迭代操作以生成所述对象（500）的X射线CT图像。
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3.发明授权公开(公告)号：US09504451B2
公开(公告)日：2016-11-29
申请号：US14130561
申请日：2012-05-23
申请人： Satoshi Tamano
发明人： Satoshi Tamano
CPC分类号： A61B8/546 , A61B5/01 , A61B8/085 , A61B8/461 , A61B8/485 , A61B8/5223 , G01S7/52036 , G01S7/52042 , G01S7/52074
摘要： An inventive ultrasound diagnostic device is provided, which can display information on the temperature rise in a biological object under ultrasound radiation for measurement of a shear elasticity of a biological tissue of interest, thereby drawing attention of an examiner of the device and enabling him to retain the temperature rise within a predetermined safe range while performing the shear elasticity measurement. The device is adapted to measure the shear elasticity of a tissue by ultrasonic waves emitted from a probe. The device has a calculation unit configured to calculate a rise in temperature of the biological tissue irradiated with a focused ultrasonic (US) beam, and a display unit configured to display the temperature information obtained.
摘要翻译： 提供本发明的超声诊断装置，其可以在超声波辐射下显示关于生物物体的温度升高的信息，以测量感兴趣的生物组织的剪切弹性，从而引起装置的检查者的注意并使其能够保留 在进行剪切弹性测量时，温度升高到预定的安全范围内。 该装置适于通过从探针发射的超声波测量组织的剪切弹性。 该装置具有：计算单元，被配置为计算用聚焦超声波（US）光束照射的生物体组织的温度上升;以及显示单元，被配置为显示获得的温度信息。
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4.发明授权公开(公告)号：US09471981B2
公开(公告)日：2016-10-18
申请号：US13427812
申请日：2012-03-22
申请人： Osamu Arai , Takao Iwasaki , Tsuyoshi Mitake , Koichi Oshio , Kiyoshi Okuma , Hiroshi Shinmoto
发明人： Osamu Arai , Takao Iwasaki , Tsuyoshi Mitake , Koichi Oshio , Kiyoshi Okuma , Hiroshi Shinmoto
CPC分类号： G06T7/0028 , A61B8/13 , A61B8/463 , A61B8/466 , A61B8/483 , G06T7/33 , G06T7/38 , G06T19/00 , G06T2207/10081 , G06T2207/10088 , G06T2207/10132 , G06T2207/30101 , G06T2219/028 , Y10S128/916
摘要： An ultrasonic image is captured by an ultrasonic probe. A reference image is obtained by extracting a tomographic image corresponding to the scan plane of the ultrasonic image from volume image data that is pre-obtained by a diagnostic imaging apparatus and that is stored in a volume-data storing unit. The ultrasonic image and the reference image are displayed on the same screen. In this case, of the reference image, a portion corresponding to the view area of the ultrasonic image is extracted and the resulting reference image having the same region as the ultrasonic image is displayed as a fan-shaped image.
摘要翻译： 超声波图像被超声波探头捕获。 通过从由诊断成像装置预先获得并存储在体数据存储单元中的体图像数据提取与超声图像的扫描平面相对应的断层图像来获得参考图像。 超声波图像和参考图像显示在同一屏幕上。 在这种情况下，在参考图像中，提取与超声波图像的视野区域相对应的部分，并且将与超声波图像具有相同区域的所得到的参考图像显示为扇形图像。
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5.发明授权Ultrasound diagnostic device and method of generating an intermediary image of ultrasound image 有权超声诊断装置及生成超声图像中间图像的方法公开(公告)号：US09408591B2
公开(公告)日：2016-08-09
申请号：US14739387
申请日：2015-06-15
发明人： Go Kotaki , Atsushi Miyamoto , Kenji Nakahira
CPC分类号： A61B8/5246 , A61B8/14 , A61B8/461 , A61B8/462 , A61B8/5207 , A61B8/54 , G06T3/4053 , G06T2207/10016 , G06T2207/10132 , G06T2207/30004
摘要： In order to acquire high resolution ultrasound images while maintaining an appropriate frame rate in ultrasound diagnostic devices, the disclosed method generates high resolution ultrasound images by performing image reconstruction on the basis of multiple ultrasound frame images captured along a time series and the magnitudes of positional shifts, or forms high resolution ultrasound images by performing image reconstruction on the basis of multiple ultrasound frame images acquired by controlling the ultrasound probe and varying scan orientation or scan focal length frame by frame.
摘要翻译： 为了在超声诊断装置中保持适当的帧速率获取高分辨率超声图像，所公开的方法通过基于沿着时间序列捕获的多个超声帧图像和位置偏移的大小执行图像重建来生成高分辨率超声图像 ，或者通过基于通过控制超声波探头并逐帧改变扫描方向或扫描焦距获取的多个超声帧图像执行图像重建来形成高分辨率超声图像。
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公开(公告)号：US09402598B2
公开(公告)日：2016-08-02
申请号：US13817541
申请日：2011-08-19
申请人： Yasuhiro Yoshimura , Tatsuya Nagata , Akifumi Sako
发明人： Yasuhiro Yoshimura , Tatsuya Nagata , Akifumi Sako
CPC分类号： A61B8/4494 , A61B8/0883 , A61B8/0891 , A61B8/14 , A61B8/4444 , B06B1/0292 , G01N29/2456 , G10K11/002
摘要： In order to obtain a high-resolution ultrasound diagnostic image while reducing the back side reflection of a ultrasound irradiated to the side opposite to the ultrasound transmission direction of an ultrasound transmission/reception device, disclosed is an ultrasound probe, wherein a substrate is provided thereon with a cavity, insulation layers having the cavity therebetween, and an upper layer electrode and a lower layer electrode having the cavity and the insulation layers therebetween, so as to form an ultrasound vibration element, the substrate is held by a backing with a low-modulus member therebetween, and a direct voltage and a alternating voltage are applied between the electrodes to vibrate the ultrasound vibration element, and wherein a mechanical impedance by the substrate and the low-modulus member has a substantially equal value as an acoustic impedance of the backing.
摘要翻译： 为了获得高分辨率超声波诊断图像，同时减少了照射到与超声波发送/接收装置的超声波发送方向相反的一侧的超声波的背面反射，公开了一种超声波探头，其中在其上设置有基板 具有空腔，其间具有空腔的绝缘层，以及具有所述空腔和所述绝缘层之间的上层电极和下层电极，以形成超声波振动元件，所述基板由背衬保持， 模数构件之间，并且在电极之间施加直流电压和交流电压以振动超声波振动元件，并且其中由衬底和低模量构件的机械阻抗具有与背衬的声阻抗基本相等的值 。
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7.发明授权Gradient coil, magnetic resonance imaging device, and method for designing coil pattern 有权梯度线圈，磁共振成像装置和设计线圈图案的方法公开(公告)号：US09389291B2
公开(公告)日：2016-07-12
申请号：US13511820
申请日：2010-11-26
申请人： Mitsushi Abe
发明人： Mitsushi Abe
IPC分类号： G01R33/385 , G01R33/20 , G01R33/421 , G01R33/565
CPC分类号： G01R33/385 , G01R33/20 , G01R33/4215 , G01R33/56518
摘要： A method for designing a coil pattern, whereby the production of an error magnetic field and further an eddy current can be suppressed to improve the quality of a cross-sectional image irrespective of cylindrical cross-sectional shape of the main coil and the shield coil. The difference between the initial values of the target magnetic field and the magnetic field vector is set as a difference target magnetic field. An approximate value of the current potential vector that produces the difference target magnetic field is represented by a polynomial of an eigenvector group of the current potential. The coefficient of each of the terms of the polynomial is determined on the basis of the singular value and the eigenvector group of the magnetic field distribution.
摘要翻译： 一种用于设计线圈图案的方法，由此可以抑制误差磁场和另外的涡流的产生，以提高横截面图像的质量，而与主线圈和屏蔽线圈的圆柱形截面形状无关。 将目标磁场的初始值和磁场矢量之间的差设定为差分目标磁场。 产生差分目标磁场的电流电位矢量的近似值由当前电位的特征向量组的多项式表示。 基于磁场分布的奇异值和特征向量组来确定多项式的每个项的系数。
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公开(公告)号：US09389289B2
公开(公告)日：2016-07-12
申请号：US13881739
申请日：2011-10-26
申请人： Toru Shirai , Yoshitaka Bito , Satoshi Hirata , Yoshihisa Soutome , Yo Taniguchi
发明人： Toru Shirai , Yoshitaka Bito , Satoshi Hirata , Yoshihisa Soutome , Yo Taniguchi
IPC分类号： G01R33/36 , A61B5/055 , G01R33/465 , G01R33/48 , G01R33/485 , G01R33/561
CPC分类号： G01R33/3621 , A61B5/055 , G01R33/465 , G01R33/4828 , G01R33/485 , G01R33/5611
摘要： Images of two or more kinds of substances showing different chemical shifts, such as water image and metabolite image, are obtained without extending measurement time. For example, images of two or more kinds of desired substances showing different chemical shifts, such as water image and metabolite image, are obtained by one time of execution of an imaging sequence. In this execution, a pre-pulse is applied so that signals of the substances to be separated shift on the image, and magnetic resonance signals are received with receiver RF coils in a number not smaller than the number of types of the substances to be separated. An image reconstructed from the magnetic resonance signals is separated into images of the individual substances using sensitivity maps of the receiver RF coils. Then, correction is performed for returning the shifted image to the original position. Further, residual signals induced by errors generated in the measurement and the separation processing are eliminated by using spectroscopic images obtained after the separation.
摘要翻译： 在不延长测量时间的情况下，获得显示不同化学位移的两种或更多种物质的图像，例如水图像和代谢物图像。 例如，通过一次执行成像序列，可以获得显示不同化学位移的两种或更多种所需物质的图像，例如水图像和代谢物图像。 在该执行中，施加预脉冲，使得要分离的物质的信号在图像上移动，并且用接收器RF线圈接收不少于待分离物质的数量的数量的磁共振信号 。 使用接收机RF线圈的灵敏度图将从磁共振信号重构的图像分离成各个物质的图像。 然后，执行用于将移动的图像返回到原始位置的校正。 此外，通过使用分离后获得的分光图像来消除由测量和分离处理中产生的误差引起的残留信号。
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公开(公告)号：US20160183900A1
公开(公告)日：2016-06-30
申请号：US14905057
申请日：2014-07-24
发明人： Hideaki FUJII , Tetsuo NAKAZAWA
CPC分类号： A61B6/5205 , A61B6/032 , A61B6/4021 , A61B6/4435 , A61B6/465 , A61B6/467 , A61B6/469 , G06T3/4069 , G06T11/005 , G06T11/006
摘要： In an FFS method that improves spatial resolution by moving an X-ray focal spot to multiple positions to acquire projection data, in order to provide an X-ray CT apparatus and an image reconstruction method that enables to improve spatial resolution of the entire effective field of view without reducing a rotational speed, the X-ray focal spot in the X-ray tube device 101 is shifted to acquire focal shift projection data (FFS projection data), the virtual view generation unit 126 up-samples the FFS projection data (generates a virtual view) in the view direction, and the reconstruction computing unit 127 reconstructs an image using actual data of the FFS projection data in the central region 604 closer to the image center than a predetermined boundary and using the up-sampled projection data in the peripheral region 603 outside the boundary in an image reconstruction computing process.
摘要翻译： 在通过将X射线焦点移动到多个位置以获取投影数据来提高空间分辨率的FFS方法中，为了提供能够提高整个有效场的空间分辨率的X射线CT装置和图像重建方法， 在不降低旋转速度的情况下，X射线管装置101中的X射线焦斑被移位以获得焦点偏移投影数据（FFS投影数据），虚拟视图生成单元126对FFS投影数据进行上采样 在视野方向生成虚拟视图），重建计算单元127使用比预定边界更靠近图像中心的中心区域604中的FFS投影数据的实际数据来重建图像，并且使用上采样的投影数据 外围区域603在图像重建计算处理中的边界外。
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10.发明申请公开(公告)号：US20160170001A1
公开(公告)日：2016-06-16
申请号：US14909807
申请日：2014-08-20
IPC分类号： G01R33/565 , G01R33/36 , G01R33/48 , G01R33/385
CPC分类号： G01R33/56509 , G01R33/36 , G01R33/385 , G01R33/4818 , G01R33/482 , G01R33/4824 , G01R33/5617 , G01R33/565 , G01R33/56563
摘要： The present invention obtains high-quality images even in a case of measurement with a radial sampling method. For this purpose, pre-measurement is performed to extract only a component different for each blade from among shift amounts from among echo signals, and a shift amount in k-space of an echo signal by the said component is reflected to a reconstruction process. In the pre-measurement, echo signals are obtained respectively by applying readout gradient magnetic field pulses that change the polarity to the positive and negative and that have the same pulse shape as readout gradient magnetic field pulses to be used in an image acquisition sequence. A shift amount is obtained for each axis of X, Y, and Z of an MRI apparatus as a variation amount of a phase difference between both the echo signals.
摘要翻译： 即使在采用径向取样方法进行测量的情况下，本发明也能获得高质量的图像。 为此，执行预测量以从回波信号中的每个叶片的移位量中仅提取不同的分量，并且由所述分量将回波信号的k空间中的偏移量反映到重建处理。 在预测量中，通过施加将极性改变为正和负的读出梯度磁场脉冲并且与图像采集序列中要使用的读出梯度磁场脉冲具有相同的脉冲形状，分别获得回波信号。 将MRI装置的X，Y，Z的各轴的偏移量作为两个回波信号之间的相位差的变化量。
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