Magnetic resonance apparatus and method for acquiring navigator signals
    92.
    发明授权
    Magnetic resonance apparatus and method for acquiring navigator signals 有权
    用于获取导航信号的磁共振装置和方法

    公开(公告)号:US09581672B2

    公开(公告)日:2017-02-28

    申请号:US14283674

    申请日:2014-05-21

    发明人: Yuji Iwadate

    CPC分类号: G01R33/5676 G01R33/3415

    摘要: A magnetic resonance apparatus which acquires navigator signals generated from a navigator region including a first portion and a second portion, the navigator signals acquired using a coil having a plurality of channels, is provided. The magnetic resonance apparatus includes a scan unit configured to execute a first navigator sequence for acquiring first navigator signals generated from the navigator region, a profile generating unit configured to generate first profiles each including position information on the first portion for every channel, a determining unit configured to determine correlations between the first profiles and a template, and a selecting unit configured to select each channel used to acquire the position information on the first portion based on the correlations.

    摘要翻译: 一种磁共振装置,其获取从包括第一部分和第二部分的导航区域产生的导航信号,使用具有多个通道的线圈获取的导航信号。 磁共振装置包括:扫描单元,被配置为执行用于获取从导航区域生成的第一导航信号的第一导航序列;轮廓生成单元,被配置为生成第一轮廓,每个轮廓包括针对每个频道的第一部分的位置信息;确定单元 被配置为确定所述第一简档和模板之间的相关性;以及选择单元,被配置为基于所述相关性来选择用于获取所述第一部分上的位置信息的每个频道。

    Communication method, communication system, and magnetic resonance apparatus
    93.
    发明授权
    Communication method, communication system, and magnetic resonance apparatus 有权
    通信方法,通信系统和磁共振设备

    公开(公告)号:US09552803B2

    公开(公告)日:2017-01-24

    申请号:US13717189

    申请日:2012-12-17

    IPC分类号: H03B29/00 G10K11/16 H04R3/00

    摘要: A communication method is provided. The communication method includes generating a pseudo background sound signal based on a gradient pulse control signal, performing a computation of subtracting the pseudo background sound signal from an acoustic signal having a sound signal and a background sound signal including a gradient coil drive sound signal, the acoustic signal obtained by an input device configured to receive the voice of a subject, and outputting sound based on a result of the computation, wherein a parameter of generating the pseudo background sound signal is controlled to reduce the difference resulting from the subtraction.

    摘要翻译: 提供了一种通信方法。 通信方法包括:基于梯度脉冲控制信号生成伪背景声音信号,从具有声音信号的声音信号和包括梯度线圈驱动声音信号的背景声音信号中进行减法伪背景声音信号的计算, 通过被配置为接收被摄体的声音的输入装置获得的声信号,并且基于该计算结果输出声音,其中,控制产生伪背景声音信号的参数,以减少由减法产生的差异。

    Geometry calibration algorithm for large flat module detector CT scanner
    94.
    发明授权
    Geometry calibration algorithm for large flat module detector CT scanner 有权
    大平面模块检测器CT扫描仪的几何校准算法

    公开(公告)号:US09398890B2

    公开(公告)日:2016-07-26

    申请号:US14168088

    申请日:2014-01-30

    IPC分类号: A61B6/03 A61B6/00

    CPC分类号: A61B6/585 A61B6/032 A61B6/583

    摘要: A method for geometric calibration of a CT scanner, including, for each row of at least one row of detector cells, establishing a complete geometric description of the CT scanner, including at least one unknown geometric parameter, establishing a description of a forward projection function using the complete geometric description, acquiring actual projection coordinates of a calibration phantom placed in a scanning field of view (SFOV) on a current row of detector cells and corresponding to a plurality of angles, acquiring calculated projection coordinates of the calibration phantom on the current row of detector cells and corresponding to the plurality of angles using the description of the forward projection function, and acquiring a calibrated value for the at least one unknown geometric parameter by evaluating the at least one unknown geometric parameter based on the acquired actual projection coordinates and calculated projection coordinates via a nonlinear least square fitting algorithm.

    摘要翻译: 一种用于CT扫描器的几何校准的方法,包括对于至少一行检测器单元的每行,建立CT扫描仪的完整几何描述,其包括至少一个未知几何参数,建立前向投影函数的描述 使用完整的几何描述,获取放置在扫描视场(SFOV)上的校准体模在当前行的检测器单元上并对应于多个角度的实际投影坐标,获取校准体模对当前的投影坐标的计算 并且通过使用前向投影函数的描述对应于多个角度,并且通过基于所获取的实际投影坐标来评估至少一个未知几何参数来获取所述至少一个未知几何参数的校准值,以及 通过非线性最小二乘拟合计算出投影坐标 算法。

    CT apparatus and an image processing method used by the same
    95.
    发明授权
    CT apparatus and an image processing method used by the same 有权
    CT装置及其使用的图像处理方法

    公开(公告)号:US09386957B2

    公开(公告)日:2016-07-12

    申请号:US14167124

    申请日:2014-01-29

    IPC分类号: A61B6/00 A61B6/03

    摘要: A method for automatically determining the best effective reconstruction gap, the method including scanning a phantom to collect image data of the phantom, using a plurality of different gap values to reconstruct image of the phantom respectively, based on the image data, thus obtaining a plurality of images respectively associated with different gap values, selecting the best image from the plurality of images, and automatically determining the gap value associated with the best image, and save it as the best effective reconstruction gap.

    摘要翻译: 一种用于自动确定最佳有效重建间隙的方法,所述方法包括使用多个不同间隙值扫描幻影以收集幻像的图像数据,以分别基于图像数据重建体模图像,从而获得多个 分别与不同间隙值相关联的图像,从多个图像中选择最佳图像,并自动确定与最佳图像相关联的间隙值,并将其保存为最佳有效重建间隙。

    Image generating method, image generating apparatus and radiation tomographic imaging apparatus, and program therefor
    96.
    发明授权
    Image generating method, image generating apparatus and radiation tomographic imaging apparatus, and program therefor 有权
    图像产生方法,图像产生装置和放射线断层成像装置及其程序

    公开(公告)号:US09378567B2

    公开(公告)日:2016-06-28

    申请号:US13788682

    申请日:2013-03-07

    发明人: Akira Hagiwara

    IPC分类号: G06T11/00 A61B6/03

    CPC分类号: G06T11/005 A61B6/032

    摘要: An image generating method is provided. The method includes performing a rearrangement process and an interpolation process on fan beam projection data, the fan beam projection data acquired by a scan that includes rotating a radiation source and a detector having a plurality of detecting elements arranged in a channel direction, wherein the interpolation process generates equally-spaced parallel beam projection data in which channel-direction intervals are equal therebetween, and wherein the interpolation process is performed with respect to a plurality of view directions. The method further includes performing a back-projection process on the equally-spaced parallel beam projection data to thereby reconstruct an image, wherein the channel-direction intervals between the equally-spaced parallel beam projection data are smaller than a reference interval obtained by dividing an interval between the detecting elements in the channel direction by a projection enlargement rate.

    摘要翻译: 提供了一种图像产生方法。 该方法包括对扇形波束投影数据执行重排处理和内插处理,通过包括使辐射源旋转的扫描获得的扇形波束投影数据和具有沿通道方向布置的多个检测元件的检测器,其中插值 过程产生等间隔的平行光束投影数据,其中信道方向间隔在其间相等,并且其中针对多个视图方向执行插值处理。 该方法还包括对等间隔的平行波束投影数据执行反投影处理,从而重建图像,其中等间隔的平行波束投影数据之间的信道方向间隔小于通过将 在通道方向上的检测元件之间的间隔以投影放大率。

    Measuring apparatus and method thereof
    97.
    发明授权
    Measuring apparatus and method thereof 有权
    测量装置及其方法

    公开(公告)号:US09339257B2

    公开(公告)日:2016-05-17

    申请号:US14087899

    申请日:2013-11-22

    IPC分类号: A61B8/08 G06T7/20 A61B5/026

    摘要: A measuring apparatus is provided. The measuring apparatus includes a measurement reference part setting unit configured to set-measurement reference parts to each of a plurality of sequential ultrasound images of a subject, a tracking unit configured to perform tracking of a plurality of regions in the ultrasound images, a first motion information calculating unit configured to calculate first motion information of the regions, based on the tracking performed by the tracking unit, and a second motion information calculating unit configured to calculate second motion information of the measurement reference parts, based on the first motion information, wherein the plurality of regions move with the measurement reference parts and include parts capable of capturing moving factors that are not able to be captured by tracking the measurement reference parts between a first ultrasound image and a second ultrasound image using the tracking unit.

    摘要翻译: 提供测量装置。 测量装置包括:测量基准部分设定单元,被配置为将测量参考部分设置到被摄体的多个连续超声图像中的每一个上;跟踪单元,被配置为执行对超声图像中的多个区域的跟踪;第一运动 信息计算单元,被配置为基于由所述跟踪单元执行的跟踪来计算所述区域的第一运动信息;以及第二运动信息计算单元,被配置为基于所述第一运动信息来计算所述测量参考部分的第二运动信息,其中 多个区域与测量基准部分一起移动,并且包括能够通过使用跟踪单元跟踪第一超声波图像和第二超声波图像之间的测量参考部分而能够捕获不能捕获的移动因素的部件。

    Collimator and CT system comprising the same
    98.
    发明授权
    Collimator and CT system comprising the same 有权
    准直仪和CT系统

    公开(公告)号:US09237875B2

    公开(公告)日:2016-01-19

    申请号:US14089877

    申请日:2013-11-26

    摘要: A CT collimator comprising: a first gate and a second gate arranged in parallel on a slide rail, the first gate being fixed to a support rack of the CT collimator via elastic members; an electromagnet system arranged on one of the first gate and the second gate; and a metal plate arranged on the other side of the one of the first gate and the second gate relative to the electromagnet system, one end of the metal plate being fixed on the other of the first gate and the second gate and the other end of the metal plate extending to below the electromagnet system, wherein the electromagnet system is configured to engage the first gate and the second gate via the metal plate when the electromagnet system is triggered.

    摘要翻译: 1.一种CT准直器,包括:平行布置在滑轨上的第一栅极和第二栅极,所述第一栅极经由弹性构件固定到所述CT准直器的支撑架; 布置在第一栅极和第二栅极之一上的电磁体系统; 以及金属板,其相对于所述电磁体系统布置在所述第一栅极和所述第二栅极中的一个的另一侧上,所述金属板的一端固定在所述第一栅极和所述第二栅极的另一端上, 所述金属板延伸到所述电磁体系统的下方,其中所述电磁体系统构造成在触发所述电磁体系统时经由所述金属板接合所述第一栅极和所述第二栅极。

    ULTRASOUND IMAGE DISPLAYING APPARATUS AND METHOD FOR DISPLAYING ULTRASOUND IMAGE
    100.
    发明申请
    ULTRASOUND IMAGE DISPLAYING APPARATUS AND METHOD FOR DISPLAYING ULTRASOUND IMAGE 审中-公开
    超声图像显示装置和显示超声图像的方法

    公开(公告)号:US20150379700A1

    公开(公告)日:2015-12-31

    申请号:US14767256

    申请日:2014-02-12

    IPC分类号: G06T5/50 G06T7/00 G06T7/20

    摘要: An ultrasound image displaying apparatus includes: a composite data generating unit which generates composite data in which data based on echo signals obtained by transmitting ultrasound to a subject are multiple-frame combined; a display unit on which an ultrasound image based on the composite data is displayed; and an index calculating unit which calculates an index related to the amount of motion artifacts in the ultrasound image for each frame, based on the data. The composite data generating unit generates composite data combined using data of some or all frames in each of which the index satisfies a prescribed reference.

    摘要翻译: 超声波图像显示装置包括:复合数据生成单元,其生成复合数据,其中基于通过向对象发送超声波而获得的回波信号的数据是多帧组合的; 基于所述复合数据显示超声波图像的显示单元; 以及索引计算单元,其基于该数据来计算与每帧的超声波图像中的运动伪像量相关的索引。 复合数据生成单元使用索引满足规定的参照的各部分或全部的帧的数据进行合成。