System for Medical Imaging Using Long Persistence Contrast Agents
    61.
    发明申请
    System for Medical Imaging Using Long Persistence Contrast Agents 有权
    使用长寿命对比剂进行医学影像系统

    公开(公告)号:US20120307964A1

    公开(公告)日:2012-12-06

    申请号:US13484311

    申请日:2012-05-31

    IPC分类号: A61B6/03

    摘要: A system acquires images in the presence of a contrast agent of relatively long persistence using a synchronization processor, image acquisition device and imaging controller. The synchronization processor provides an image acquisition trigger signal for acquiring images at a particular point within both a cardiac and a respiratory cycle in response to signals representing cardiac and respiratory cycles. The image acquisition device includes an assembly comprising a radiation emitter and detector rotatable about a patient for acquiring images of a portion of patient anatomy at different angles. The imaging controller initiates acquisition of data representing multiple images in the presence of a contrast agent of relatively long persistence by repetitively, initiating rotation of the assembly to an angle, acquiring an image at the angle in response to the trigger signal and incrementally increasing the angle.

    摘要翻译: 系统使用同步处理器,图像获取装置和成像控制器在存在具有较长持久性的造影剂的情况下获取图像。 同步处理器响应于表示心脏和呼吸周期的信号,提供用于在心脏和呼吸周期内的特定点获取图像的图像采集触发信号。 图像采集装置包括一个组件,该组件包括辐射发射器和围绕患者旋转的检测器,用于以不同的角度获取患者解剖结构的一部分的图像。 成像控制器在存在持续时间相对较长的造影剂的情况下启动表示多个图像的数据,重复地启动组件的旋转角度,响应于触发信号以角度获取图像并递增地增加角度 。

    Method for the production of angiography recordings
    63.
    发明授权
    Method for the production of angiography recordings 有权
    生产血管造影记录的方法

    公开(公告)号:US08054941B2

    公开(公告)日:2011-11-08

    申请号:US12507818

    申请日:2009-07-23

    摘要: The invention relates to a method for the production of angiography recordings. First, a mask image is recorded with a first modality. A contrast medium is injected after the first recording. A control image is recorded with a second modality after the injection of the contrast medium. A spreading of the contrast medium is determined based on the images and the control of subsequent recordings is analyzed. A recording criterion is checked to determine whether the recording criterion has been achieved. If it has not been achieved, the control image is repeatedly recorded for repeatedly determining the spreading of the contrast medium. If it has been achieved, a contrast image is recorded with the first modality and the mask image and the contrast image are processed and analyzed.

    摘要翻译: 本发明涉及一种生产血管造影记录的方法。 首先,以第一模式记录掩模图像。 在第一次记录之后注射造影剂。 在注射造影剂之后,以第二模态记录控制图像。 基于图像确定造影剂的扩展,并分析后续记录的控制。 检查记录标准以确定是否已经实现了记录标准。 如果还没有实现,则重复记录控制图像以重复确定造影剂的扩展。 如果已经实现,则用第一模态记录对比度图像,并且处理和分析掩模图像和对比度图像。

    Method for Reconstruction of a Current Three-Dimensional Image Dataset of an Object During a Monitoring Process and X-Ray Device
    64.
    发明申请
    Method for Reconstruction of a Current Three-Dimensional Image Dataset of an Object During a Monitoring Process and X-Ray Device 有权
    在监测过程和X射线设备期间重建对象的当前三维图像数据集的方法

    公开(公告)号:US20110268341A1

    公开(公告)日:2011-11-03

    申请号:US13094423

    申请日:2011-04-26

    IPC分类号: G06K9/00 G01N23/04 B82Y99/00

    摘要: A method for reconstruction of an actual three-dimensional image dataset of an object during a monitoring process is proposed. Two-dimensional. X-ray projection images which correspond to a recording geometry are continuously recorded from different projection angles. The three-dimensional image dataset are reconstructed from a first number of these projection images, especially by a back projection method. The proportion of the oldest projection image contained in the current three-dimensional image dataset is removed from the three-dimensional image dataset and the proportion of the actual projection image is inserted in the three-dimensional image dataset after each recording of the actual projection image.

    摘要翻译: 提出了一种用于在监视过程中重建对象的实际三维图像数据集的方法。 二维。 对应于记录几何的X射线投影图像从不同的投影角度连续记录。 从第一数量的这些投影图像,特别是通过反投影方法重构三维图像数据集。 将包含在当前三维图像数据集中的最旧的投影图像的比例从三维图像数据集中去除,并且在每次记录实际投影图像之后将实际投影图像的比例插入到三维图像数据集中 。

    Device for merging a 2D radioscopy image with an image from a 3D image data record
    65.
    发明授权
    Device for merging a 2D radioscopy image with an image from a 3D image data record 有权
    用于将2D放射成像图像与来自3D图像数据记录的图像合并的装置

    公开(公告)号:US08045780B2

    公开(公告)日:2011-10-25

    申请号:US11904583

    申请日:2007-09-27

    IPC分类号: G06K9/00

    摘要: The invention relates to a device for merging a 2D radioscopy image with an image obtained from a 3D image data record, having a memory unit that stores the 2D radioscopy image and the 3D image data record, a segmentation unit that segments an inner surface of a hollow organ from the 3D image data record, a registration unit that registers the 2D radioscopy image with the 3D image data record, a back-projection unit that back-projects the pixels of the 2D radioscopy image onto the segmented surface, taking account of the projection geometry of the 2D radioscopy image and the registration, and an image merger unit that generates a virtual endoscopy view of the surface from the segmented surface using the back-projected pixels. The device primarily allows 2D radioscopy images to be superimposed during interventional procedures with a fly display of the interior of an interesting organ.

    摘要翻译: 本发明涉及一种用于将2D放射线图像与从3D图像数据记录获得的图像合并的装置,具有存储2D放射线图像和3D图像数据记录的存储单元,分割单元,其将 来自3D图像数据记录的空心器官,将2D放射线图像与3D图像数据记录注册的登记单元,将2D放射线图像的像素反投影到分割表面上的背投影单元,考虑到 2D放射线图像的投影几何图像和配准,以及图像合并单元,其使用后投影像素从分割表面生成表面的虚拟内窥镜视图。 该装置主要允许在介入手术过程中叠加2D放射成像图像,并显示有趣器官内部的飞行显示。

    Evaluation method for mapping the myocardium of a patient
    66.
    发明授权
    Evaluation method for mapping the myocardium of a patient 有权
    用于绘制患者心肌的评估方法

    公开(公告)号:US08023707B2

    公开(公告)日:2011-09-20

    申请号:US12079142

    申请日:2008-03-25

    IPC分类号: G06K9/00 A61B6/00

    摘要: The invention relates to an evaluation method for mapping the myocardium of a patient, in particular the automated, functional evaluation, for instance the heart perfusion, in angiographic series with the steps: recording a series of angiographic recordings directly after administering a contrast agent to the patient; determining a reference area in an angiographic recording; determining a trend pattern of the contrast agent as a reference curve within the reference area from the series of angiographic recordings; obtaining trend patterns of the contrast agent from all areas of the angiographic recordings; determining the correlation between the trend patterns and the reference curve as a measure for the interrelationship between statistical variables, comparison with stored reference curve; comparison of the correlation coefficient with a threshold value; and reproduction of a marker identifying the myocardium.

    摘要翻译: 本发明涉及用于映射患者心肌的评估方法,特别是血管造影系列中的自动功能评估(例如心脏灌注),其步骤为:在将造影剂施用于患者之后直接记录一系列血管造影记录 患者; 确定血管造影记录中的参考区域; 确定造影剂的趋势图案作为来自该系列血管造影记录的参考区域内的参考曲线; 从血管造影记录的所有区域获得造影剂的趋势图; 确定趋势模式和参考曲线之间的相关性,作为统计变量之间相互关系的度量,与存储的参考曲线进行比较; 相关系数与阈值的比较; 以及识别心肌的标记物的繁殖。

    Method for locating a medical instrument during an intervention performed on the human body
    68.
    发明授权
    Method for locating a medical instrument during an intervention performed on the human body 有权
    在对人体进行的干预中定位医疗器械的方法

    公开(公告)号:US07778690B2

    公开(公告)日:2010-08-17

    申请号:US11805215

    申请日:2007-05-22

    IPC分类号: A61B5/05 H01J35/00

    摘要: The invention relates to a method for locating a medical instrument during an intervention performed on the human body using an X-ray image recording system and an electromagnetic locating system whose systems of coordinates have been or will be mutually registered, with a first item of positional information about the instrument being obtained continuously by means of the locating system and in each case two two-dimensional X-ray images positioned at an angle to each other being intermittently recorded by means of the X-ray image recording system, from which images a second item of positional information about the instrument is determined and compared with the first item of positional information, after which the first item of positional information will be corrected depending on the comparison result taking account of the second item of positional information obtained from the X-ray images.

    摘要翻译: 本发明涉及一种用于在使用X射线图像记录系统对人体进行的干预期间定位医疗器械的方法以及其坐标系统已经或将要相互注册的电磁定位系统,其中第一项位置 关于通过定位系统连续获得的仪器的信息,并且在每种情况下,通过X射线图像记录系统间歇地记录彼此成角度定位的两个二维X射线图像,图像a 确定与仪器相关的位置信息的第二项,并将其与位置信息的第一项进行比较,之后根据从X轴获得的位置信息的第二项目考虑的比较结果来修正位置信息的第一项, 射线图像。

    Operating method for a swiveling polyplanar imaging system for time-resolved imaging of an object being examined
    69.
    发明申请
    Operating method for a swiveling polyplanar imaging system for time-resolved imaging of an object being examined 有权
    用于正在检查的物体的时间分辨成像的旋转多面成像系统的操作方法

    公开(公告)号:US20090252287A1

    公开(公告)日:2009-10-08

    申请号:US12383422

    申请日:2009-03-24

    IPC分类号: H05G1/60 G06T15/00 G06T17/00

    摘要: An operating method for a polyplanar imaging system for time-resolved imaging of an object is provided. First and second data records are recorded at a fan angle β from different angular positions by a first and second imaging planes arranged at an offset angle γ relative to each other and swiveled through an angle of at least φ=180°+β. A third data record is created by selecting projection images from the first data record beginning from a starting angle α and from the second data record so that the third data record covers an angular range of at least φ. Three-dimensional images are reconstructed based on the third data record. The starting angle α is varied for continuously creating the third data record until α has attained its final value. The contrast of projection images in the third data record or of three-dimensional images is evaluated.

    摘要翻译: 提供了一种用于物体的时间分辨成像的多平面成像系统的操作方法。 第一和第二数据记录以相对于彼此以偏移角γ布置并且旋转至少φ180°+β的角度的第一和第二成像平面从不同角度位置以扇形角度β记录。 通过从起始角α和第二数据记录开始从第一数据记录中选择投影图像,使得第三数据记录覆盖至少phi的角度范围来创建第三数据记录。 基于第三数据记录重建三维图像。 变化的起始角度α用于连续创建第三数据记录,直到α达到其最终值。 评估第三数据记录或三维图像中的投影图像的对比度。

    Device for recording electrophysiological signals and for displaying the signals or signal information elements which are derived therefrom
    70.
    发明授权
    Device for recording electrophysiological signals and for displaying the signals or signal information elements which are derived therefrom 失效
    用于记录电生理信号并显示从其导出的信号或信号信息元素的装置

    公开(公告)号:US07596406B2

    公开(公告)日:2009-09-29

    申请号:US11347549

    申请日:2006-02-03

    IPC分类号: A61B5/44

    CPC分类号: A61B5/044 A61B5/0422

    摘要: Device for recording electrophysiological signals and for displaying the signals or signal information elements which are derived therefrom, comprising a catheter which includes a plurality of electrodes arranged in a distributed manner for signal recording and a rendition device for displaying the signals or the individual signal information elements which relate to the respective electrodes and are derived from the signals, wherein the signals or the signal information elements can be displayed in a display which is modeled on the geometric arrangement of the electrodes at the catheter or on the geometric arrangement of the electrodes during the signal recording.

    摘要翻译: 用于记录电生理信号并用于显示由其导出的信号或信号信息元素的装置,包括导管,该导管包括以分布式布置用于信号记录的多个电极,以及用于显示信号或各个信号信息元素的再现装置 其涉及各个电极并且从信号导出,其中信号或信号信息元素可以显示在显示器中,该显示器被建模在导管处的电极的几何排列上或在电极的几何排列期间 信号记录。