System and method for decomposed temporal filtering for X-ray guided intervention application
    2.
    发明授权
    System and method for decomposed temporal filtering for X-ray guided intervention application 有权
    用于X射线引导干预应用的分解时间滤波的系统和方法

    公开(公告)号:US08355557B2

    公开(公告)日:2013-01-15

    申请号:US12571487

    申请日:2009-10-01

    IPC分类号: G06K9/00 A61B6/02 A61B6/00

    摘要: A method for temporally filtering medical images during a fluoroscopy guided intervention procedure includes providing a mask image, a fluoroscopy intervention image acquired at a current time during a medical intervention procedure, forming a subtraction image by subtracting the mask image from the intervention image, calculating a motion image of a moving structure in the subtraction image, forming a residual image by subtracting the motion image from the subtraction image, temporally filtering the residual image with a filtered image from a previous time, and adding the motion image to the temporally filtered residual image.

    摘要翻译: 一种在荧光透视引导介入手术过程中对医学图像进行临时过滤的方法包括提供掩模图像,在医疗介入过程中当前时间获取的荧光透视干预图像,通过从干预图像中减去掩模图像形成减影图像, 在减法图像中的运动结构的运动图像,通过从减法图像中减去运动图像形成残差图像,并用先前时间用滤波图像对剩余图像进行时间滤波,并将运动图像与时间滤波残差图像相加 。

    Method for operating an x-ray diagnostic apparatus for determining quality values
    3.
    发明授权
    Method for operating an x-ray diagnostic apparatus for determining quality values 有权
    用于操作用于确定质量值的x射线诊断装置的方法

    公开(公告)号:US07826651B2

    公开(公告)日:2010-11-02

    申请号:US12401295

    申请日:2009-03-10

    IPC分类号: G06K9/00

    摘要: A method for checking an x-ray diagnostic apparatus is provided. Fluoroscopic series of x-ray images of a technical phantom are digitally acquired and stored. Difference between a dynamic image and a background image is calculated. A measuring field is predicted. Priori information about the shape of a clinically relevant object is determined. Hough transformation on a gray value image corresponding to the difference is applied. Contrast of the object from the Hough-transformed gray value image is determined. A square of the determined contrast is calculated. A noise variance is calculated by determining a sum of a noise variance of a homogenous image region and a variance of the background image. A contrast-to-noise ratio of the determined contrast and the calculated noise variance is determined. A square of the contrast-to-noise ratio is dynamically averaged. A Clinical Relevant Fluoroscopy Performance index for the x-ray diagnostic apparatus is determined.

    摘要翻译: 提供了一种用于检查x射线诊断装置的方法。 数字获取和存储技术幻像的荧光系列X射线图像。 计算动态图像和背景图像之间的差异。 预测测量场。 确定关于临床相关对象的形状的优先信息。 应用与差异对应的灰度值图像上的霍夫变换。 确定来自霍夫变换灰度值图像的对象的对比度。 计算确定的对比度的平方。 通过确定均匀图像区域的噪声方差和背景图像的方差的和来计算噪声方差。 确定所确定的对比度和所计算的噪声方差的对比噪声比。 动态平均对比噪声比的平方。 确定X线诊断仪的临床相关荧光检查性能指标。

    Method for providing variously processed image data and x-ray image system
    4.
    发明申请
    Method for providing variously processed image data and x-ray image system 有权
    用于提供各种处理的图像数据和x射线图像系统的方法

    公开(公告)号:US20090257637A1

    公开(公告)日:2009-10-15

    申请号:US12310940

    申请日:2007-09-20

    IPC分类号: G06K9/00

    摘要: Modern image processing systems for the postprocessing of X-ray images require a large number of input parameters and take a great deal of time. So that calculations do not need to be made sequentially for different sets of input parameters, parallel processors are used, in which the same image processing program is executed in each case, but with different input parameters in each case. A large number of processed X-ray images is thus obtained, which in particular can also be displayed simultaneously. From the multiple processed x-ray images, a repeated postprocessing of a processed x-ray image can take place by mixing.

    摘要翻译: 用于后期处理X射线图像的现代图像处理系统需要大量的输入参数并花费大量的时间。 因此,对于不同的输入参数集,不需要依次进行计算,因此使用并行处理器,其中在每种情况下执行相同的图像处理程序,但是在每种情况下具有不同的输入参数。 因此获得了大量的经处理的X射线图像,其特别地也可以同时显示。 从多个经处理的X射线图像中,可以通过混合来进行经处理的X射线图像的重复后处理。

    Image reconstruction method and computer program product
    5.
    发明授权
    Image reconstruction method and computer program product 有权
    图像重建方法和计算机程序产品

    公开(公告)号:US07148903B2

    公开(公告)日:2006-12-12

    申请号:US10778381

    申请日:2004-02-13

    IPC分类号: G09G5/00

    摘要: In a method for reconstructing a three-dimensional subject a number of projections of a three-dimensional subject is acquired by an acquisition arrangement. Each projection is a dataset of spatially contiguous data values. The projections are provided to a computer. A first part of the data values of the projections is replaced by new data values, and a second part of the data values of the projections remains unchanged. Thus changed projections are generated, using which a reconstruction of an image of the subject is determined by the computer.

    摘要翻译: 在重建三维对象的方法中,通过采集装置获取三维对象的多个投影。 每个投影是空间连续数据值的数据集。 将投影提供给计算机。 投影的数据值的第一部分被新的数据值替代,并且投影的数据值的第二部分保持不变。 因此,产生了由计算机确定被摄体图像的重建的改变的投影。

    Method for determining a position for at least one semi-transparent diaphragm and associated facility
    6.
    发明授权
    Method for determining a position for at least one semi-transparent diaphragm and associated facility 有权
    用于确定至少一个半透明隔膜和相关设施的位置的方法

    公开(公告)号:US08977015B2

    公开(公告)日:2015-03-10

    申请号:US12008942

    申请日:2008-01-15

    摘要: The invention relates to a method for determining a position for at least one semi-transparent diaphragm during a radiological observation of a body region of a patient by means of a radiological facility, in particular during an observation accompanying an interventional measure, comprising: producing at least one radiological image recording and/or a sequence of image recordings by means of the radiological facility; analyzing the image recording and/or the sequence of image recordings by means of automatic image processing by a computing facility for identifying less absorbent image regions which may be present; and automatically determining the position for the at least one semi-transparent diaphragm as a function of the image analysis result by means of the computing facility.

    摘要翻译: 本发明涉及一种用于在通过放射学设备放射学观察患者身体区域期间确定至少一个半透明隔膜的位置的方法,特别是在伴随介入措施的观察期间,包括:在 通过放射设备至少一个放射图像记录和/或图像记录序列; 通过用于识别可能存在的较少吸收图像区域的计算设备的自动图像处理来分析图像记录和/或图像记录序列; 并且通过所述计算设备自动地确定所述至少一个半透明膜片的位置作为所述图像分析结果的函数。

    Method for the improved display of co-registered 2D-3D images in medical imaging
    10.
    发明授权
    Method for the improved display of co-registered 2D-3D images in medical imaging 失效
    用于改进在医学成像中共同注册的2D-3D图像的显示的方法

    公开(公告)号:US08078000B2

    公开(公告)日:2011-12-13

    申请号:US11492432

    申请日:2006-07-25

    IPC分类号: G06K9/40 G06K9/00

    摘要: The present invention relates to a method, which assists a doctor for instance in orientation in 2D fluoroscopy images. The present invention relates here to a method for displaying co-registered 2D-3D images in medical imaging, comprising the following steps: determine a 3D or 2D projection which is congruent with a 2D image from a 3D image data set, and overlaid display of the 2D image with the 3D or 2D projection on a monitor, characterized in that the two image parts of the two overlaid images can be adjusted and a shift in the two overlaid images which can be adjusted in at least one direction is enabled.

    摘要翻译: 本发明涉及一种辅助医生例如2D荧光透视图像中的取向的方法。 本发明涉及用于在医学成像中显示共同注册的2D-3D图像的方法,包括以下步骤:从3D图像数据集确定与2D图像一致的3D或2D投影,并重叠显示 具有在监视器上的3D或2D投影的2D图像,其特征在于可以调整两个重叠图像的两个图像部分,并且能够在至少一个方向上调整的两个重叠图像中的偏移。