Device for carrying out intravascular examinations
    61.
    发明申请
    Device for carrying out intravascular examinations 审中-公开
    用于进行血管内检查的装置

    公开(公告)号:US20060293594A1

    公开(公告)日:2006-12-28

    申请号:US11473400

    申请日:2006-06-23

    申请人: Thomas Redel

    发明人: Thomas Redel

    IPC分类号: A61B5/05

    摘要: The invention relates to a device for carrying out intravascular examinations, with which image data generated by an intravascular imaging device and electrocardiography signals measured by an electrocardiography device are displayed by means of a device for simultaneously displaying in subareas of a monitor.

    摘要翻译: 本发明涉及一种用于进行血管内检查的装置,通过血管内成像装置产生的图像数据和由心电图设备测量的心电图信号通过用于同时显示在监视器的子区域中的装置来显示。

    X-ray recording with superimposed planning information

    公开(公告)号:US10420478B2

    公开(公告)日:2019-09-24

    申请号:US15684609

    申请日:2017-08-23

    申请人: Thomas Redel

    发明人: Thomas Redel

    摘要: A method for operating an x-ray device, (e.g., a fluoroscope), is described herein. The method includes: creating planning information for a therapeutic intervention into a body vessel segment based on a reconstruction of the body vessel segment; providing the planning information to a processing unit of the x-ray device; providing the reconstruction of the body vessel segment to the processing unit; creating a recording of the body vessel segment introduced into a recording region of the x-ray device; registering the reconstruction of the body vessel segment with the body vessel segment in the recording region of the x-ray device; displaying the recording of the body vessel segment on a display device of the x-ray device; and superimposing a graphical representation of the planning information on the recording displayed on the display device, in order to increase the efficiency of the therapeutic intervention into the body vessel segment.

    GENERATION OF A THREE-DIMENSIONAL RECONSTRUCTION OF A BODY PART BY AN X-RAY MACHINE

    公开(公告)号:US20170347985A1

    公开(公告)日:2017-12-07

    申请号:US15614838

    申请日:2017-06-06

    IPC分类号: A61B6/00

    摘要: The disclosure relates to an X-ray machine and a method for the operation of the X-ray machine for generation of a three-dimensional reconstruction of a body part. The method includes supplying a first X-ray capture of the body part; an automatic analysis of the first X-ray capture; an evaluation of the suitability of at least one further capture angle by the computing unit in the light of a result from the automatic analysis; setting of a second capture angle on the X-ray machine, either automatically by the computing unit or manually by an operator; a manually controlled approach to the set second capture angle by a capture unit of the X-ray machine; and capture of the second X-ray capture from the approached second capture angle by the capture unit to provide an improved method for operation of an X-ray machine for generation of a three-dimensional reconstruction of a body part.

    Apparatus for X-ray imaging for projection radiography and computed tomography, and method for X-ray imaging
    64.
    发明授权
    Apparatus for X-ray imaging for projection radiography and computed tomography, and method for X-ray imaging 有权
    用于X射线成像用于投影摄影和计算机断层扫描的装置,以及用于X射线成像的方法

    公开(公告)号:US09153411B2

    公开(公告)日:2015-10-06

    申请号:US13564909

    申请日:2012-08-02

    CPC分类号: H01J35/30 A61B6/03 A61B6/4435

    摘要: An X-ray imaging apparatus has at least one X-ray image system rotatable about an examination volume. The X-ray image system is controlled such that during a continuous rotation of the system, at least one 2D projection image is recorded. An image generation facility generates the 2D projection image from the measured data. The X-ray source includes an X-ray focus which can be changed in terms of position, which, during the recording of the 2D projection image, moves counter to the direction of rotation of the X-ray image system such that its spatial position in a fixed coordinate system does not change. The X-ray detector records several 2D partial images, from which the 2D projection image is calculated with the rotational movement of the X-ray detector being at least approximately compensated. The 2D projection images have significantly reduced image blur.

    摘要翻译: X射线成像装置具有能够围绕检查体积旋转的至少一个X射线图像系统。 控制X射线图像系统,使得在系统的连续旋转期间,记录至少一个2D投影图像。 图像生成设备根据测量数据生成2D投影图像。 X射线源包括可以在2D投影图像的记录期间相对于X射线图像系统的旋转方向移动的位置方面改变的X射线焦点,使得其X射线焦点的空间位置 在固定的坐标系中不改变。 X射线检测器记录几个2D部分图像,由X射线检测器的旋转运动至少近似地补偿2D计算图像。 2D投影图像显着减少图像模糊。

    BLOOD FLOW COMPUTATION IN VESSELS WITH IMPLANTED DEVICES
    66.
    发明申请
    BLOOD FLOW COMPUTATION IN VESSELS WITH IMPLANTED DEVICES 有权
    血管流动计算在具有植入装置的血管中

    公开(公告)号:US20130191100A1

    公开(公告)日:2013-07-25

    申请号:US13744857

    申请日:2013-01-18

    IPC分类号: G06F19/00

    摘要: A method for modeling blood flow through a flow diverter includes receiving a medical image containing blood vessels. Vessel geometry is extracted from the received medical image. Inlets and outlets are tagged within the extracted vessel geometry. A desired flow diverter is selected. A model of the selected flow diverter is generated within the imaged blood vessel, the model representing the flow diverter as a tube having a porous surface characterized by a viscous resistance and an inertial resistance. A course of blood flow though the flow diverter is predicted based on the generated model, the extracted vessel geometry, and the tagged inlets and outlets.

    摘要翻译: 通过流转向器对血液流动进行建模的方法包括接收包含血管的医学图像。 从接收到的医学图像中提取血管几何。 进口和出口在提取的容器几何中被标记。 选择所需的分流器。 所选流量分流器的模型在成像的血管内产生,该模型表示流量分流器为具有以粘性阻力和惯性阻力为特征的多孔表面的管。 基于生成的模型,提取的血管几何形状和标记的入口和出口预测通过流量分流器的血液流动过程。

    Measuring blood volume with C-arm computed tomography
    67.
    发明授权
    Measuring blood volume with C-arm computed tomography 有权
    用C臂计算机断层扫描测量血容量

    公开(公告)号:US08285014B2

    公开(公告)日:2012-10-09

    申请号:US12061357

    申请日:2008-04-02

    IPC分类号: G06K9/00 H05G1/64

    摘要: A system and method of obtaining perfusion data for cerebral tissue is described. The system includes a C-arm X-ray device and a computing system configured to obtain sets of rotational projection X-ray data suitable for reconstructing 3D voxel data sets. A first data set is obtained of the patient, and then contrast material is injected into the vascular system to obtain a second 1 data set. A first voxel data set is subtracted from the second voxel data set, and the resultant data set is processed so as to segment the contrast-enhanced vasculature from the remaining data. The segmented voxels are subtracted from the resultant voxel data set, so as to yield a functional data set representing the difference between the attenuation of the tissues after administering contrast agent and the tissues prior to administering the contrast agent, without the contrast enhanced vasculature. The attenuation of the functional data set represents the perfusion or cerebral blood volume (CBV).

    摘要翻译: 描述了获得脑组织灌注数据的系统和方法。 该系统包括C臂X射线装置和被配置为获得适于重建3D体元数据集的旋转投影X射线数据的组的计算系统。 获得患者的第一数据集,然后将造影材料注入血管系统以获得第二个1数据集。 从第二体素数据集中减去第一体素数据集,并且处理结果数据集,以便从剩余数据中分割对比度增强的脉管系统。 从所得到的体元数据集中减去分割体素,从而产生表示施用造影剂之前的组织的衰减与施用造影剂之前的组织之间的差异的功能数据集,而没有对比度增强的脉管系统。 功能数据集的衰减表示灌注或脑血容量(CBV)。

    Determination method for a reinitialization of a temporal sequence of fluoroscopic images of an examination region of an examination object
    69.
    发明申请
    Determination method for a reinitialization of a temporal sequence of fluoroscopic images of an examination region of an examination object 有权
    用于检查对象的检查区域的荧光透视图像的时间序列的重新初始化的确定方法

    公开(公告)号:US20100329526A1

    公开(公告)日:2010-12-30

    申请号:US12825369

    申请日:2010-06-29

    IPC分类号: G06K9/62

    摘要: A determination method for reinitialization of a temporal sequence of fluoroscopic images of an examination region of an examination object is provided. The examination region comprises a vascular system including arteries and/or veins. An acquisition time is assigned to each of the images representing a given distribution of a substance in the examination region at the acquisition time. A computer receives the temporal sequence of the images, determines an evaluation image corresponding spatially on a pixel-by-pixel basis to the images, and calculates a differential value between a pixel of the evaluation image at a time and a pixel at a preceding time during a time characteristic of the sequence. A reinitialization of the temporal sequence of the images is performed at a specific time and thereafter the determination method is started over and/or repeated. The specific time is determined as a function of at least one previously calculated differential value.

    摘要翻译: 提供了一种用于重新初始化检查对象的检查区域的荧光透视图像的时间序列的确定方法。 检查区域包括包括动脉和/或静脉的血管系统。 在采集时间将采集时间分配给表示检查区域中物质的给定分布的每个图像。 计算机接收图像的时间序列,确定在图像上逐像素地对应的评估图像,并计算一次评估图像的像素与前一时刻的像素之间的差分值 在序列的时间特征。 在特定时间执行图像的时间序列的重新初始化,此后,确定方法开始和/或重复。 确定具体时间作为至少一个先前计算的微分值的函数。

    Evaluation method for a temporal sequence of x-ray images
    70.
    发明申请
    Evaluation method for a temporal sequence of x-ray images 有权
    x射线图像的时间序列的评估方法

    公开(公告)号:US20080317323A1

    公开(公告)日:2008-12-25

    申请号:US12157356

    申请日:2008-06-10

    IPC分类号: G06K9/46

    摘要: A computer receives a temporal sequence of x-ray images of an examination region of an examination object. The examination region includes a blood vessel system and tissue supplied with blood. A detection time is assigned in each instance to the x-ray images. The x-ray images correspond locally with one another in terms of pixels and each display a distribution of a contrast agent in the examination region at the respective detection time. The computer determines the temporal course of the temporal derivation of the data values and/or of the average value of the data values of the pixels located in the evaluation region for at least one evaluation region which is standard for all x-ray images. It assigns a type to the evaluation region as a function hereof.

    摘要翻译: 计算机接收检查对象的检查区域的X射线图像的时间序列。 检查区域包括供血的血管系统和组织。 在每种情况下将检测时间分配给x射线图像。 X射线图像在像素上彼此局部对应,并且在相应的检测时间显示检查区域中造影剂的分布。 计算机确定对于对于所有X射线图像是标准的至少一个评估区域,数据值的时间推导的时间导航和/或位于评估区域中的像素的数据值的平均值的时间过程。 它作为一个函数为评估区域分配一个类型。