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    • 2. 发明授权
    • Mask construction for cardiac subtraction
    • 心脏减量的面罩构造
    • US08498463B2
    • 2013-07-30
    • US13058205
    • 2009-08-06
    • Raoul FlorentVincent Maurice Andre AuvrayOdile Bonnefous
    • Raoul FlorentVincent Maurice Andre AuvrayOdile Bonnefous
    • G06K9/00
    • A61B6/504A61B6/481A61B6/484A61B6/507A61B6/5264
    • To provide an improved method for achieving DSA images where the effect of residual motions in cardiac DSA during the perfusion phase is reduced and in order to display subtracted images containing less motion artefacts, a method of performing digital subtraction angiography DSA in an imaging apparatus comprises the steps of generating a first image sequence of mask images (10) of a subject to be examined, generating at least one first contrast image (22) at a first phase (16) whereby in the first contrast image part of the subject has a different contrast than in said first image sequence, subtracting the mask images (10) from the at least one first contrast image (22) generating a first DSA image sequence (24), subtracting the DSA images of the first DSA image sequence (24) from the first contrast image (22) within the first phase (16) generating a sequence of extended mask images (32); generating a second contrast image (34) with the imaging system at a second phase (18), said second phase (18) being separated from the first phase (16) by a predetermined phase dividing time limit (20), subtracting the images of the sequence of the extended mask images (32) from the second contrast image (34) generating a second DSA image sequence (38), displaying the second DSA image sequence (38) on a display (28).
    • 为了提供一种用于实现DSA图像的改进方法,其中在灌注阶段期间心脏DSA中的残留运动的影响减小,并且为了显示包含较少运动伪影的减影图像,在成像设备中执行数字减影血管造影DSA的方法包括 产生待检查对象的掩模图像(10)的第一图像序列的步骤,在第一阶段(16)产生至少一个第一对比图像(22),由此在对象的第一对比图像部分中具有不同的 与所述第一图像序列相比,从产生第一DSA图像序列(24)的至少一个第一对比图像(22)中减去掩模图像(10),从第一DSA图像序列(24)的DSA图像中减去第一DSA图像序列 第一相位(16)内的第一对比度图像(22)产生延伸的掩模图像序列(32); 在第二阶段(18)产生具有成像系统的第二对比度图像(34),所述第二相位(18)与预定的相位分割时间限制(20)从第一相位(16)分离,减去图像 来自第二对比度图像(34)的扩展掩模图像(32)的序列生成第二DSA图像序列(38),在显示器(28)上显示第二DSA图像序列(38)。
    • 3. 发明申请
    • MASK CONSTRUCTION FOR CARDIAC SUBTRACTION
    • 用于心脏吸收的掩蔽结构
    • US20110305378A1
    • 2011-12-15
    • US13058205
    • 2009-08-06
    • Raoul FlorentVincent Maurice Andre AuvrayOdile Bonnefous
    • Raoul FlorentVincent Maurice Andre AuvrayOdile Bonnefous
    • G06K9/00
    • A61B6/504A61B6/481A61B6/484A61B6/507A61B6/5264
    • To provide an improved method for achieving DSA images where the effect of residual motions in cardiac DSA during the perfusion phase is reduced and in order to display subtracted images containing less motion artefacts, a method of performing digital subtraction angiography DSA in an imaging apparatus comprises the steps of generating a first image sequence of mask images (10) of a subject to be examined, generating at least one first contrast image (22) at a first phase (16) whereby in the first contrast image part of the subject has a different contrast than in said first image sequence, subtracting the mask images (10) from the at least one first contrast image (22) generating a first DSA image sequence (24), subtracting the DSA images of the first DSA image sequence (24) from the first contrast image (22) within the first phase (16) generating a sequence of extended mask images (32); generating a second contrast image (34) with the imaging system at a second phase (18), said second phase (18) being separated from the first phase (16) by a predetermined phase dividing time limit (20), subtracting the images of the sequence of the extended mask images (32) from the second contrast image (34) generating a second DSA image sequence (38), displaying the second DSA image sequence (38) on a display (28).
    • 为了提供一种用于实现DSA图像的改进方法,其中在灌注阶段期间心脏DSA中的残留运动的影响减小,并且为了显示包含较少运动伪影的减影图像,在成像设备中执行数字减影血管造影DSA的方法包括 产生待检查对象的掩模图像(10)的第一图像序列的步骤,在第一阶段(16)产生至少一个第一对比图像(22),由此在对象的第一对比图像部分中具有不同的 与所述第一图像序列相比,从产生第一DSA图像序列(24)的至少一个第一对比图像(22)中减去掩模图像(10),从第一DSA图像序列(24)的DSA图像中减去第一DSA图像序列 第一相位(16)内的第一对比度图像(22)产生延伸的掩模图像序列(32); 在第二阶段(18)产生具有成像系统的第二对比度图像(34),所述第二相位(18)与预定的相位分割时间限制(20)从第一相位(16)分离,减去图像 来自第二对比度图像(34)的扩展掩模图像(32)的序列生成第二DSA图像序列(38),在显示器(28)上显示第二DSA图像序列(38)。
    • 7. 发明申请
    • DYNAMIC NORMALIZATION OF DATA FOR PERFUSION COMPARISON AD QUANTIFICATION
    • 用于灌注比较的AD数据的数据的动态正规化(DYNAMIC NORMALIZATION OF DATA FOR PERFUSION COMPARISON AD QUANTIFICATION)
    • US20140005538A1
    • 2014-01-02
    • US14004195
    • 2012-02-28
    • Raoul FlorentCecile DufourVincent AuvrayOdile Bonnefous
    • Raoul FlorentCecile DufourVincent AuvrayOdile Bonnefous
    • A61B6/00
    • A61B6/481A61B6/12A61B6/4441A61B6/464A61B6/486A61B6/503A61B6/504A61B6/507A61B6/5217A61B6/5235A61B6/583G06T5/008G06T5/50G06T7/0012G06T2207/10116G06T2207/30104
    • The invention relates to x-ray imaging technology as well as image post-processing. Particularly, the present invention relates to post-processing of perfusion image data acquired by an x-ray imaging apparatus by absolutely or relatively normalizing perfusion image data to allow a preferred comparison of the image data, both with regard to different acquisitions as well as different patients. To allow normalization of perfusion image data, it may be desirable to know the amount of contrast agent injected, which remains in a coronary. Subsequently, image parameters may be adapted or normalized based on the known amount of contrast agent within the coronary for normalization of perfusion image data. To obtain a precise amount of injected contrast agent, the injected volume of contrast agent flowing through a defined region or section of a vessel may be estimated. Said injected volume of contrast agent may thus be deduced from the estimation of the total volume flow at this location. Accordingly, a method (10) is provided for dynamic normalization of data for perfusion comparison and quantification, comprising the steps of determining (20) a total volume flow or an amount of a contrast agent in a blood vessel and normalizing (34) perfusion data based on the determined total volume flow or amount of contrast agent.
    • 本发明涉及X射线成像技术以及图像后处理。 特别地,本发明涉及通过绝对或相对规范化灌注图像数据来获得的由X射线成像设备获取的灌注图像数据的后处理,以允许针对不同采集以及不同的采集的图像数据的优选比较 耐心。 为了允许灌注图像数据的归一化,可能需要知道留在冠状动脉中的造影剂的注入量。 随后,可以基于冠状动脉内的已知量的造影剂来调整或归一化图像参数,以用于灌注图像数据的归一化。 为了获得精确量的注射造影剂,可以估计流过容器的限定区域或部分的造影剂的注射体积。 因此,可以从该位置处的总体积流量的估计推断所述注射量的造影剂。 因此,提供了一种用于动态规范用于灌注比较和定量的数据的方法(10),包括以下步骤:确定(20)血管中的总体积流量或造影剂的量并使(34)灌注数据 基于确定的总体积流量或造影剂的量。
    • 8. 发明申请
    • Method and Device For Determining the Motion Vector of Tissues in a Biological Medium
    • 用于确定生物介质中组织运动载体的方法和装置
    • US20080167554A1
    • 2008-07-10
    • US11814087
    • 2006-01-18
    • Odile Bonnefous
    • Odile Bonnefous
    • A61B8/08
    • A61B8/08A61B8/0883A61B8/488Y10S128/916
    • The invention relates to a method of determining the motion vector of tissues in a biological medium. This method comprises the steps of:—acquiring a sequence of echographical images at a given repetition rate,—digitalising said echographical images and storing the so-digitalised images,—defining a digital pseudo echographical pulse,—effecting in a plurality of directions a convolution of said digital pseudo echographical pulse with said digitalised images and deducing therefrom at each point of said medium a plurality of pseudo echographical signals associated with said plurality of directions,—determining an estimate over said plurality of directions of the phase shift between two successive pseudo echographical signals and deducing therefrom the magnitude and the direction of said motion vector.
    • 本发明涉及确定生物培养基中组织的运动矢量的方法。 该方法包括以下步骤: - 以给定的重复率获取一系列回波图像, - 对所述回波图像进行数字化并存储所述数字化图像,定义数字伪回波脉冲, - 在多个方向上影响卷积 所述数字伪回波脉冲与所述数字化图像一起从所述介质的每个点处推导出与所述多个方向相关联的多个伪回波信号,确定在两个连续的伪超声波相位之间的相移的所述多个方向上的估计 信号并从其推导出所述运动矢量的大小和方向。
    • 9. 发明授权
    • Phased array acoustic system for 3D imaging of moving parts
    • 用于运动部件3D成像的相控阵声学系统
    • US07347820B2
    • 2008-03-25
    • US10533029
    • 2003-10-31
    • Odile Bonnefous
    • Odile Bonnefous
    • A61B8/00
    • G01S15/8925A61B8/483G01S7/52038G01S7/5206G01S7/52068G01S7/52071G01S7/52073G01S7/52095G01S15/8981G01S15/8993
    • The invention relates to an ultrasound phased array imaging system comprising: probe (10) with a 2-D array of transducer elements (12) for acquiring 3-D ultrasound data of a volume of a body, including moving tissue and fluid flow; a beamforming system (10, 12, 14, 16) for emitting and receiving in real time ultrasound beams in said volume, which provides, in real time and in 3-D, more than one spatial receive beams signals for each transmission beam within an ensemble length of more than two temporal samples, among which the receive flow beam signals and the receive tissue beam signals are substantially temporally uncorrelated but spatially correlated; separation means (30) for processing in real time the receive beams signals, comprising adaptive spatial tissue filtering means using simultaneously more than one spatial receive beam signals acquired in 3-D within the ensemble length of more than two temporal samples, which separation means analyzes temporal variations of the respective successive receive signals and extracts flow receive beam signals from spatial combinations of receive beam signals; processing means (40, 50) and display means (62, 60) for processing flow Doppler signals and for displaying images based on said processed flow Doppler signals.
    • 本发明涉及一种超声相控阵成像系统,包括:具有用于获取身体体积的三维超声数据的换能器元件(2D)的二维阵列的探针(10),包括运动的组织和流体流动; 波束形成系统(10,12,14,16),用于在所述体积中实时地发射和接收超声波束,其实时地和三维地提供多于一个空间接收波束的信号,每个发射波束在一个 多于两个时间样本的集合长度,其中接收流束信号和接收组织束信号基本上在时间上不相关但在空间上相关; 分离装置(30),用于实时处理接收波束信号,所述接收波束信号包括自适应空间组织滤波装置,所述自适应空间组织滤波装置同时使用在多于两个时间样本的整体长度内的3-D中获取的多于一个的空间接收波束信号, 各个连续接收信号的时间变化,并从接收波束信号的空间组合中提取流接收波束信号; 处理装置(40,50)和显示装置(62,60),用于处理流动多普勒信号并用于基于所述处理的流量多普勒信号显示图像。
    • 10. 发明授权
    • Ultrasonic image processing method and system for displaying a composite image sequence of an artery segment
    • 用于显示动脉段的复合图像序列的超声图像处理方法和系统
    • US06647135B2
    • 2003-11-11
    • US09732195
    • 2000-12-07
    • Odile Bonnefous
    • Odile Bonnefous
    • G06K900
    • G01S15/8979A61B8/06A61B8/13G01S7/52073G01S7/52074Y10S128/916
    • The invention concerns an ultrasonic image processing method for displaying a composite sequence of images of an artery segment with indication of blood flow velocity and wall movements in function of the cardiac cycle, comprising steps of: forming, at a first rate, a first sequence (131) of blood flow velocity color-coded images and forming, at a second rate, a second sequence (231) of images with wall movement graphics; and constructing said composite image sequence (361) by determining a first set of temporal markers (n1,n2), related to the cardiac cycle, in the first image sequence as the minimum points of a curve (P(n)) of the number of the colored points per image in function of the image instants, determining a second set of temporal markers (k1,k2), related to the same cardiac cycle, in the second image sequence as the minimum points of a curve (D(k)) of the arterial mean dilation in function of the image instants, and by superposing the first and second image sequences by synchronizing the respective markers of said two sets, and displaying the composite image sequence. The invention also relates to an ultrasonic examination imaging system carrying out said method.
    • 本发明涉及一种超声波图像处理方法,用于显示具有心动周期功能的血流速度和壁运动指示的动脉段的复合序列,包括以下步骤:以第一速率形成第一序列( 131)和以第二速率形成具有壁移动图形的图像的第二序列(231);以及通过确定第一组时间标记(n1)来构建所述复合图像序列(361) ,n2)与第一图像序列相关,作为图像时间函数中每个图像的着色点的数量的曲线(P(n))的最小点,确定第二组时间 在第二图像序列中与相同心动周期相关的标记(k1,k2)作为图像时间函数的动脉平均扩张的曲线(D(k))的最小点,并且通过将第一和 第二个图像序列同步 对所述两组的各个标记进行分组,并显示合成图像序列。本发明还涉及执行所述方法的超声波检查成像系统。