公开(公告)号：US07907217B2

公开(公告)日：2011-03-15

申请号：US11622736

申请日：2007-01-12

申请人： John Baumgart ,  Florian Vogt

发明人： John Baumgart ,  Florian Vogt

IPC分类号： H04N5/14

CPC分类号： G06T5/50 ,  G06T7/20 ,  G06T2207/20224

摘要： A system and method for calculating a pixel-shift vector that predicts the motion in dynamic image data and can be used to shift reference image data in order to generate a subtracted image with reduced motion artifacts. The pixel-shift vector is calculated based on displacement vectors that have been calculated based on past motion in the dynamic image data. One embodiment determines a virtual pixel-shift vector as a function of stored pixel-shift vectors that were previously determined as a function of a previously captured live frame. The virtual pixel-shift vector is a prediction of the location of the current live frame before the current live frame is captured. The mask frame is adjusted as a function of this virtual pixel-shift vector. The current live frame is then subtracted from the mask frame adjusted as a function of the virtual pixel-shift vector. The adjusted mask frame and the live frame will then overlap and the subtracted image will have reduced artifacts.

摘要翻译： 一种用于计算预测动态图像数据中的运动并可用于移动参考图像数据以便生成具有减少的运动伪像的减去图像的像素移动向量的系统和方法。 基于基于动态图像数据中的过去运动计算的位移矢量来计算像素移动矢量。 一个实施例确定虚拟像素移动向量作为先前被确定为先前捕获的实时帧的函数的存储的像素移位向量的函数。 虚拟像素移动向量是在捕获当前实时帧之前的当前实时帧的位置的预测。 作为该虚拟像素移动矢量的函数调整掩模框。 然后从作为虚拟像素移位向量的函数调整的掩码帧中减去当前的实时帧。 所调整的面罩框架和实时框架将重叠，并且减去的图像将具有减少的伪影。

公开(公告)号：US20110034801A1

公开(公告)日：2011-02-10

申请号：US12836602

申请日：2010-07-15

申请人： John Baumgart

发明人： John Baumgart

IPC分类号： A61B5/055 ,  G09G5/00

CPC分类号： A61B6/504 ,  A61B5/489 ,  A61B6/4441 ,  A61B6/463 ,  A61B6/5247 ,  A61B8/12 ,  A61B8/4416 ,  A61B8/463 ,  A61B8/5238

摘要： A system provides a single composite image including multiple medical images of a portion of patient anatomy acquired using corresponding multiple different types of imaging device. A display processor generates data representing a single composite display image including, a first image area showing a first image of a portion of patient anatomy acquired using a first type of imaging device, a second image area showing a second image of the portion of patient anatomy acquired using a second type of imaging device different to the first type. The first and second image areas include first and second markers respectively. The first and second markers identify an estimated location of the same corresponding anatomical position in the portion of patient anatomy in the first and second images respectively. A user interface enables a user to move at least one of, (a) the first marker in the first image and (b) the second marker in the second image, to correct the estimated location so the first and second markers identify the same corresponding anatomical position in the portion of patient anatomy.

摘要翻译： 系统提供单个复合图像，其包括使用相应的多种不同类型的成像装置获取的患者解剖结构的一部分的多个医学图像。 显示处理器生成表示单个复合显示图像的数据，包括：第一图像区域，示出使用第一类型的成像装置获取的患者解剖结构的一部分的第一图像;第二图像区域，其示出患者解剖结构部分的第二图像 使用与第一类型不同的第二类型的成像装置获取。 第一和第二图像区域分别包括第一和第二标记。 第一和第二标记分别在第一和第二图像中识别病人解剖结构部分中相同对应解剖位置的估计位置。 用户界面使得用户能够移动（a）第一图像中的第一标记和（b）第二图像中的第二标记中的至少一个，以校正估计位置，使得第一和第二标记识别相同的对应 患者解剖部位的解剖位置。

公开(公告)号：US07869637B2

公开(公告)日：2011-01-11

申请号：US11555754

申请日：2006-11-02

申请人： John Baumgart ,  Gerhard Litz

发明人： John Baumgart ,  Gerhard Litz

IPC分类号： G06K9/00 ,  G06K9/32 ,  G06K9/40

CPC分类号： G06T5/40 ,  A61B6/06 ,  A61B6/12 ,  G06T5/009 ,  G06T2207/10116

摘要： An X-ray diagnostic imaging system is disclosed that includes an X-ray source for controlling an X-ray beam radiated towards a patient under examination. The X-ray source includes an X-ray tube and X-ray collimator assembly. The system includes an-ray imaging device arranged for receiving the X-ray beam after is has passed through the patient to acquire latent image frames of a region of interest (ROI) of the patient's anatomy, and a system controller coupled to X-ray source and X-ray imaging device for controlling latent image frame acquisition and post-acquisition processing. The controlling includes controlling the X-ray imaging device and X-ray positioning, and collimator assembly operation. An image processing chain including an image processor coupled to the system controller, receives latent image frames from the X-ray imaging device for processing, including calculating a histogram from which pixels within a collimated area are removed. The improved histogram is used in post-acquisition processing such as a window level setting. An X-ray image processed by functions using the improved histogram is displayed by a display device coupled to the image processing chain.

摘要翻译： 公开了一种X射线诊断成像系统，其包括用于控制朝向被检查患者辐射的X射线束的X射线源。 X射线源包括X射线管和X射线准直器组件。 该系统包括被设置为在穿过患者之后接收X射线束以获取患者解剖结构的感兴趣区域（ROI）的潜像帧的射线成像装置，以及耦合到X射线的系统控制器 源和X射线成像装置，用于控制潜像采集和采集后处理。 该控制包括控制X射线成像装置和X射线定位以及准直器组装操作。 包括耦合到系统控制器的图像处理器的图像处理链接收来自X射线成像装置的处理的潜像帧，包括计算去除准直区域内的像素的直方图。 改进的直方图用于采集后处理，如窗口级别设置。 使用改进的直方图的功能处理的X射线图像由耦合到图像处理链的显示装置显示。

公开(公告)号：US20090257631A1

公开(公告)日：2009-10-15

申请号：US12408944

申请日：2009-03-23

申请人： John Baumgart

发明人： John Baumgart

IPC分类号： G06K9/00

CPC分类号： G06T5/50 ,  G06T2207/10121 ,  G06T2207/20224 ,  G06T2207/30104

摘要： A system reduces artifacts introduced by patient or table motion during generation of a composite image visualizing contrast agent flow. A system for generation of a composite medical image of vessel structure, includes an imaging device for acquiring multiple sequential images of vessel structure of a portion of patient anatomy in the presence of a contrast agent. An imaging processor aligns individual images of the multiple sequential images with a single particular mask image containing background detail of the portion of patient anatomy in the absence of contrast agent. The imaging processor forms data representing multiple digitally subtracted images by subtracting data representing the single particular mask image from aligned individual images of the multiple sequential images. The imaging processor associates different individual images of the multiple digitally subtracted images with different corresponding visual attributes and combines data representing the digitally subtracted images to form a composite image. A reproduction device presents the composite image to a user.

摘要翻译： 系统在生成可视化造影剂流的合成图像的同时减少由患者或桌子运动引入的伪像。 用于产生血管结构的复合医学图像的系统包括成像装置，用于在存在造影剂的情况下获取患者解剖结构部分的血管结构的多个顺序图像。 成像处理器将多个顺序图像的各个图像与包含在没有造影剂的患者解剖结构部分的背景细节的单个特定掩模图像对齐。 成像处理器通过从多个顺序图像的对齐的单独图像中减去表示单个特定掩模图像的数据来形成表示多个数字减影图像的数据。 成像处理器将多个数字减影图像的不同单独图像与不同的对应视觉属性相关联，并且组合表示数字相减图像的数据以形成合成图像。 复制设备将合成图像呈现给用户。

公开(公告)号：US20080158335A1

公开(公告)日：2008-07-03

申请号：US11610591

申请日：2006-12-14

申请人： John Baumgart

发明人： John Baumgart

IPC分类号： H04N7/14

CPC分类号： G06F3/0482 ,  G06F3/04886

摘要： A system for selecting an anatomical image for display includes a main image display displaying at least one anatomical image; a touch-screen display; a processing unit providing a selection of graphical directories of anatomical images; and a network configured to interface the main image display with the processing unit and configured to interface the touch-screen display with the processing unit. The system displays at least one of the selection of graphical directories of anatomical images on the touch-screen display and enables selecting at least one of the selection of graphical directories from the processor without removing the anatomical image from the main image display. The touch-screen display includes a button enabling interchangeable display of the anatomical image and the selection of graphical directories of anatomical images. The system enables selecting at least one anatomical image by touching the corresponding image in the directory displayed on the touch-screen display.

摘要翻译： 用于选择用于显示的解剖图像的系统包括：显示至少一个解剖图像的主图像显示; 触摸屏显示; 处理单元，其提供解剖图像的图形目录的选择; 以及网络，其被配置为将主图像显示器与处理单元接合并且被配置为将触摸屏显示器与处理单元接口。 所述系统显示所述触摸屏显示器上解剖图像的图形目录的选择中的至少一个，并且能够从所述处理器中选择所述图形目录中的至少一个，而不从所述主图像显示器移除所述解剖图像。 触摸屏显示器包括能够切换显示解剖图像并选择解剖图像的图形目录的按钮。 该系统能够通过触摸在触摸屏显示器上显示的目录中的相应图像来选择至少一个解剖图像。

公开(公告)号：US09320486B2

公开(公告)日：2016-04-26

申请号：US14064470

申请日：2013-10-28

申请人： John Baumgart

发明人： John Baumgart

IPC分类号： G06K9/00 ,  A61B6/00 ,  G06T5/50

CPC分类号： A61B6/504 ,  A61B6/4441 ,  A61B6/481 ,  A61B6/486 ,  A61B6/5229 ,  G06T5/50 ,  G06T2207/10116 ,  G06T2207/20221 ,  G06T2207/20224

摘要： A system and method includes reception of a mask x-ray image of a patient volume, reception of a plurality of sequential x-ray images of the patient volume including a contrast medium, subtraction of the mask x-ray image from each of the plurality of sequential x-ray images to generate a plurality of sequential x-ray difference images, filtering of each of the plurality of sequential x-ray difference images based on one or more filter parameters to generate a plurality of sequential filtered x-ray difference images, combination of each of the plurality of sequential filtered x-ray difference images with a corresponding one of the plurality of sequential x-ray difference images based on a weight to generate a plurality of combined sequential x-ray images, and display of the plurality of combined sequential x-ray images sequentially.

摘要翻译： 系统和方法包括接收患者体积的掩模x射线图像，接收包括造影剂的患者体积的多个连续x射线图像，从多个部分中的每一个减去掩模x射线图像 的顺序x射线图像以生成多个顺序x射线差分图像，基于一个或多个滤波器参数对多个连续X射线差分图像中的每一个滤波，以产生多个顺序滤波的X射线差分图像 多个顺序滤波的X射线差分图像中的每一个与基于权重的多个顺序x射线差分图像中的相应一个的组合，以产生多个组合的顺序x射线图像，并且显示多个 的顺序连续X射线图像。

公开(公告)号：US20130281832A1

公开(公告)日：2013-10-24

申请号：US13856510

申请日：2013-04-04

申请人： John Baumgart ,  Olivier Ecabert ,  John Christopher Rauch

发明人： John Baumgart ,  Olivier Ecabert ,  John Christopher Rauch

IPC分类号： A61B6/00 ,  A61M5/00 ,  A61B6/12 ,  A61B5/00

CPC分类号： A61B6/5247 ,  A61B5/0035 ,  A61B5/0066 ,  A61B5/0084 ,  A61B5/0452 ,  A61B5/4839 ,  A61B5/7289 ,  A61B6/12 ,  A61B6/4417 ,  A61B6/4441 ,  A61B6/484 ,  A61B6/503 ,  A61B6/504 ,  A61B6/541 ,  A61M5/007

摘要： A system comprises a catheter including a lens, for acquiring optical coherence tomography images within the vessel of interest as the catheter is being retracted from the vessel in the presence of contrast agent. An X-ray imaging system interface receives a first set of X-ray images of an anatomical region including the vessel of interest containing the catheter. The first set of X-ray images are acquired at points corresponding to the particular points within a heart cycle, while the catheter is stationary in the vessel, in response to a heart electrical activity representative signal and in the absence of contrast agent. An image data processor associates the received X-ray images and corresponding optical coherence tomography image data derived at corresponding time points within respective acquisition heart cycles.

摘要翻译： 系统包括导管，其包括透镜，用于在存在造影剂的情况下导管从血管中缩回，用于获取感兴趣血管内的光学相干断层图像。 X射线成像系统接口接收包括包含导管的感兴趣血管的解剖区域的第一组X射线图像。 响应于心脏电活动代表性信号并且在没有造影剂的情况下，导管在血管中静止，在与心脏周期内的特定点对应的点处获取第一组X射线图像。 图像数据处理器将接收到的X射线图像和在相应的采集心脏周期内的相应时间点导出的对应的光学相干断层摄影图像数据相关联。

公开(公告)号：US20130094734A1

公开(公告)日：2013-04-18

申请号：US13273439

申请日：2011-10-14

申请人： John Christopher Rauch ,  John Baumgart

发明人： John Christopher Rauch ,  John Baumgart

IPC分类号： G06K9/00

CPC分类号： G06T7/38 ,  G06T2207/10116 ,  G06T2207/30101

摘要： A system automatically processes different medical image sequences facilitating comparison of the sequences in adjacent respective display areas. An image data processor, identifies first and second mask images of first and second image sequences respectively as images preceding introduction of contrast agent and determines a translational shift between the first and second mask images. The image data processor transforms data representing individual images of at least one of the first image sequence and the second image sequence in response to the determined translational shift to reduce mis-alignment of the individual images of the first image sequence relative to the individual images of the second image sequence. A display presents first and second image sequences corrected for mis-alignment, in substantially adjacent display areas to facilitate user comparison.

摘要翻译： 系统自动处理不同的医学图像序列，便于在相邻的各个显示区域中对序列进行比较。 图像数据处理器分别将第一和第二图像序列的第一和第二掩模图像分别识别为引入造影剂之前的图像，并确定第一和第二掩模图像之间的平移位移。 图像数据处理器响应于所确定的平移移位来变换表示第一图像序列和第二图像序列中的至少一个的各个图像的数据，以减少第一图像序列的各个图像相对于各个图像的不对准 第二个图像序列。 显示器在基本上相邻的显示区域中呈现针对不对准校正的第一和第二图像序列，以便于用户比较。

公开(公告)号：US20120201439A1

公开(公告)日：2012-08-09

申请号：US13252238

申请日：2011-10-04

申请人： John Christopher Rauch ,  John Baumgart

发明人： John Christopher Rauch ,  John Baumgart

IPC分类号： G06K9/00

CPC分类号： G06T7/20 ,  G06T2207/20224 ,  G06T2207/30101

摘要： A motion compensated digitally subtracted Angiography (DSA) image processing system includes an interface for acquiring a sequence of images of patient vessels both prior to and following introduction of contrast agent into the vessels. An image data processor automatically, (a) determines a first shift vector for a first image of the sequence for compensating for shift between the first image and a first reference image of the sequence, (b) applies the determined first shift vector to the first image of the sequence to produce a shifted image, (c) subtracts the first reference image from the shifted image to produce a subtracted image enhancing vessel structure, (d) determines a second shift vector for compensating for shift between the subtracted image and a second reference image and (e) shifts content of the subtracted image relative to the second reference image in response to the second shift vector, to provide a shifted subtracted image enhancing and aligning vessel structure.

摘要翻译： 运动补偿数字减影血管造影（DSA）图像处理系统包括用于在将造影剂引入血管之前和之后获取患者血管的图像序列的界面。 图像数据处理器自动地（a）确定用于补偿第一图像与序列的第一参考图像之间的偏移的序列的第一图像的第一移位矢量，（b）将确定的第一移位向量应用于第一图像 用于产生移位图像的图像的图像，（c）从移位图像中减去第一参考图像以产生减影图像增强容器结构，（d）确定用于补偿相减图像与第二参考图像之间的偏移的第二移位矢量 参考图像和（e）响应于第二移位矢量移动相减相对于第二参考图像的内容，以提供偏移减去的图像增强和对准血管结构。

公开(公告)号：US20120114215A1

公开(公告)日：2012-05-10

申请号：US13191498

申请日：2011-07-27

申请人： John Baumgart ,  Benita Devadas ,  Thomas Ruggiero

发明人： John Baumgart ,  Benita Devadas ,  Thomas Ruggiero

IPC分类号： G06K9/00

CPC分类号： G06T7/0012 ,  A61B6/461 ,  A61B6/504 ,  G06T2207/10121 ,  G06T2207/30021 ,  G06T2207/30101

摘要： A data management system automatically manages image buffers to produce images for angiography using a first memory portion, a second memory portion and an image data processor. The first memory portion stores first image frame data representing minimum luminance values of individual pixels of a sequence of medical images. The second memory portion stores second image frame data comprising a difference between the minimum luminance values and corresponding maximum luminance values. The image data processor processes data representing an acquired X-ray image frame of a catheterized vessel using a stored frame of maximum or minimum pixel luminance values and the second image frame data to provide an image with enhanced visualization of a catheter in a vessel.

摘要翻译： 数据管理系统使用第一存储器部分，第二存储器部分和图像数据处理器自动管理图像缓冲器以产生用于血管造影的图像。 第一存储器部分存储表示一系列医学图像的各个像素的最小亮度值的第一图像帧数据。 第二存储器部分存储包括最小亮度值和对应的最大亮度值之间的差的第二图像帧数据。 图像数据处理器使用存储的最大或最小像素亮度值的帧处理表示所获取的导管血管的X射线图像帧的数据，并且第二图像帧数据提供具有增强的血管中导管可视化的图像。