公开(公告)号：WO2008065611A2

公开(公告)日：2008-06-05

申请号：PCT/IB2007054807

申请日：2007-11-27

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  WIEMKER RAFAEL ,  OPFER ROLAND ,  BUELOW THOMAS

Inventor： WIEMKER RAFAEL ,  OPFER ROLAND ,  BUELOW THOMAS

IPC: G06T7/00 ,  A61B5/00 ,  G06T11/00

CPC classification number: A61B6/504 ,  A61B6/032 ,  A61B6/12 ,  A61B6/481 ,  A61B6/503 ,  G06T7/0012 ,  G06T2207/10081 ,  G06T2207/30104

Abstract: A system (500) for visualizing a vascular structure represented by a three- dimensional angiography dataset is disclosed. Respective voxel values are associated with respective voxels. The dataset represents a vascular structure. The system comprises means (502) for establishing respective filling values; means (504) for identifying respective minimum filling values; means (506) for computing respective deficiency values; and an output (514) for providing a visualization in dependence on the deficiency values. A respective filling value is indicative of an amount of blood flow at the respective position in the vascular structure. A respective minimum filling value is a minimum of the filling values associated with the positions upstream of the respective position. A respective deficiency value is indicative of a difference between the filling value associated with the respective position and the minimum filling value associated with the respective position.

Abstract translation: 公开了一种用于可视化由三维血管造影数据集表示的血管结构的系统（500）。 各个体素值与相应的体素相关联。 数据集表示血管结构。 该系统包括用于建立相应填充值的装置（502） 用于识别相应的最小填充值的装置（504）; 用于计算各个不足值的装置（506）; 以及用于根据不足值提供可视化的输出（514）。 相应的填充值表示血管结构中各个位置处的血流量。 相应的最小填充值是与相应位置的上游位置相关联的填充值的最小值。 相应的缺陷值表示与各个位置相关联的填充值与与各个位置相关联的最小填充值之间的差异。

公开(公告)号：WO2006038166A3

公开(公告)日：2007-08-30

申请号：PCT/IB2005053217

申请日：2005-09-29

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  BUELOW THOMAS ,  LORENZ CRISTIAN ,  MOVASSAGHI BABAK ,  RASCHE VOLKER

Inventor： BUELOW THOMAS ,  LORENZ CRISTIAN ,  MOVASSAGHI BABAK ,  RASCHE VOLKER

IPC: G06T11/00

CPC classification number: G06T11/005 ,  G06T2211/404 ,  G06T2211/412

Abstract: A device (104) for processing image data of a movable object (101), the device (104) comprising a processor adapted to carry out the method steps of receiving (410) an image data set reflecting a two-dimensional image according to a particular two­dimensional projection of the movable object (101) at a particular point of time, determining (420) an initial model for the two-dimensional image, wherein the initial model is determined based on predetermined structural information about the movable object (101) and based on predetermined motion characteristics of the movable object (101), and modifying (430) the determined initial model to obtain a final model for the two-dimensional image.

Abstract translation: 一种用于处理可移动物体（101）的图像数据的设备（104），所述设备（104）包括处理器，所述处理器适于执行所述方法步骤，以接收（410）反映二维图像的图像数据集 确定（420）二维图像的初始模型，其中基于关于可移动物体（101）的预定结构信息和 基于所述可移动物体（101）的预定运动特性，并且修改（430）所确定的初始模型以获得所述二维图像的最终模型。

公开(公告)号：WO2005057491A8

公开(公告)日：2006-08-03

申请号：PCT/IB2004052569

申请日：2004-11-26

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  BUELOW THOMAS ,  GRASS MICHAEL ,  LORENZ CHRISTIAN ,  MANZKE ROBERT

Inventor： BUELOW THOMAS ,  GRASS MICHAEL ,  LORENZ CHRISTIAN ,  MANZKE ROBERT

IPC: G06T5/00

CPC classification number: G06T7/11 ,  G06T2207/10081 ,  G06T2207/30101

Abstract: Coronary artery segmentation is a crucial task in cardiac CT image processing. This is often a tedious task performed manually by an operator. According to the present invention, a method is provided which combines data from multiple cardiac phases during the segmentation process in order to deliver a complete and continuous coronary vessel tree. Advantageously, this may allow for an improved visualization and segmentation of vessels, for example, in coronary CTA.

Abstract translation: 冠状动脉分割是心脏CT图像处理中的关键任务。 这通常是由操作员手动执行的繁琐的任务。 根据本发明，提供了一种在分割过程中组合来自多个心脏相的数据以递送完整且连续的冠状动脉血管树的方法。 有利地，这可以允许例如在冠状动脉CTA中改善血管的可视化和分割。

公开(公告)号：WO2011073864A3

公开(公告)日：2011-08-11

申请号：PCT/IB2010055714

申请日：2010-12-10

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  ERHARD KLAUS ,  GRASS MICHAEL ,  BUELOW THOMAS ,  HANSIS EBERHARD SEBASTIAN

Inventor： ERHARD KLAUS ,  GRASS MICHAEL ,  BUELOW THOMAS ,  HANSIS EBERHARD SEBASTIAN

IPC: G06T11/00

CPC classification number: G06T11/006 ,  G06T2211/436

Abstract: A system for generating a reconstruction of an object of interest comprises a shape model generator (1) for generating a shape model representing a shape of the object in dependence on a plurality of projections of the object, and a reconstructor (2) for reconstructing the object, based on the projections, in dependence on the shape model to obtain the reconstruction of the object. The reconstructor (2) comprises a soft-tissue reconstructor (4) for generating a reconstruction favoring soft tissue, based on the plurality of projections, and a sparse reconstructor (5) for generating a reconstruction of sparse objects, based on the plurality of projections. The reconstructor (2) comprises a clipping subsystem (3) for clipping an outside of the object from the reconstruction, based on the shape model, or the reconstructor (2) is arranged for reconstructing only an inside and/or boundary of the object as defined by the shape model.

Abstract translation: 一种用于生成感兴趣对象的重建的系统包括：形状模型生成器（1），用于根据对象的多个投影生成表示对象的形状的形状模型;以及重建器（2），用于重建 对象，基于投影，依赖于形状模型来获得对象的重构。 重建器（2）包括用于基于多个投影产生有利于软组织的重构的软组织重建器（4），以及用于基于多个投影产生稀疏对象的重建的稀疏重构器（5） 。 所述重建器（2）包括用于基于所述形状模型从所述重建中剪切所述对象的外部的剪裁子系统（3），或者所述重建器（2）被设置为仅将所述对象的内部和/或边界重建为 由形状模型定义。

公开(公告)号：WO2008155718A3

公开(公告)日：2009-02-12

申请号：PCT/IB2008052381

申请日：2008-06-17

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  MEETZ KIRSTEN ,  BUELOW THOMAS ,  YOUNG STEWART

Inventor： MEETZ KIRSTEN ,  BUELOW THOMAS ,  YOUNG STEWART

IPC: G06T7/00 ,  G06K9/00

CPC classification number: G06T7/0012 ,  A61B6/032 ,  A61B6/12 ,  A61B6/501 ,  A61B2576/026 ,  G06T7/44 ,  G06T2207/10081 ,  G06T2207/20156 ,  G06T2207/30016 ,  G06T2207/30096 ,  G06T2210/41

Abstract: The invention relates to a system (100) arranged to delineate the acute intracerebral haematoma in non-contrasted CT images in two stages. The first stage, performed by the extraction unit (110), employs an analysis of gray values of the image data in order to extract the candidate region. The candidate region may comprise both an acute haematoma and other regions having similar gray values, e.g., regions resulting from partial volume effects at the interface of the bony structures of the skull and the brain. The novel second stage, performed by the classification unit (120), analyzes spatial features of the candidate region such as, for example, the size, shape, and connectedness to the skull bone of the candidate region. Using spatial features of the candidate region improves the correctness of classification of the candidate region as a true or false acute haematoma.

Abstract translation: 本发明涉及一种系统（100），其被布置成在两个阶段中描绘非对照CT图像中的急性脑内血肿。 由提取单元（110）执行的第一阶段对图像数据的灰度值进行分析，以提取候选区域。 候选区域可以包括急性血肿和具有相似灰度值的其它区域，例如由头骨和脑的骨骼结构的界面处的部分体积效应产生的区域。 由分类单元（120）执行的新颖的第二阶段分析候选区域的空间特征，例如与候选区域的颅骨的尺寸，形状和连接性。 使用候选区域的空间特征将候选区域的分类的正确性提高为真的或假的急性血肿。

公开(公告)号：WO2008035266A2

公开(公告)日：2008-03-27

申请号：PCT/IB2007053730

申请日：2007-09-17

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  BUELOW THOMAS ,  WIEMKER RAFAEL ,  OPFER ROLAND

Inventor： BUELOW THOMAS ,  WIEMKER RAFAEL ,  OPFER ROLAND

IPC: G06T7/00

CPC classification number: G06T7/11 ,  G06T7/187 ,  G06T2207/10072 ,  G06T2207/10116 ,  G06T2207/20104 ,  G06T2207/20156 ,  G06T2207/30004

Abstract: A computer program to identify a single seed point in an image is presented in which a manually positionable region of interest is presented to the user in the image and a single seed point is selected according to pre-defined criteria from the pixels delineated by the region of interest. Such seed points are used to initialise, for example, segmentation algorithms. The invention improves accuracy of seed point selection and also increases reproducibility. In an advantageous embodiment the region of interest is also sizable and a workstation and computer mouse with rotatable control device are provided, where the rotatable control device is used to control the size of the region of interest.

Abstract translation: 呈现用于识别图像中的单个种子点的计算机程序，其中将手动定位的感兴趣区域呈现给图像中的用户，并且根据来自由该区域描绘的像素的预定义标准来选择单个种子点 出于兴趣。 这样的种子点用于初始化例如分割算法。 本发明提高了种子选择的准确性，并提高了再现性。 在有利的实施例中，感兴趣的区域也是相当大的，并且提供了具有可旋转控制装置的工作站和计算机鼠标，其中可旋转控制装置用于控制感兴趣区域的尺寸。

公开(公告)号：WO2006126150A3

公开(公告)日：2007-04-12

申请号：PCT/IB2006051596

申请日：2006-05-19

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  WIEMKER RAFAEL ,  BUELOW THOMAS ,  BLAFFERT THOMAS

Inventor： WIEMKER RAFAEL ,  BUELOW THOMAS ,  BLAFFERT THOMAS

IPC: G06T17/40

CPC classification number: G06T19/00 ,  G06T15/08 ,  G06T2210/41 ,  G06T2219/008

Abstract: Usually orthogonal slices of a three-dimensional image set of a tracheobronchial tree (40) of a body do not show the tracheobronchial plane. Thus, the plane has to be adjusted manually by the user by trial and error, which is a tedious and time consuming process. The concept of the invention suggests a method of automated extraction and display of at least one oblique slice (49) of the tracheobronchial plane from a three- dimensional image set of a body. The method is fully automated without any user interaction. According to the invention the method comprises the step of: automatically identifying set of image points being part of a tracheobronchial tree (40); automatically identifying at least one oblique slice (49) as a fit to the image points; automatically performing a reformation step on the three-dimensional image set to extract the oblique slice (49); and automatically displaying (Fig. 6, 7) the oblique slice (49) of the tracheobronchial plane. The concept also provides a respective system (1), image acquisition device, workstation and computer program product and information carrier.

Abstract translation: 通常身体的气管支气管树（40）的三维图像组的正交切片不显示气管支气管平面。 因此，飞机必须由用户手动调整，通过反复试验，这是一个冗长乏味的过程。 本发明的概念提出了一种从身体的三维图像集合自动提取和显示气管支气管平面的至少一个倾斜切片（49）的方法。 该方法是完全自动的，没有任何用户交互。 根据本发明，该方法包括以下步骤：自动识别作为气管支气管树（40）的一部分的图像点; 自动识别至少一个倾斜切片（49），以适合图像点; 自动地对三维图像集进行改写步骤以提取倾斜切片（49）; 并自动显示（图6，7）气管支气管平面的斜切片（49）。 该概念还提供了相应的系统（1），图像采集设备，工作站和计算机程序产品和信息载体。

公开(公告)号：WO2006085250A3

公开(公告)日：2007-03-08

申请号：PCT/IB2006050362

申请日：2006-02-03

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  BUELOW THOMAS ,  WIEMKER RAFAEL ,  LORENZ CRISTIAN ,  RENISCH STEFFEN ,  BLAFFERT THOMAS

Inventor： BUELOW THOMAS ,  WIEMKER RAFAEL ,  LORENZ CRISTIAN ,  RENISCH STEFFEN ,  BLAFFERT THOMAS

IPC: G06T7/00 ,  A61B5/00

CPC classification number: G06T7/0012 ,  A61B6/032 ,  A61B6/481 ,  A61B6/5217 ,  G06T7/12 ,  G06T7/149 ,  G06T2207/10081 ,  G06T2207/10116 ,  G06T2207/30061 ,  G06T2207/30064 ,  G06T2207/30101

Abstract: An imaging method for identifying abnormal tissue in the lung is provided, comprising the recording of slice images of the lung by means of X-ray radiation, recording of blood vessels, differentiation of blood vessels and abnormal tissue, segmentation of the abnormal tissue and display of the segmented abnormal tissue on an output device. In addition, a computer tomograph for identifying abnormal tissue in the lung is provided, having a radiation source for recording slice images of the lung and blood vessels by means of X-ray radiation, a computer unit for differentiating the blood vessels from the abnormal tissue and for segmenting the abnormal tissue, as well as an output device for displaying the segmented abnormal tissue. Furthermore, a computer program is provided for controlling a computer tomograph for an identification of abnormal tissue in the lung by means of a radiation source, designed to record slice images of the lung and blood vessels by means of X-ray radiation, to differentiate the blood vessels from abnormal tissue, to segment the abnormal tissue and to control an output device for displaying the abnormal tissue.

Abstract translation: 提供了一种用于鉴定肺中异常组织的成像方法，包括通过X射线照射记录肺的切片图像，记录血管，血管和异常组织的分化，异常组织的分割和显示 的输出装置上的分段异常组织。 另外，提供了一种用于识别肺中的异常组织的计算机断层摄影机，具有用于通过X射线辐射记录肺和血管的切片图像的辐射源，用于将血管与异常组织分离的计算机单元 并且用于分割异常组织，以及用于显示分段的异常组织的输出装置。 此外，提供了一种计算机程序，用于通过辐射源来控制用于识别肺中的异常组织的计算机断层摄影机，其被设计成通过X射线辐射记录肺和血管的切片图像，以区分 来自异常组织的血管，分割异常组织并控制用于显示异常组织的输出装置。

公开(公告)号：WO2006085249A3

公开(公告)日：2006-12-07

申请号：PCT/IB2006050361

申请日：2006-02-03

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  WIEMKER RAFAEL ,  WORMANS DAG ,  BLAFFERT THOMAS ,  BUELOW THOMAS

Inventor： WIEMKER RAFAEL ,  WORMANS DAG ,  BLAFFERT THOMAS ,  BUELOW THOMAS

IPC: G06T7/60

CPC classification number: G06T7/62 ,  G06T2207/10081 ,  G06T2207/30064

Abstract: For differential diagnosis of pulmonary nodules, a certain fraction of malignant nodules do not exhibit significant enhancement when averaged over the whole nodule volume. According to an exemplary embodiment of the present invention, not only a single averaged contrast enhancement number is determined, but an enhancement curve for each nodule, showing the enhancement as a function of distance to boundary of the nodule. This may provide for an improved differential diagnosis.

Abstract translation: 对于肺结节的鉴别诊断，当整个结节体积平均时，一定数量的恶性结节不显示显着的增强。 根据本发明的示例性实施例，不仅确定单个平均对比度增强数，而且确定每个结节的增强曲线，其显示作为与结节边界的距离的函数的增强。 这可以提供改进的鉴别诊断。