公开(公告)号：EP2203894A2

公开(公告)日：2010-07-07

申请号：EP08807466.1

申请日：2008-08-28

申请人： Koninklijke Philips Electronics N.V.

发明人： BREEUWER, Marcel ,  OLIVAN BESCOS, Javier ,  TERMEER, Maurice, A.

IPC分类号： G06T15/00

CPC分类号： G06T15/08

摘要： The invention relates to visualization of medical images, and in embodiments to the visualization of the left ventricle of the human heart or other organs. A method of visualizing one or more sets of voxel data is disclosed. The method comprising: providing one or more sets of voxel data, providing and segmenting the voxel data in accordance with a segment model. The segmented voxel data is reformatted to fit a reference shape (20) being defined by at least an inner (22) reference surface and an outer (23) reference surface. The reformatted voxel data is mapped to a target shape being defined by at least a first (29) target surface and a second (200) target surface. The target shape is moreover visualized. The mapping of the reformatted voxel data to a target shape is a mapping of one or more property values from the inner reference surface to the first target surface, and from the outer reference surface to the second target surface, and where a direction (26, 27) extending along the inter- surface distance of the reference shape is maintained in the target shape.

摘要翻译： 本发明涉及医学图像的可视化，并且在实施例中涉及人心脏或其他器官的左心室的可视化。 公开了一种可视化一组或多组体素数据的方法。 该方法包括：提供一组或多组体素数据，根据分段模型提供和分割体素数据。 分割的体素数据被重新格式化以适合由至少内部（22）参考表面和外部（23）参考表面限定的参考形状（20）。 重新格式化的体素数据被映射到由至少第一（29）目标表面和第二（200）目标表面限定的目标形状。 此外，目标形状可视化。 重新格式化的体元数据到目标形状的映射是从内部参考表面到第一目标表面以及从外部参考表面到第二目标表面的一个或多个属性值的映射，并且其中方向（26， 沿着基准形状的面间距离延伸的图27所示的形状保持为目标形状。

公开(公告)号：EP1620827B1

公开(公告)日：2010-06-02

申请号：EP04729181.0

申请日：2004-04-23

申请人： Koninklijke Philips Electronics N.V.

发明人： NOBLE, Nicholas, M., I. ,  BREEUWER, Marcel

IPC分类号： G06K9/00 ,  A61B5/055 ,  G06T5/00 ,  A61B5/00 ,  A61B8/02

CPC分类号： G06T7/0012 ,  G06T7/62 ,  G06T2207/30048

摘要： A method of and a computer readable medium comprising a program for calculating total left ventricular (LV) volume during a cardiac cycle. The LV volume is estimated using only endocardial contours in a cardiac 3D image that was acquired at end diastole (ED), i.e. the moment at which the heart is fully relaxed. These contours are manually specified or (semi-)automatically derived. Based on these contours and on the pixel intensity in all other images, the LV volume is estimated based on intensity variations within the area enclosed by the contours (ED LV blood pool). These variations are proportional to the change in size of the ventricle. Hence ventricle volume and other derivable cardiac functionality parameters as well as the phase in the cardiac cycle are derived. The 3D image is previously to the method captured by means of a device for imaging inside parts of a mammal body, such as Magnetic Resonance (MR), Computer Tomography (CT), Nuclear Medicine (NM) or Ultrasound (US) devices.

公开(公告)号：EP1998673A2

公开(公告)日：2008-12-10

申请号：EP07713231.4

申请日：2007-03-09

申请人： Koninklijke Philips Electronics N.V.

发明人： BREEUWER, Marcel ,  DE PUTTER, Sander

IPC分类号： A61B6/00

CPC分类号： A61B6/504 ,  A61B5/02007 ,  A61B6/032

摘要： A method of determining wall stress in an abdominal aortic aneurysm is disclosed. The method comprises determining, from anatomical image data, respective first stress values at locations on the wall, based on the aorta having substantially uniform stiffness. The primary direction of stress those locations are determined, and the locations of calcified regions (20) are then determined. The distance to the nearest calcified region is then determined for each location not corresponding to a calcified region, and the additional stress caused by the calcified regions is then determined from values stored in a memory.

摘要翻译： 公开了一种测定腹主动脉瘤中壁应力的方法。 该方法包括基于具有基本均匀刚度的主动脉从解剖图像数据确定壁上位置处的各自的第一应力值。 确定这些位置的主要应力方向，然后确定钙化区域（20）的位置。 然后，对于不对应于钙化区域的每个位置确定到最近钙化区域的距离，然后由存储在存储器中的值确定由钙化区域引起的附加应力。

公开(公告)号：EP1417507B1

公开(公告)日：2008-04-30

申请号：EP02755468.2

申请日：2002-07-31

申请人： Koninklijke Philips Electronics N.V.

发明人： BREEUWER, Marcel

IPC分类号： G01R33/563

CPC分类号： G01R33/563

摘要： The invention relates to a method of correcting inhomogeneities / discontinuities in MR perfusion images of the myocardium of a patient, which perfusion images relate time-sequentially to a preliminary phase which precedes the administration of a contrast medium and to an examination phase which succeeds the administration of the contrast medium, the perfusion images from the examination phase being corrected, in a correction step, for a detected intensity variation of the perfusion images from the preliminary phase, the perfusion images from the preliminary phase being transformed, prior to the correction step, in such a manner that pixels or groups of pixels thereof register with corresponding pixels or groups of pixels of the perfusion images from the examination phase.

公开(公告)号：EP1490825B1

公开(公告)日：2006-11-02

申请号：EP03744960.0

申请日：2003-03-20

申请人： Koninklijke Philips Electronics N.V.

发明人： BREEUWER, Marcel

IPC分类号： G06F19/00

CPC分类号： G06T7/0012 ,  G06F19/00 ,  G06F19/321 ,  G16H50/50

摘要： In a method of analyzing a quantity having temporal and spatial variations a multidimensional output data array is formed. The multidimensional output data array comprises array positions arranged along at least a first data-axis and a second data-axis, such as a spatial axis and a temporal axis. Values of the quantity are entered in the multidimensional output data array. Values of the quantity at substantially the same instant are entered at respective positions in the multidimensional output data array at equal positions along the first data-axis. Values of the quantity at substantially the same spatial position are entered at respective positions in the multidimensional output data array at equal positions along the second data-axis.

公开(公告)号：EP1256012B1

公开(公告)日：2006-06-07

申请号：EP01985356.3

申请日：2001-11-27

申请人： Koninklijke Philips Electronics N.V.

发明人： BREEUWER, Marcel

IPC分类号： G01R33/567

CPC分类号： G01R33/56509 ,  G01R33/56341

摘要： The invention relates to a method of visualizing the perfusion of an organ, notably the perfusion of the myocardium of the heart. A series of MR perfusion images is displayed on a visual display unit. Each pair of successive images from a series of images is transformed in such a manner that the organ that is shown on the display unit essentially maintains its position.

公开(公告)号：EP1593092A1

公开(公告)日：2005-11-09

申请号：EP04703229.7

申请日：2004-01-19

申请人： Koninklijke Philips Electronics N.V.

发明人： BREEUWER, Marcel ,  GOETTE, Ursula

IPC分类号： G06T7/00

CPC分类号： G06T7/00

摘要： An invention is described wherein a medical image analysis process which utilizes information contained in at least one medical image and in which a quantitative evaluation is derived from the medical image analysis process and delivered as an output, also delivers as an output the result of an error analysis, performed in order to provide information relating to the accuracy of the quantitative evaluation. This error analysis may be based on an evaluation of the artefacts which have an effect on the image. This error analysis may also be based on an evaluation of the imaging processes which have an effect on the image.

公开(公告)号：EP1490825A2

公开(公告)日：2004-12-29

申请号：EP03744960.0

申请日：2003-03-20

申请人： Koninklijke Philips Electronics N.V.

发明人： BREEUWER, Marcel

IPC分类号： G06F19/00

CPC分类号： G06T7/0012 ,  G06F19/00 ,  G06F19/321 ,  G16H50/50

摘要： In a method of analyzing a quantity having temporal and spatial variations a multidimensional output data array is formed. The multidimensional output data array comprises array positions arranged along at least a first data-axis and a second data-axis, such as a spatial axis and a temporal axis. Values of the quantity are entered in the multidimensional output data array. Values of the quantity at substantially the same instant are entered at respective positions in the multidimensional output data array at equal positions along the first data-axis. Values of the quantity at substantially the same spatial position are entered at respective positions in the multidimensional output data array at equal positions along the second data-axis.

公开(公告)号：EP1290557A2

公开(公告)日：2003-03-12

申请号：EP01945129.3

申请日：2001-05-11

申请人： Koninklijke Philips Electronics N.V.

发明人： BEUKER, Rob, A. ,  BREEUWER, Marcel

IPC分类号： G06F11/00

CPC分类号： G06T3/0075 ,  A61B6/5241 ,  G06T7/30

摘要： This invention includes apparatus and methods for merging of overlapping two-dimensional (2D) images which are formed by a image pick-up device as projections of a three-dimensional (3D) scene. In particular, the merging includes image registration by projective transformation of one of the 2D images, the transformation being derived from corresponding feature found in both images. In order to achieve improved accuracy and stability, the coordinates of the corresponding feature points are chosen or are translated so that, on average, the numerical ranges of coordinate values are minimized. Apparatus of the invention includes an appropriately configured image processor or computer with an attached image acquisition device, which in one embodiment, is a diagnostic x-ray apparatus.

摘要翻译： 由图像拾取装置形成的重叠二维（2D）图像的合并作为三维（3D）场景的投影包括通过2D图像之一的投影变换的图像配准。 转换是从两个图像中相应的特征点得出的。 为了实现提高的精度和稳定性，相应特征点的坐标被平移，使得坐标值的数值范围平均被最小化。 用于执行重叠的2D图像的合并的装置包括具有附加的图像采集装置的适当配置的图像处理器或计算机。 在一个实施例中，该装置是诊断性X射线装置。