公开(公告)号：EP1620747A1

公开(公告)日：2006-02-01

申请号：EP04728879.0

申请日：2004-04-22

申请人： Koninklijke Philips Electronics N.V.

发明人： HOOGENRAAD, Frank, G., C. ,  VAN MUISWINKEL, Arianne, M., C. ,  HOLTHUIZEN, Ronaldus, F., J. ,  VAN DEN BRINK, Johan, S.

IPC分类号： G01R33/563

CPC分类号： G01R33/56341 ,  G01R33/4806

摘要： A method of deriving a directional structure from an object dataset is proposed. The object dataset assigns local directions to positions in a multidimensional geometrical space. For example the local directions concern local flow directions in a diffusion tensor magnetic resonance image at least one `region of interest' is selected on the basis of spatial functional information, such as an fMRI image, time correlation of an fMRI image series with a functional paradigm or an anatomical image. These `region of interest' are employed to initialize a fibre tracking to derive the directional structure that represents the nervous fibre system.

公开(公告)号：EP1616199A1

公开(公告)日：2006-01-18

申请号：EP04725778.7

申请日：2004-04-05

申请人： Koninklijke Philips Electronics N.V.

发明人： VAN MUISWINKEL, Arianne, M., C. ,  HOLTHUIZEN, Ronaldus, F., J. ,  HOOGENRAAD, Frank, G., C.

IPC分类号： G01R33/563

CPC分类号： G01R33/56341 ,  G01R33/5608

摘要： The invention relates to a system for displaying fibre tracts of a human or animal, comprising memory means holding diffusion images of a region of interest of said human or animal, processing means connected to the memory means for deriving fibre tract data from the diffusion images, and display means for displaying the fibre tracts derived by the processing means wherein the processing means include a discriminator to select the fibre tract data to be displayed on the display means.

公开(公告)号：EP1506426A1

公开(公告)日：2005-02-16

申请号：EP03720816.2

申请日：2003-05-12

申请人： Koninklijke Philips Electronics N.V.

发明人： HOOGENRAAD, Frank, G., C. ,  HOLTHUIZEN, Ronaldus, F., J. ,  VAN MUISWINKEL, Arianne, M., C.

IPC分类号： G01R33/563 ,  G06T15/00

CPC分类号： G01R33/56341

摘要： An imaging method for imaging a subject (16) including anisotropic or fibrous structures (102) includes acquiring a three-dimensional apparent diffusion tensor map (44, 162) of a region with some anisotropic structures (102). The apparent diffusion tensor map (44, 162) is processed (46, 164) to obtain ordered eigenvectors (e1, e2, e3) and eigenvalues (Ϝ1, Ϝ2, Ϝ3). A three-dimensional fiber representation (54, 208) is tracked (52, 190) using the eigenvectors (e1, e2, e3) and eigenvalues (Ϝ1, Ϝ2, Ϝ3). The three-dimensional fiber representation (54, 208) is rendered (70, 220) as a hyperstreamline representation (212, 238). An background image representation (328) is generated (72, 320). A human-viewable display (344) is produced (340) including the rendered hyperstreamline representation (212, 238) superimposed on the generated image background representation (328).

公开(公告)号：EP1399068A1

公开(公告)日：2004-03-24

申请号：EP02769532.9

申请日：2002-05-08

申请人： Koninklijke Philips Electronics N.V.

发明人： VAN MUISWINKEL, Arianne, M., C. ,  VAN DEN BRINK, Johan, S.

IPC分类号： A61B6/03

CPC分类号： A61B6/032 ,  A61B6/08 ,  A61B6/5235 ,  A61B6/545

摘要： The invention relates to a method for prescription of scanning parameters determining the orientation and location of tomographic imaging planes. The invention facilitates the process of re-scanning a patient at different times. This is achieved by the computation of the current orientation and location of the patient relative to his or her orientation and location during a previous examination by matching (3) a current reference scan image (1) with the image data of a corresponding previous reference scan (2). The current examination scanning parameters are calculated by adjusting the scanning parameters of the previous examination in accordance with the relative position of the patient during the current examination.