公开(公告)号：EP1620747B1

公开(公告)日：2009-08-26

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：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：EP1745303A1

公开(公告)日：2007-01-24

申请号：EP05718792.4

申请日：2005-04-22

申请人： Koninklijke Philips Electronics N.V.

发明人： HOOGENRAAD, Frank, G., C. ,  VAN DEN BRINK, Johan, S.

IPC分类号： G01R33/28

CPC分类号： G01R33/4828 ,  G01R33/287

摘要： A magnetic resonance imaging system comprises a receiver system to acquire magnetic resonance signals. A control system controls the receiver system to reform an acquisition sequence to acquire the magnetic resonance signals in several acquisition segments. Respective groups of acquisition segments involve acquisition of magnetic resonance signals in different RF-receiver frequency bands. In the respective groups of acquisition segments, magnetic resonance signals are acquired from different nuclei having different gyromagnetic ratios. According to the invention, reconstruction of different types of information carried by the respective nuclei is made possible. For example, imaging of the anatomy of a patient to be examined is performed on the basis of proton magnetic resonance imaging. Imaging of a targeted contrast agent is achieved on the basis of 19F magnetic resonance imaging. Localisation of a invasive device, such as a catheter, is also performed on the basis of e.g. 19F magnetic resonance imaging.

摘要翻译： 磁共振成像系统包括用于获取磁共振信号的接收器系统。 控制系统控制接收机系统改造采集序列以获取几个采集段中的磁共振信号。 各组采集段涉及在不同的RF接收机频带中采集磁共振信号。 在相应的采集段组中，从具有不同回旋磁比的不同核获取磁共振信号。 根据本发明，由各个核承载的不同类型的信息的重构成为可能。 例如，基于质子磁共振成像进行待检查患者的解剖结构的成像。 在19F磁共振成像的基础上实现靶向造影剂的成像。 侵入性装置（例如导管）的定位也基于例如导管进行。 19F磁共振成像。

公开(公告)号：EP1714164A1

公开(公告)日：2006-10-25

申请号：EP05702845.8

申请日：2005-01-31

申请人： Koninklijke Philips Electronics N.V.

发明人： HOOGENRAAD, Frank, G., C. ,  HOLTHUIZEN, Ronaldus, F., J. ,  BRIJDER, Robert

IPC分类号： G01R33/563

CPC分类号： G01R33/56341

摘要： A magnetic resonance imaging method involves acquisition of magnetic resonance signals with application of diffusion weighting at a plurality of diffusion weighting strengths diffusion directions. An object dataset is reconstructed from the magnetic resonance signals in which apparent diffusion coefficients are assigned. The occurrence of one single or several diffusion directions in identified for individual voxels. In this way account is taken of crossing fibres.