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1.发明授权
公开(公告)号：EP2121136B1
公开(公告)日：2012-11-28
申请号：EP08762136.3
申请日：2008-02-20
发明人： PERNOT, Mathieu , FINK, Mathias , TANTER, Mickaël , MONTALDO, Gabriel , AUBRY, Jean-François , SINKUS, Ralph
CPC分类号： G01S7/52049 , A61B8/0808 , A61N7/02 , A61N2007/0078 , A61N2007/0095 , G01S15/8909
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2.发明公开
公开(公告)号：EP2121136A1
公开(公告)日：2009-11-25
申请号：EP08762136.3
申请日：2008-02-20
发明人： PERNOT, Mathieu , FINK, Mathias , TANTER, Mickaël , MONTALDO, Gabriel , AUBRY, Jean-François , SINKUS, Ralph
IPC分类号： A61N7/02
CPC分类号： G01S7/52049 , A61B8/0808 , A61N7/02 , A61N2007/0078 , A61N2007/0095 , G01S15/8909
摘要： The invention relates to a method for optimising wave focalisation in an area of interest (6) of a medium (4), the waves being emitted by a source network (3) to the medium (4) via an aberration insertion member (5) for inserting an initially non-determined phase deviation. The method of the invention comprises using M-1 successive modifications of the emitted wave, each resulting in a disturbance. According to the invention, the M disturbances are measured in the area of interest (6) at each modification of the phase and/or amplitude distribution, and these measures are used for deriving optimal focalisation characteristics that maximise the disturbance generated in the area of interest (6).
摘要翻译： 本发明涉及一种用于优化介质（4）的感兴趣区域（6）中的波聚焦的方法，所述波由源网络（3）经由像差插入构件（5）发射到介质（4） 用于插入最初未确定的相位偏差。 本发明的方法包括使用发射波的M-1个连续修改，每个修改导致扰动。 根据本发明，在相位和/或幅度分布的每个修改处，在感兴趣的区域（6）中测量M个扰动，并且这些测量被用于导出使感兴趣区域中产生的扰动最大化的最佳聚焦特性 （6）。
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3.发明公开
公开(公告)号：EP4249935A1
公开(公告)日：2023-09-27
申请号：EP23163001.3
申请日：2023-03-21
申请人： Siemens Healthcare GmbH , CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNRS , INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE - INSERM , Kings College London , The United States of America, as Represented By the Secretary, Department of Health and Human Services , Univ Paris XIII Paris-Nord Villetaneuse , Université Paris Cité
IPC分类号： G01R33/563 , A61B5/00 , B06B1/18
摘要： A method for synchronizing a rotational eccentric mass of a gravitational transducer used for a magnetic resonance elastography acquisition with a corresponding magnetic resonance elastography scan carried out by a magnetic resonance imaging system, wherein the rotation of the eccentric mass is driven by a shaft, the method comprising the steps:
(a) starting the rotation of the eccentric mass at a set vibration frequency and the magnetic resonance elastography scan at a set acquisition frequency; (b) determining the rotational position of the shaft; (c) defining the determined rotational position as first reference position; (d) calculating further reference positions, wherein the further reference positions may be the same as the first reference position, or may alternate between several positions; (e) at the start time of each subsequent acquisition period, determining the current rotational position of the shaft; (f) comparing the determined current rotational position with the theoretically expected reference position and decreasing or increasing the rotational speed of the rotational eccentric mass based on the comparison.-
公开(公告)号：EP4246165A1
公开(公告)日：2023-09-20
申请号：EP23159482.1
申请日：2023-03-01
申请人： Siemens Healthcare GmbH , Centre National de la Recherche Scientifique (CNRS) , Institut National de la Santé et de la Recherche Médicale (INSERM) , Kings College London , The United States of America, as represented by the Secretary, Department of Health and Human Services , Univ Paris XIII Paris-Nord Villetaneuse , Université Paris Cité
发明人： ANNIO, Giacomo , MUELLER-REINWALD, Verena , SINKUS, Ralph , DARWISH, Omar , SCHNELL, Wilfried , FALKNER, Tamara Elisabeth , GHARIB, Ahmed M.
IPC分类号： G01R33/28 , G01R33/563 , A61B5/00
摘要： The invention relates in one aspect to a motor for a magnetic resonance (MR) tomography room, in another aspect to a patient table for the MR room, in another further aspect to a MR elastography device and in a further aspect to a MR tomography device.
The invention relates in one aspect to a motor for a magnetic resonance (MR) tomography room, wherein a MR tomography device for a MR elastography imaging protocol is arranged within the MR tomography room, comprising:
- a rotational drive for supplying rotational energy to power a MR elastography transducer usable during the MR elastography imaging protocol and
- a support structure,
wherein the rotational drive comprises a terminal for connecting the MR elastography transducer to the rotational drive,
characterized in
a bearing means configured such that the position of the terminal relative to the support structure is adaptable along a trajectory predetermined by the bearing means,
wherein the rotational drive is mounted to the support structure via the bearing means.-
5.发明公开PROCEDE DE CARACTERISATION RHEOLOGIQUE D'UN MILIEU VISCOELASTIQUE 审中-公开VERFAHREN ZUR RHEOLOGISCHEN CHARAKTERISIERUNG EINES VISKOELASASCHEN MEDIUMS
公开(公告)号：EP2160597A2
公开(公告)日：2010-03-10
申请号：EP08806061.1
申请日：2008-06-23
IPC分类号： G01N29/024 , G01N29/032 , G01N29/06 , G01N29/07 , G01N29/11 , A61B8/08 , G01S7/52 , G01S15/89
CPC分类号： G01N29/032 , A61B8/08 , A61B8/485 , G01N29/024 , G01N29/06 , G01N29/07 , G01N29/11 , G01N2203/0094 , G01N2291/02475 , G01N2291/02483 , G01N2291/02491 , G01N2291/02827 , G01S7/52038 , G01S15/8906
摘要： Method for rheological characterization of a viscoelastic medium, comprising the following steps: (a) an excitation step during which a vibratory excitation is generated in the viscoelastic medium leading to a deformation of the medium, (b) a deformation measurement step during which the deformation of the medium caused by the excitation is observed, (c) and a characterization step during which at least one non-zero power parameter y is determined such that a rheological parameter of the medium x is equal to x(f ) = a + b.fy, where f is the frequency, a is a real number and b a non-zero scale parameter. It is thus possible to obtain mapping of the power parameter y.
摘要翻译： 粘弹性介质的流变学表征方法，具有以下步骤：（a）在粘弹性介质中产生振动激发导致介质变形的激发步骤，（b）变形测量步骤，其中变形 观察到由激励引起的介质，（c）和表征步骤，其中确定至少一个非零功率参数y，使得介质x的流变参数等于x（f）= a + b ·fy，其中f是频率，a是实数和ba非零比例参数。 因此可以获得功率参数y的映射。
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公开(公告)号：EP1866667A1
公开(公告)日：2007-12-19
申请号：EP06726152.9
申请日：2006-03-30
发明人： FINK, Mathias , SINKUS, Ralph , TANTER, Mickael , BERCOFF, Jeremy
CPC分类号： G01S15/8909 , A61B5/0051 , A61B8/0825 , A61B8/406 , A61B8/42 , A61B8/485 , G01S7/52026 , G06F19/00
摘要： The inventive imaging method consists in generating a mechanical wave having shearing and compressional components in a viscoelastic medium and in determining the movement parameter of said viscoelectic medium at different points during the propagation of said mechanical wave. Said method comprises a correction stage when the movement parameter is processed for eliminating errors caused by the compressional component of the mechanical wave.
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公开(公告)号：EP1866667B1
公开(公告)日：2014-02-26
申请号：EP06726152.9
申请日：2006-03-30
申请人： SUPER SONIC IMAGINE
发明人： FINK, Mathias , SINKUS, Ralph , TANTER, Mickael , BERCOFF, Jeremy
CPC分类号： G01S15/8909 , A61B5/0051 , A61B8/0825 , A61B8/406 , A61B8/42 , A61B8/485 , G01S7/52026 , G06F19/00
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