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    METHOD AND SYSTEM FOR PERFORMING BASEBAND DIGITAL RECEIVER BEAMFORMING ON ULTRASOUND SIGNALS
    21.
    发明申请
    METHOD AND SYSTEM FOR PERFORMING BASEBAND DIGITAL RECEIVER BEAMFORMING ON ULTRASOUND SIGNALS 审中-公开

    公开(公告)号：US20170184716A1

    公开(公告)日：2017-06-29

    申请号：US15385087

    申请日：2016-12-20

    申请人： ESAOTE S.p.A.

    发明人： Giovanni BINI

    IPC分类号： G01S7/52 ,  A61B8/00

    CPC分类号： G01S7/52095 ,  A61B8/4444 ,  A61B8/4483 ,  G01S7/52026 ,  G01S7/52047 ,  G01S7/52092 ,  G10K11/346

    摘要： Methods and systems are provided that perform baseband beamforming of ultrasound signals. The methods and systems obtain receive signals from transducers of an ultrasound probe and demodulate the receive signals to obtain complex receive signals having in-phase (I) and quadrature (Q) components. The methods and systems apply time delay and phase correction to the complex receive signals to form delayed complex receive signals before summing the delayed complex receive signals to produce a coherent receive signal. The phase correction includes applying coarse and fine corrections where the coarse correction is calculated as a multiple of a sampling time and the fine correction is calculated as a fraction of the sampling time. The methods and systems apply the coarse and fine corrections contemporaneously by multiplying the complex receive signal by a complex carrier delayed by a multiple of the sampling time and delayed by the fraction of the sampling time.

    Magnetic resonance imaging apparatus
    22.
    发明授权
    Magnetic resonance imaging apparatus 有权
    磁共振成像装置

    公开(公告)号：US08755863B2

    公开(公告)日：2014-06-17

    申请号：US13759762

    申请日：2013-02-05

    申请人： Esaote S.p.A.

    发明人： Luigi Satragno ,  Eugenio Biglieri ,  Fabio Rezzonico ,  Osvaldo Pugliese ,  Orfeo Contrada ,  Alessandro Trequattrini

    IPC分类号： A61B5/05

    CPC分类号： A61B5/0555 ,  A61B5/004 ,  A61B5/055 ,  A61B5/702 ,  G01R33/3806

    摘要： A magnetic resonance imaging apparatus includes a magnet having two poles and a wall connecting the poles; the poles delimiting a patient-imaging space; and a table which is slidably connected to one of the two poles between the two poles and which table extends substantially parallel to the two poles; a drive for displacing the table relative to the magnet; a lock for locking the table in a selected position relative to the magnet; a drive for rotating the magnet about the axis; the table connected to the magnet such that the table rotates with the magnet when the magnet rotates about the axis; the magnet and the table being rotatable from a position in which the poles and the table are horizontal to a position in which the table and the poles are vertical.

    摘要翻译： 磁共振成像装置包括具有两极的磁体和连接极的壁; 极点限定了患者成像空间; 以及桌子，其可滑动地连接到两个极之间的两个极中的一个，并且所述台基本上平行于两个极延伸; 用于使桌子相对于磁体移动的驱动器; 用于将桌子相对于磁体锁定在选定位置的锁; 用于使磁体绕轴旋转的驱动器; 所述工作台连接到所述磁体，使得当所述磁体围绕所述轴旋转时，所述工作台与所述磁体一起旋转; 磁铁和桌子可以从磁极和台面水平的位置旋转到桌子和电极垂直的位置。

    Method of correcting inhomogeneity of the static magnetic field generated by the magnet of a mri machine and device for carrying out such method
    23.
    发明申请
    Method of correcting inhomogeneity of the static magnetic field generated by the magnet of a mri machine and device for carrying out such method 有权
    校正由mri机器的磁体产生的静磁场的不均匀性和用于执行这种方法的装置的方法

    公开(公告)号：US20140028311A1

    公开(公告)日：2014-01-30

    申请号：US13922573

    申请日：2013-06-20

    申请人： Esaote S.p.A.

    发明人： Vincenzo PUNZO

    IPC分类号： G01R33/3875

    CPC分类号： G01R33/3875 ,  G01R33/3806 ,  G01R33/3808 ,  G01R33/383 ,  G01R33/385 ,  G01R33/3873

    摘要： The present invention relates to a method of correcting inhomogeneity of the static magnetic field generated by the magnet of a Nuclear Magnetic Resonance imaging machine, wherein the magnet is flat and the magnetic field on one side of said magnet is corrected such that a volume is defined, which is bounded by a spherical cap surface, in which volume and along which surface the magnetic field is homogeneous, i.e. has field lines having equal parallel directions and equal intensities.

    摘要翻译： 本发明涉及一种校正由核磁共振成像机的磁体产生的静磁场的不均匀性的方法，其中磁体平坦，并且校正所述磁体一侧的磁场，从而定义体积 ，其由球形盖表面限定，其中体积和沿着该表面的磁场是均匀的，即具有具有相等的平行方向和相等的强度的场线。

    SYSTEM AND METHOD FOR ACQUIRING DIAGNOSTIC IMAGES BY ULTRASOUNDS
    24.
    发明公开
    SYSTEM AND METHOD FOR ACQUIRING DIAGNOSTIC IMAGES BY ULTRASOUNDS 审中-公开

    公开(公告)号：US20240237968A1

    公开(公告)日：2024-07-18

    申请号：US18407510

    申请日：2024-01-09

    申请人： Esaote S.p.A.

    发明人： Stefano De Beni

    IPC分类号： A61B8/00

    CPC分类号： A61B8/4494 ,  A61B8/4254 ,  A61B8/4405 ,  A61B8/4433 ,  A61B8/565

    摘要： A system for acquiring ultrasound diagnostic images, comprises:



    an ultrasound imaging device comprising:

    a probe provided with one or more electroacoustic transducers;
    a unit transmitting an ultrasonic beam through the transducers within a body under examination;
    a unit receiving and processing ultrasound signals received from the transducers for generating real-time images;


    a probe tracking system comprising probe detecting sensors and a processing unit for calculating the probe position and/or the probe orientation and/or the probe displacement from the data provided by the probe detecting sensors,
    wherein at least the processing unit of the probe tracking unit is a physically separated unit from the ultrasound imaging device and said ultrasound imaging device and said probe tracking system communicate by means of a short-range wireless communication protocol being provided respectively with a corresponding transmitting and/or receiving communication unit.

    METHOD AND ULTRASOUND SYSTEM FOR SHEAR WAVE ELASTICITY IMAGING
    27.
    发明申请
    METHOD AND ULTRASOUND SYSTEM FOR SHEAR WAVE ELASTICITY IMAGING 有权

    公开(公告)号：US20220104794A1

    公开(公告)日：2022-04-07

    申请号：US17493596

    申请日：2021-10-04

    申请人： Esaote S.p.A.

    发明人： Stefano DE BENI ,  Marco CROCCO

    IPC分类号： A61B8/08 ,  A61B8/00 ,  G06N20/00

    摘要： A method and system for two-dimensional shear wave elastography imaging (SWEI) that acquires B-mode ultrasound image of a region, selects an area of the B-mode image, automatically acquires two-dimensional shear wave elastography imaging data related to the selected area, and displays elasticity/velocity map on the selected area and optionally a reliability map. An algorithm takes as input one or combination of data sets selected from B-mode raw data or B-mode image data or elasticity/velocity map or reliability map or raw two-dimensional shear wave elastography imaging data inside selected area, or two-dimensional shear wave elastography imaging data at an intermediate stage of processing like displacement curves over time or their peak features, and outputs the 2D coordinate of measure ROI center. Measure ROI overlapped on the B-mode image and/or on the elasticity map and/or on the reliability map is displayed. An elasticity parameter inside the measure ROI is computed, optionally weighted, and displayed.

    Method for designing gradient coils for MRI systems, gradient coils for MRI systems obtained by the said method and MRI system comprising such gradient coils
    29.
    发明授权
    Method for designing gradient coils for MRI systems, gradient coils for MRI systems obtained by the said method and MRI system comprising such gradient coils 有权

    公开(公告)号：US11204406B2

    公开(公告)日：2021-12-21

    申请号：US16510121

    申请日：2019-07-12

    申请人： ESAOTE S.p.A.

    发明人： Vincenzo Punzo

    IPC分类号： G01R33/385 ,  G01R33/565 ,  G01R33/36 ,  G01R33/3873 ,  G01R33/3875

    摘要： A method for designing gradient coils includes the following steps: a) defining an imaging volume as an ellipsoid; b) defining an elliptic-cylindrical surface enclosing the said ellipsoid; c) defining the current density at each point of the surface by a series of basis functions and corresponding coefficients expressed in elliptic cylindrical coordinates; d) describing the magnetic field generated at a generic point by the above defined current density integrated all over the said entire elliptic-cylindrical surface; e) determining the values of the coefficients of the basis functions by solving the inverse function for describing the magnetic field; f) generating a discrete winding patter of a gradient coil by using a stream function method from the continuous current density and by using a series of scattered contours of the stream function as the design of the winding patters according to a set total number of windings.