公开(公告)号：US20160078623A1

公开(公告)日：2016-03-17

申请号：US14854421

申请日：2015-09-15

申请人： Leonardo Forzoni ,  Stefano De Beni ,  Sara D'Onofrio ,  Lorenzo Bessi

发明人： Leonardo Forzoni ,  Stefano De Beni ,  Sara D'Onofrio ,  Lorenzo Bessi

IPC分类号： G06T7/00 ,  G06T11/00 ,  G06T11/60

CPC分类号： G06T7/0016 ,  G06T7/33 ,  G06T7/38 ,  G06T11/003 ,  G06T11/60 ,  G06T2207/10016 ,  G06T2207/10088 ,  G06T2207/10136 ,  G06T2207/20221 ,  G06T2207/30016 ,  G06T2207/30044 ,  G06T2207/30101

摘要： A method of fusing ultrasound images with pre-acquired images includes acquiring a first 3D ultrasound image in real-time; identifying at least one known reference pattern or object within a pre-acquired 3D image and the 3D ultrasound image; registering the real-time 3D ultrasound image with the pre-acquired 3D image by using the reference pattern or object; fusing the 3D ultrasound images of a sequence of real-time 3D ultrasound images; with the pre-acquired 3D image using data of the co-registration; and displaying fusion tomographic images, each including the corresponding real-time ultrasound image and the pre-acquired image. The registration between real-time 3D ultrasound images and the pre-acquired 3D image is performed continuously in the background by continuing to acquire the real-time 3D ultrasound images and to register them with the pre-acquired 3D images using the reference pattern or patterns or the object or objects.

摘要翻译： 将超声图像与预先获取的图像融合的方法包括实时获取第一3D超声图像; 识别预先获取的3D图像和3D超声图像内的至少一个已知参考图案或对象; 通过使用参考图案或对象与预先获取的3D图像一起登记实时3D超声图像; 融合一系列实时三维超声图像的三维超声图像; 使用预先获取的3D图像使用共同注册的数据; 以及显示各自包括相应的实时超声图像和预取得图像的融合断层图像。 通过继续获取实时3D超声图像并使用参考图案或图案将其预先获取的3D图像注册到实时3D超声图像与预先获取的3D图像之间的配准在背景中连续执行 或对象或对象。

公开(公告)号：US20150276911A1

公开(公告)日：2015-10-01

申请号：US14669066

申请日：2015-03-26

申请人： Vincenzo Punzo

发明人： Vincenzo Punzo

IPC分类号： G01R33/565 ,  G01R33/383 ,  G01R33/3873 ,  G01R33/48

CPC分类号： G01R33/56572 ,  G01R33/383 ,  G01R33/3873 ,  G01R33/4822

摘要： A shimming method for correcting inhomogeneity of a static magnetic field generated by a magnet of a nuclear magnetic resonance imaging machine includes: measuring the magnetic field at a plurality of points over a reference surface; generating a polynomial that solves Laplace's equation with boundary conditions given on the reference surface, the polynomial representing the magnetic field on the reference surface and having a plurality of harmonic terms, each associated with a coefficient; determining the coefficients from the field sampling values; defining a grid for positioning a plurality of correction elements and relating it to the field structure; and calculating the position and magnitude parameters of the correction elements, such that the correction elements affect the coefficients of the magnetic field to obtain the desired field characteristics, wherein the reference surface is a superquadric surface, such that the magnetic field is corrected in a volume delimited by the superquadric surface.

摘要翻译： 用于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匀场方法包括：测量参考表面上的多个点处的磁场; 生成一个多项式，其解决了在参考表面上给出的边界条件的拉普拉斯方程，多项式表示参考表面上的磁场并具有多个谐波项，每个与系数相关联; 根据场采样值确定系数; 定义用于定位多个校正元件并将其与场结构相关联的网格; 以及计算所述校正元件的位置和幅度参数，使得所述校正元件影响所述磁场的系数以获得期望的场特性，其中所述参考表面是超四次表面，使得所述磁场被校正为体积 由超级表面划分。

公开(公告)号：US08911376B2

公开(公告)日：2014-12-16

申请号：US12763256

申请日：2010-04-20

申请人： Marino Cerofolini

发明人： Marino Cerofolini

IPC分类号： A61B8/14 ,  B06B1/06 ,  H01L41/053 ,  H01L41/047

CPC分类号： B06B1/0622 ,  A61B8/14 ,  B06B1/06 ,  H01L41/047 ,  H01L41/053

摘要： An electroacoustic transducer assembly and probe for emitting and receiving acoustic radiation beams. The transducer assembly comprising an array of electroacoustic transducers composed of a plurality of individual transducer elements each one being composed of an electroacoustic element. A means for defocusing a radiation pulse emitted from the transducer element is associated with each transducer element. The defocusing means is constructed and arranged to cause the radiation pulse to generate a substantially cylindrical or spherical acoustic field.

摘要翻译： 用于发射和接收声辐射束的电声换能器组件和探头。 换能器组件包括由多个单独的换能器元件组成的电声换能器阵列，每个换能器元件由电声元件组成。 用于使从换能器元件发射的辐射脉冲散焦的装置与每个换能器元件相关联。 散焦装置被构造和布置成使辐射脉冲产生大致圆柱形或球形的声场。

公开(公告)号：US08672849B2

公开(公告)日：2014-03-18

申请号：US13322544

申请日：2010-08-27

申请人： Fabio Andreuccetti ,  Piero Tortoli

发明人： Fabio Andreuccetti ,  Piero Tortoli

IPC分类号： A61B8/08

CPC分类号： G01S15/8913 ,  A61B8/06 ,  A61B8/0816 ,  A61B8/13 ,  A61B8/463 ,  A61B8/488 ,  G01S7/52066 ,  G01S15/8927 ,  G01S15/8984

摘要： A method for ultrasonic detection and imaging of hemodynamic information includes the steps of transmitting ultrasonic pulses into a body, which are generated by an array of electro-acoustic transducers arranged in a predetermined order and design; receiving reflected pulses with an array of receiving electro-acoustic transducers, which generate receive signals upon stimulation of the reflected pulses, the succession of pulses transmitted to or received from the body being focused along one or more scan lines; generating a Doppler frequency shift signal resulting from the reflection of pulses transmitted by a blood flow into a vessel intersected by the scan line, in a point and along the scan line, or along a direction of propagation of a pulse; determining the direction of blood flow velocity from the average frequency value of Doppler shift frequencies; and displaying the direction of blood flow velocity by graphical and/or chromatic representation differentiating opposite directions.

摘要翻译： 一种用于血液动力学信息的超声波检测和成像的方法包括以下步骤：将超声波脉冲发射到体内，其通过以预定顺序和设计布置的电声换能器阵列产生; 接收具有接收电声换能器阵列的反射脉冲，其在刺激反射脉冲时产生接收信号，传送到身体或从身体接收的脉冲的一连串沿着一条或多条扫描线聚焦; 产生多普勒频移信号，所述多普勒频移信号是由血流传输到与扫描线相交的血管中的脉冲的反射产生的，沿着扫描线或沿着脉冲的传播方向; 从多普勒频移的平均频率值确定血流速度的方向; 以及通过区分相反方向的图形和/或彩色表示来显示血流速度的方向。

公开(公告)号：US08610436B2

公开(公告)日：2013-12-17

申请号：US12899176

申请日：2010-10-06

申请人： Stefano Besio ,  Stefano Pittaluga ,  Vincenzo Punzo ,  Alessandro Trequattrini

发明人： Stefano Besio ,  Stefano Pittaluga ,  Vincenzo Punzo ,  Alessandro Trequattrini

IPC分类号： G01V3/00

CPC分类号： G01R33/383 ,  Y10T29/49764

摘要： Method for making magnets particularly for the use in MRI scanners, which magnets are three-dimensional and have a tubular wall made of magnetized material, with a closed or open annular shaped cross-section, the tubular wall being composed of individual elements made of magnetized material, the magnetization of each element made of magnetized material having a predetermined direction in the transverse section plane and said directions being determined such to generate a uniform static magnetic field in the cavity of the tubular wall. The invention provides the following steps: determining the modulus and direction of the magnetization of elements necessary for generating a predetermined magnetic field in said cavity in a theoretical two-dimensional magnet model, extruding the two-dimensional model to a three-dimensional model and at least partially compensating aberrations, distortions or inhomogeneites of the magnetic field generated in the three-dimensional model by modifying the magnetization orientation in the individual elements and in the plane of the two-dimensional model such to minimize differences between the magnetic field in the two-dimensional model and the magnetic field in the three-dimensional model above all as regards its homogeneity level. The invention relates also to a magnet made by said method and particularly a small magnet.

摘要翻译： 用于制造磁铁的方法，特别是用于MRI扫描仪，其磁体是三维的并且具有由磁化材料制成的管状壁，具有闭合或开放的环形横截面，所述管状壁由被磁化的单个元件组成 材料，在横截面中具有预定方向的磁化材料制成的每个元件的磁化和所述方向被确定为在管状壁的空腔中产生均匀的静磁场。 本发明提供以下步骤：确定在理论二维磁体模型中在所述腔中产生预定磁场所必需的元件的磁化强度的模量和方向，将二维模型挤压成三维模型， 通过修改各个元件中的磁化取向和二维模型的平面中的最小化在三维模型中产生的磁场的像差，失真或​​不均匀性来最小化部分补偿，以最小化二维模型中的磁场之间的差异， 三维模型和三维模型中的磁场首先是其均匀性水平。 本发明还涉及由所述方法制成的磁体，特别是小磁体。

公开(公告)号：US08457710B2

公开(公告)日：2013-06-04

申请号：US11873548

申请日：2007-10-17

申请人： Eugenio Biglieri ,  Luigi Satragno

发明人： Eugenio Biglieri ,  Luigi Satragno

IPC分类号： A61B5/05

CPC分类号： A61B5/0555

摘要： A method for determining information for a diagnosis of pathologic conditions of the anatomical region of the pelvic floor by MRI imaging includes acquiring a sequence of MRI images along one or more predetermined section planes or inside a predetermined three-dimensional area, which planes intersect or which three-dimensional area contains at least a part of the pelvic floor. The image sequence is acquired for a time interval coinciding with or including at least a part of the length of the physiological process evacuating natural solids or liquids carried out on the basis both of a natural stimulation and an induced stimulation or during a simulation of physiological processes evacuating solids or liquids by introducing foreign bodies or substances simulating natural products. The method further includes generating a film of the cinematographic type by using as individual frames one or more images of the sequence and displaying the film for visually verifying the dynamic-morphologic behavior of organs of the pelvic floor.

摘要翻译： 用于通过MRI成像确定用于诊断骨盆底部解剖区域的信息的信息的方法包括沿着一个或多个预定部分平面或在预定的三维区域内或在预定的三维区域内，或者在 三维区域至少包含骨盆底部的一部分。 获取图像序列的时间间隔与天然固体或液体的生理过程的长度的至少一部分重合或包括在天然刺激和诱导刺激的基础上进行或在模拟生理过程期间进行的时间间隔 通过引入模拟天然产物的异物或物质来排除固体或液体。 该方法还包括通过使用作为单独帧的序列的一个或多个图像来生成电影类型的胶片，并且显示该胶片以便目视验证盆底器官的动态形态行为。

公开(公告)号：US20120286785A1

公开(公告)日：2012-11-15

申请号：US13519864

申请日：2011-01-18

申请人： Stefano Besio ,  Felice Badino ,  Davide Carlini ,  Stefano Pittaluga ,  Vincenzo Punzo ,  Alessandro Trequattrini

发明人： Stefano Besio ,  Felice Badino ,  Davide Carlini ,  Stefano Pittaluga ,  Vincenzo Punzo ,  Alessandro Trequattrini

IPC分类号： G01R33/34

CPC分类号： G01R33/3806 ,  G01R33/381 ,  G01R33/383 ,  G01R33/3873 ,  G01R33/3875

摘要： A Magnetic Resonance apparatus includes a 3D structure having a cavity for receiving a body under examination, a mechanism for generating a static magnetic field in the patient receiving cavity, a mechanism for generating variable magnetic fields in the cavity, an antenna for transmitting electromagnetic nuclear spin excitation pulses, an antenna for receiving the electromagnetic signals generated by nuclear spin relaxation, a plate for locating and fixing magnetic dipoles for fine correction of magnetic field homogeneity, and a compartment for the magnetic correction dipole locating and fixing plate, the compartment being adapted to be opened for direct access to the magnetic correction dipole locating and fixing plate from the outside. The compartment may be opened either by removal of an end plate of the magnetic field generating mechanism, or via a lateral slot for insertion and removal of the magnetic correction dipole locating and fixing plate.

摘要翻译： 磁共振装置包括具有用于接收检查体的空腔的3D结构，用于在患者容纳腔中产生静磁场的机构，用于在空腔中产生可变磁场的机构，用于传输电磁核旋转的天线 激励脉冲，用于接收由核自旋弛豫产生的电磁信号的天线，用于定位和固定用于磁场均匀性的精细校正的偶极子的板，以及用于磁校正偶极定位和固定板的隔间， 打开以从外部直接进入磁性校正偶极定位和固定板。 可以通过移除磁场产生机构的端板，或者通过用于插入和移除磁性校正偶极定位和固定板的侧向槽来打开隔间。

公开(公告)号：US08273026B2

公开(公告)日：2012-09-25

申请号：US11334286

申请日：2006-01-18

申请人： Marino Cerofolini

发明人： Marino Cerofolini

IPC分类号： A61B8/00

CPC分类号： A61B8/14 ,  A61B8/4461 ,  A61B8/483 ,  G01S15/8918 ,  G01S15/892 ,  G01S15/894 ,  G01S15/8993

摘要： An ultrasonic imaging method particularly for 3D gynaecologic inspections provides an ultrasound probe having a number of transducers forming a linear array. An imaging scanning unit connected to the transducers alternatively generates electric driving signals for each transducer. The probe is oscillated in a direction transversal to the longitudinal extension of the linear array of transducers and around an axis coinciding or parallel to the longitudinal extensions of the linear array of transducers to modify the orientation of the direction of propagation of the ultrasound signals. The ultrasound beams are steered so that the linear array of transducers generates a trapezoidal scanning slice or plane diverging in the direction of propagation of the beams.

摘要翻译： 特别用于3D妇科检查的超声成像方法提供了具有形成线性阵列的多个换能器的超声探头。 连接到换能器的成像扫描单元交替地产生用于每个换​​能器的电驱动信号。 探头在与换能器的线性阵列的纵向延伸方向横向的方向上振荡，并围绕与换能器的线性阵列的纵向延伸线重合或平行的轴线，以改变超声信号的传播方向的取向。 超声波束被转向，使得换能器的线性阵列产生在波束传播方向上发散的梯形扫描切片或平面。

公开(公告)号：US08172594B2

公开(公告)日：2012-05-08

申请号：US12547531

申请日：2009-08-26

申请人： Marco Brusacà ,  Federico Cau

发明人： Marco Brusacà ,  Federico Cau

IPC分类号： H01R11/22

CPC分类号： H01R13/193 ,  A61B8/44 ,  H01R12/88 ,  H01R13/22

摘要： A multi-pole connector has a first movable or plug-in connector member (30) with a plurality of electric contacts (131) supported by a terminal strip (31). The electric contacts are arranged in a pattern. The movable member (30) is designed to be mechanically and electrically coupled to a framework (1) which includes a second stationary, spring-biased connector member (5) which has at least one terminal strip (4, 4′) with a plurality of electric contact terminals (104, 104′) thereon, in the form of islands of material arranged in the same pattern. The movable member (30) is to be inserted into a fixed slide guide (103) and the connector member (5) is urged by springs (7) to bring terminal strips (4, 4′) into an electrical connection position with movable member (30) and a rotatable shaft (106) with cam (306) is used to move the stationary member (5) away from such position, to thereby permit release of the movable member (30).

摘要翻译： 多极连接器具有第一可移动或插入式连接器构件（30），其具有由端子条（31）支撑的多个电触点（131）。 电触头以图案布置。 可移动构件（30）被设计成机械地和电耦合到框架（1），框架（1）包括第二固定的弹簧偏压的连接器构件（5），该连接器构件具有至少一个端子条（4,4'），其具有多个 的电接触端子（104,104'），以相同图案布置的材料岛的形式。 可移动构件（30）将被插入到固定的滑动导轨（103）中，并且连接器构件（5）被弹簧（7）推动，使端子条（4,4'）与可动构件 （30）和具有凸轮（306）的可旋转轴（106）用于使静止构件（5）远离该位置移动，从而允许可移动构件（30）的释放。

公开(公告)号：US08142358B2

公开(公告)日：2012-03-27

申请号：US11448532

申请日：2006-06-07

申请人： Gianni Pedrizzetti ,  Marchese Emidio ,  Tonti Giovanni

发明人： Gianni Pedrizzetti ,  Marchese Emidio ,  Tonti Giovanni

IPC分类号： A61B8/00

CPC分类号： A61B8/0858 ,  A61B8/463 ,  A61B8/486 ,  A61B8/543 ,  G01S7/52066 ,  G01S7/52087

摘要： A measurement method of time varying events in a target body, including the steps of (a) providing time dependent measurements signals of parameters of the time varying events in the target body, (b) providing ecographic M-mode image data whose spatial direction is along scan-lines or along a line or curve on a 2D or 3D image of an image sequence, (c) defining a time interval within which the measurement signal has to be displayed and/or evaluated, (d) generating bi-dimensional graph information, (e) generating bi-dimensional M-mode images, (f) determining the time instant of begin of the time interval having a univoquely relation to time varying events, (g) rescaling the time scale of each graph, and (h) displaying the graph of the function corresponding to one or more of the time dependent measurement signal on a background.

摘要翻译： 一种目标体中的时变事件的测量方法，包括以下步骤：（a）提供目标体中时变事件参数的时间相关测量信号，（b）提供空间方向为 沿着扫描线或沿着图像序列的2D或3D图像上的线或曲线，（c）定义测量信号必须在其中显示和/或评估的时间间隔，（d）生成二维图 信息，（e）生成双维M模式图像，（f）确定与时变事件具有不成立关系的时间间隔开始的时刻，（g）重新缩放每个图的时间标度，和（h ）显示与背景上的时间相关测量信号中的一个或多个对应的功能的图形。