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51.发明授权Measuring diffusional anisotropy of ODF lobes having maxima peaks and minima troughs with diffusion weighted MRI 有权测量具有扩散加权MRI的具有最大峰值和最小波谷的ODF瓣的扩散各向异性公开(公告)号：US09255979B2
公开(公告)日：2016-02-09
申请号：US13444685
申请日：2012-04-11
IPC分类号： G01R33/563
CPC分类号： G01R33/56341
摘要： A method for measuring diffusional anisotropy in diffusion-weighted magnetic resonance imaging. The method includes determining an orientation diffusion function (ODF) for one or more fibers within a single voxel, wherein the ODF includes lobes representative of a probability of diffusion in a given direction for the one or more fibers. The method also includes characterizing an aspect ratio of the lobes. The method further includes determining a multi-directional anisotropy metric for the one or more fibers based on the aspect ratio of the lobes.
摘要翻译： 扩散加权磁共振成像中扩散各向异性的测量方法。 该方法包括确定单个体素内的一个或多个纤维的取向扩散函数（ODF），其中ODF包括代表一个或多个纤维在给定方向上的扩散概率的裂片。 该方法还包括表征凸角的纵横比。 所述方法还包括基于所述叶的宽高比来确定所述一个或多个光纤的多方向各向异性度量。
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52.发明授权Method and system for correction of lung density variation in positron emission tomography using magnetic resonance imaging 有权使用磁共振成像校正正电子发射断层扫描中肺密度变化的方法和系统公开(公告)号：US08942445B2
公开(公告)日：2015-01-27
申请号：US13618079
申请日：2012-09-14
申请人： Thomas Kwok-Fah Foo , Christopher Judson Hardy , Albert Henry Roger Lonn , Ravindra Mohan Manjeshwar , Dattesh Dayanand Shanbhag , Sheshadri Thiruvenkadam
发明人： Thomas Kwok-Fah Foo , Christopher Judson Hardy , Albert Henry Roger Lonn , Ravindra Mohan Manjeshwar , Dattesh Dayanand Shanbhag , Sheshadri Thiruvenkadam
IPC分类号： G06K9/00
CPC分类号： G06T11/008 , G06T7/11 , G06T7/12 , G06T2207/10088 , G06T2207/10104 , G06T2207/20221 , G06T2207/30061
摘要： Exemplary embodiments of the present disclosure are directed to correcting lung density variations in positron emission tomography (PET) images of a subject using a magnetic resonance (MR) image. A pulmonary vasculature and an outer extent of a lung cavity can be identified in a MR image corresponding to a thoracic region of the subject in response to an intensity associated with pixels in the MR image. The pixels within the outer extent of the lung cavity are classified as corresponding to the pulmonary vasculature or the lung tissue. Exemplary embodiments of the present disclosure can apply attenuation coefficients to a reconstruction of the PET image based on the classification of the pixels within the outer extent of the lung cavity.
摘要翻译： 本公开的示例性实施例涉及使用磁共振（MR）图像校正受试者的正电子发射断层摄影（PET）图像中的肺密度变化。 响应于与MR图像中的像素相关联的强度，可以在对应于受试者的胸部区域的MR图像中识别肺部脉管系统和肺腔的外部范围。 肺腔外部范围内的像素被分类为对应于肺血管或肺组织。 本公开的示例性实施例可以基于肺腔外部范围内的像素的分类，将衰减系数应用于PET图像的重建。
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53.发明授权Image correction using multichannel blind deconvolution with homomorphic filtering 有权使用具有同态滤波的多通道盲解卷积的图像校正公开(公告)号：US08868153B2
公开(公告)日：2014-10-21
申请号：US13451239
申请日：2012-04-19
CPC分类号： A61B5/055
摘要： A method includes obtaining a plurality of magnetic resonance (MR) coil images of a subject of interest, each MR coil image being generated from one of an array of MR receiving coils; combining the plurality of coil images to generate an image estimate of the subject of interest; performing a multichannel blind deconvolution (MBD) process including: deriving coil sensitivity information for every one of the array of MR receiving coils based on the image estimate or a filtered image estimate derived from the image estimate; updating the image estimate or the filtered image estimate using the derived coil sensitivity information to generate an updated image estimate; and applying a homomorphic filter to the image estimate to derive the filtered image estimate, or to the updated image estimate to derive a filtered updated image estimate, or a combination thereof.
摘要翻译： 一种方法包括获得感兴趣对象的多个磁共振（MR）线圈图像，每个MR线圈图像从MR接收线圈的阵列之一产生; 组合多个线圈图像以产生感兴趣对象的图像估计; 执行多通道盲解卷积（MBD）处理，包括：基于所述图像估计或从所述图像估计导出的滤波图像估计，导出所述MR接收线圈阵列中的每一个的线圈灵敏度信息; 使用导出的线圈灵敏度信息来更新图像估计或滤波图像估计以产生更新的图像估计; 以及将同态滤波器应用于所述图像估计以导出所述滤波图像估计，或对所述更新的图像估计来推导滤波的更新图像估计，或其组合。
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公开(公告)号：US20130271130A1
公开(公告)日：2013-10-17
申请号：US13444685
申请日：2012-04-11
IPC分类号： G01R33/48
CPC分类号： G01R33/56341
摘要： A method for measuring diffusional anisotropy in diffusion-weighted magnetic resonance imaging. The method includes determining an orientation diffusion function (ODF) for one or more fibers within a single voxel, wherein the ODF includes lobes representative of a probability of diffusion in a given direction for the one or more fibers. The method also includes characterizing an aspect ratio of the lobes. The method further includes determining a multi-directional anisotropy metric for the one or more fibers based on the aspect ratio of the lobes.
摘要翻译： 扩散加权磁共振成像中扩散各向异性的测量方法。 该方法包括确定单个体素内的一个或多个纤维的取向扩散函数（ODF），其中ODF包括代表一个或多个纤维在给定方向上的扩散概率的裂片。 该方法还包括表征凸角的纵横比。 所述方法还包括基于所述叶的宽高比来确定所述一个或多个光纤的多方向各向异性度量。
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55.发明申请PHOTONIC SYSTEM AND METHOD FOR OPTICAL DATA TRANSMISSION IN MEDICAL IMAGING SYSTEMS 有权光学数据传输在医学成像系统中的光学系统和方法公开(公告)号：US20130011139A1
公开(公告)日：2013-01-10
申请号：US13179298
申请日：2011-07-08
IPC分类号： H04J14/00
CPC分类号： H04B10/801 , A61B6/566 , A61B8/56 , G06F19/00 , G06F19/321 , H04J14/0298
摘要： A photonic system and method for optical data transmission in medical imaging system are provided. One photonic system includes a plurality of optical modulators having different optical resonance wavelengths and configured to receive electrical signals representative of a set of data from a medical imaging device. The photonic system also includes an optical waveguide interfacing with the plurality of optical modulators and configured to transmit an amplitude modulated beam of light at different frequencies to selectively modulate the plurality of optical modulators to transmit an encoded beam of light. The photonic system further includes receiver opto-electronics in communication with the optical waveguide configured to decode the encoded beam of light and convert the decoded beam of light into the electrical signals representative of the set of data.
摘要翻译： 提供了一种用于医学成像系统中光学数据传输的光子系统和方法。 一个光子系统包括具有不同光学共振波长的多个光学调制器，并且被配置为从医学成像设备接收表示一组数据的电信号。 光子系统还包括与多个光学调制器接口的光波导，并被配置为以不同的频率发射幅度调制的光束，以选择性地调制多个光学调制器以发射编码的光束。 光子系统还包括与光波导通信的接收器光电子器件，其被配置为对编码的光束进行解码，并将解码的光束转换成代表该组数据的电信号。
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56.发明申请NANOPHOTONIC SYSTEM FOR OPTICAL DATA AND POWER TRANSMISSION IN MEDICAL IMAGING SYSTEMS 审中-公开用于医学成像系统中的光学数据和功率传输的纳米系统公开(公告)号：US20120146646A1
公开(公告)日：2012-06-14
申请号：US12964561
申请日：2010-12-09
CPC分类号： G01R33/3692 , A61B5/0013 , A61B5/0017 , A61B5/055 , A61B6/037 , A61B6/56 , A61B8/44 , A61B8/56 , H04J14/0254
摘要： The present disclosure is directed towards the transmission of data and/or power using nanophotonic elements. For example, in one embodiment, a medical imaging system is provided. The imaging system includes a multiplexed photonic data transfer system having an optical modulator configured to receive an electrical signal representative of a set of data and being operable to modulate a subset of photons defined by time, wavelength, or polarization contained within a beam of light so as to encode the photons with the set of data to produce encoded photons, an optical waveguide interfacing with at least a portion of the optical modulator and configured to transmit the beam of light so as to allow the photons to be modulated by the optical modulator, an optical resonator in communication with the optical waveguide and configured to remove the encoded photons from the beam of light, and a transducer optically connected to the optical resonator and configured to convert the encoded photons into the electrical signal representative of the set of data.
摘要翻译： 本公开涉及使用纳米光子元件传输数据和/或功率。 例如，在一个实施例中，提供了一种医学成像系统。 成像系统包括具有光学调制器的多路复用光子数据传输系统，该光学调制器被配置为接收表示一组数据的电信号，并且可操作地调制由光束包含的时间，波长或偏振所限定的光子子集，因此 为了用该组数据对光子进行编码以产生编码的光子;光波导，与光调制器的至少一部分相连，并被配置为传输光束以允许光子被光调制器调制， 与光波导通信并被配置为从光束中去除编码的光子的光学谐振器，以及光学连接到光学谐振器并被配置为将编码的光子转换成代表该组数据的电信号的换能器。
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公开(公告)号：US07612564B1
公开(公告)日：2009-11-03
申请号：US12112065
申请日：2008-04-30
IPC分类号： G01V3/00
CPC分类号： G01R33/3415 , G01R33/365
摘要： A phased array for a magnetic resonance (MR) imaging apparatus is disclosed that includes a plurality of receiver coils arranged to form a staggered hexagonal coil array, with the staggered hexagonal coil array being rectangular in shape. Included in the plurality of receiver coils are a plurality of standard coils and a plurality of filler coils differing in shape from the standard coils. The shape of the filler coils is such that no more than negligible mutual inductance between the filler coils and all adjacent overlapping standard coils is present.
摘要翻译： 公开了一种用于磁共振（MR）成像设备的相控阵列，其包括布置成形成交错六边形线圈阵列的多个接收器线圈，其中交错的六边形线圈阵列的形状为矩形。 包括在多个接收器线圈中的是多个标准线圈和多个与标准线圈不同形状的填充线圈。 填充线圈的形状使得填充线圈和所有相邻的重叠标准线圈之间的互感不可忽略。
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公开(公告)号：US07498813B2
公开(公告)日：2009-03-03
申请号：US11677655
申请日：2007-02-22
申请人： Randy Otto John Giaquinto , Charles Lucien Dumoulin , Christopher Judson Hardy , Harvey Ellis Cline
发明人： Randy Otto John Giaquinto , Charles Lucien Dumoulin , Christopher Judson Hardy , Harvey Ellis Cline
IPC分类号： G01V3/00
CPC分类号： G01R33/3415 , G01R33/34007 , G01R33/365
摘要： A coil array for use in magnetic resonance imaging (MRI) is provided and comprises a plurality of low loss coil elements and at least one non-conducting substrate adapted to position the plurality of low loss coil elements in a fixed position thereon. Further, a coil array assembly for use in a magnetic resonance imaging (MRI) scanner is provided. The coil array assembly comprises a pair of coil arrays, wherein each coil array comprises: a plurality of low loss coil elements and at least one non-conducting substrate adapted to position the plurality of low loss coil elements in a fixed position thereon. Further, the pair of coil arrays are coupled to the MRI scanner for receiving imaging signals in a region of interest excited within the pair of coil arrays. Further, the coil array is adapted for use in breast imaging.
摘要翻译： 提供了用于磁共振成像（MRI）的线圈阵列，并且包括多个低损耗线圈元件和适于将多个低损耗线圈元件定位在其上的固定位置的至少一个非导电衬底。 此外，提供了一种用于磁共振成像（MRI）扫描仪的线圈阵列组件。 线圈阵列组件包括一对线圈阵列，其中每个线圈阵列包括：多个低损耗线圈元件和适于将多个低损耗线圈元件定位在其上的固定位置的至少一个非导电衬底。 此外，该对线圈阵列耦合到MRI扫描器，用于在该对线圈阵列内激发的感兴趣区域中接收成像信号。 此外，线圈阵列适用于乳房成像。
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公开(公告)号：US07365542B1
公开(公告)日：2008-04-29
申请号：US11554951
申请日：2006-10-31
IPC分类号： G01V3/00
CPC分类号： G01R33/3415 , G01R33/34007 , G01R33/34084
摘要： An RF coil assembly includes a plurality of coil supports rotatably interconnected to each other. Each coil support is configured to rotate with respect to at least one adjoining coil support. A plurality of RF coils is connected to each coil support.
摘要翻译： RF线圈组件包括可互相互连的多个线圈支架。 每个线圈支撑件构造成相对于至少一个相邻的线圈支撑件旋转。 多个RF线圈连接到每个线圈支架。
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60.发明授权公开(公告)号：US06275721B1
公开(公告)日：2001-08-14
申请号：US09332087
申请日：1999-06-10
IPC分类号： A61B5055
CPC分类号： G01R33/54
摘要： A scan control device located in the bore of an MRI system magnet includes tracking coils and a display. Location and alignment of the scan control device is tracked by the MRI system using signals acquired from the tracking coils. These signals are also used to update the scan parameters such that the scan plane of the image acquired by the MRI system is controlled by the scan control device location and orientation. The image is produced on the display to provide an attending physician with interactive control of the image from the magnet bore.
摘要翻译： 位于MRI系统磁体的孔中的扫描控制装置包括跟踪线圈和显示器。 扫描控制装置的位置和对准由MRI系统使用从跟踪线圈获取的信号来跟踪。 这些信号也用于更新扫描参数，使得由MRI系统获取的图像的扫描平面由扫描控制装置的位置和取向控制。 该图像在显示器上产生，以向主治医师提供来自磁体孔的图像的交互控制。
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