公开(公告)号：US07166999B2

公开(公告)日：2007-01-23

申请号：US11074964

申请日：2005-03-07

申请人： G. Randy Duensing

发明人： G. Randy Duensing

IPC分类号： G01V3/00

CPC分类号： G01R33/3415 ,  G01R33/5611 ,  G01R33/5659

摘要： The subject invention pertains to methods and apparatus for producing excitation for magnetic resonance imaging (MRI) from a plurality of local exciting elements such that each local exciting element's excitation is independent of the other local exciting elements' excitation. The methods and apparatus of the subject invention can be utilized in magnetic resonance imaging (MRI) and in magnetic resonance spectroscopy (MRS), where MRI produces a magnitude for each pixel that combines many frequency components, typically for magnitude images, and MRS produces a spectrum of outputs over a range of frequencies for each pixel, typically a spectral output. The subject method and apparatus can be utilized for exciting proton, and/or other imaging materials relating to spin magnetization, such as, but not limited to, phosphorous, carbon, and fluorine. In a specific embodiment, the subject invention achieves the independence of the local exciting elements' excitations via serial means, such that excitation is produced by each local exciting element at a different time than the other local exiting elements.

摘要翻译： 本发明涉及用于从多个局部激励元件产生用于磁共振成像（MRI）的激励的方法和装置，使得每个局部激发元件的激发独立于其他局部激发元件的激发。 本发明的方法和装置可用于磁共振成像（MRI）和磁共振波谱（MRS），其中MRI产生用于组合许多频率分量的每个像素的幅度，通常用于幅度图像，MRS产生 每个像素的频率范围内的输出频谱，通常是频谱输出。 本发明的方法和装置可以用于激发质子，和/或与自旋磁化有关的其它成像材料，例如但不限于磷，碳和氟。 在具体实施例中，本发明通过串联装置实现了局部激励元件的激励的独立性，使得在与其它局部出射元件不同的时间处由每个局部激励元件产生激励。

公开(公告)号：US07145339B2

公开(公告)日：2006-12-05

申请号：US11245500

申请日：2005-10-07

申请人： Charles A. Saylor ,  G. Randy Duensing

发明人： Charles A. Saylor ,  G. Randy Duensing

IPC分类号： G01V3/00

CPC分类号： G01R33/422 ,  G01R33/34046

摘要： The subject invention pertains to a technique and device that can isolate and separate resultant electromagnetic fields of volume coils at high frequency. In an embodiment, an RF shield can be used to isolate and separate resultant electromagnetic fields. In an embodiment, the shield can have a cylindrical shape that can form a partially closed volume in which an object to be imaged, or sample, can be inserted. In an embodiment, the RF shield can be part of a RF coil. In a specific embodiment, some parts of a volume coil can be inside a shield, and the other parts of a volume coil can be outside the shield. The shielding of some of the parts of a volume coil can create conductor patterns corresponding to the specific parts inside the shield and the specific parts outside the shield. In an embodiment, two or more conductor patterns can be placed in proximity to the same shield and either be driven independently, driven together, or act as receiving elements, combined or uncombined. This embodiment is advantageous because the combination of conductor patterns can be optimized by the flexibility of separating the fields of end-rings from the fields of leg currents.

摘要翻译： 本发明涉及一种能够以高频隔离并分离体积线圈的合成电磁场的技术和装置。 在一个实施例中，可以使用RF屏蔽来隔离和分离所得到的电磁场。 在一个实施例中，屏蔽件可以具有可以形成部分闭合的体积的圆柱形形状，其中可以插入要成像的物体或样品。 在一个实施例中，RF屏蔽可以是RF线圈的一部分。 在具体实施例中，体积线圈的一些部分可以在屏蔽内部，并且体积线圈的其它部分可以在屏蔽外部。 体积线圈的一些部分的屏蔽可以产生对应于屏蔽内的特定部分和屏蔽外部的特定部分的导体图案。 在一个实施例中，可以将两个或更多个导体图案放置在相同屏蔽附近，并且独立地驱动，一起驱动，或者用作组合或未组合的接收元件。 该实施例是有利的，因为可以通过将端环的领域与腿部电流的场分离的灵活性来优化导体图案的组合。

公开(公告)号：US06894496B2

公开(公告)日：2005-05-17

申请号：US10607393

申请日：2003-06-25

申请人： David A. Molyneaux ,  G. Randy Duensing ,  S. Uli Gotshal ,  Thomas E. Schubert ,  Alan Holland ,  Scott B. King

发明人： David A. Molyneaux ,  G. Randy Duensing ,  S. Uli Gotshal ,  Thomas E. Schubert ,  Alan Holland ,  Scott B. King

IPC分类号： G01R33/34 ,  G01R33/3415 ,  G01B3/00 ,  G01R33/20 ,  G01R33/24

CPC分类号： G01R33/34046 ,  G01R33/34053 ,  G01R33/3415 ,  G01R33/365 ,  G01R33/3664

摘要： The subject invention pertains to a method and apparatus for Nuclear Magnetic Resonance (NMR) imaging. The subject method and apparatus are advantageous with respect to the use of RF coils for receiving signals in NMR scanners. The subject invention can utilize multiple coils to, for example, improve the signal to noise, increase the coverage area, and/or reduce the acquisition time. The use of multiple smaller surface or volume coils to receive NMR signals from the sample can increase the signal to noise ratio compared to a larger coil that has the same field of view and coverage area.

摘要翻译： 本发明涉及用于核磁共振（NMR）成像的方法和装置。 本发明的方法和装置在使用RF线圈用于在NMR扫描仪中接收信号方面是有利的。 本发明可以利用多个线圈来例如改善信噪比，增加覆盖区域和/或减少采集时间。 与具有相同视野和覆盖面积的较大线圈相比，使用多个更小的表面或体积线圈从样本接收NMR信号可以增加信噪比。

公开(公告)号：US20090191531A1

公开(公告)日：2009-07-30

申请号：US12341761

申请日：2008-12-22

申请人： Joseph Saccocci ,  G. Randy Duensing

发明人： Joseph Saccocci ,  G. Randy Duensing

IPC分类号： G09B5/00 ,  A61M21/02

CPC分类号： G09B5/062 ,  G09B5/065

摘要： The subject invention relates to a method and apparatus for synchronization of sensory stimulation with the reading experience. In a specific embodiment, audio and/or video stimulation can be provided to a reader. In additional embodiments, the sensory stimulation can include touch, smell, and/or taste. The reading experience can include, for example, the reading of books, magazines, textbooks, telephone directories, maps, resumes, brochures, newspapers, or other forms of written or printed materials, which can include, but are not limited to, words, photographs, illustrations, drawings, cartoons, and braille. The synchronization of sensory stimulation with the reading experience can involve providing sensory stimulation in relation to a reader's location or approximate location with respect to written or printed materials. In addition to sensory stimulation, other forms of interaction can be provided, such as interactive games, or interactive tests. A specific embodiment relates to a method and apparatus for synchronizing audio and/or video to a book as it is read.

摘要翻译： 本发明涉及一种用于感觉刺激与阅读体验同步的方法和装置。 在具体实施例中，可以向阅读器提供音频和/或视频刺激。 在另外的实施方案中，感觉刺激可以包括触感，气味和/或味道。 阅读经验可以包括例如阅读书籍，杂志，教科书，电话簿，地图，简历，小册子，报纸或其他形式的书面或印刷材料，其中可以包括但不限于字面， 照片，插图，图画，漫画和盲文。 感觉刺激与阅读经验的同步可以涉及相对于书面或印刷材料提供与读者的位置或大致位置相关的感觉刺激。 除了感觉刺激之外，还可以提供其他形式的互动，例如交互式游戏或交互式测试。 具体实施方式涉及用于在读取书籍时将音频和/或视频同步到书的方法和装置。

公开(公告)号：US07233147B2

公开(公告)日：2007-06-19

申请号：US10200893

申请日：2002-07-22

申请人： G. Randy Duensing

发明人： G. Randy Duensing

IPC分类号： G01V3/00

CPC分类号： G01R33/34046 ,  G01R33/341

摘要： The subject invention pertains to a method and apparatus utilizing one or more spiral coils, such as spiral birdcage coils, spiral saddle coils, Helmholtz coil pairs, and other spiral volume and spiral surface coils. The spiral coils of the subject array can be substantially isolated from each other while covering nearly the same volume or surface. For cylindrical geometrics, isolation can be enhanced by having the rotation, or change in direction from one end of the coil to the other, be 2nπ, where n is an integer.

摘要翻译： 本发明涉及利用一个或多个螺旋线圈的方法和装置，例如螺旋鸟笼线圈，螺旋鞍形线圈，亥姆霍兹线圈对以及其它螺旋体积和螺旋面线圈。 主体阵列的螺旋线圈可以基本上彼此隔离，同时覆盖几乎相同的体积或表面。 对于圆柱形几何形状，可以通过旋转或从线圈的一端到另一端的方向改变来增强隔离度，为2npi，其中n为整数。