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1. 发明授权

US06492814B1 Self localizing receive coils for MR 有权
标题翻译：自动定位MR接收线圈
公开(公告)号：US06492814B1
公开(公告)日：2002-12-10
申请号：US09683404
申请日：2001-12-21
申请人： Ronald Dean Watkins , Charles Lucian Dumoulin , Robert David Darrow
发明人： Ronald Dean Watkins , Charles Lucian Dumoulin , Robert David Darrow
IPC分类号： G01V300
CPC分类号： G01R33/341
摘要： A self-localizing receive coil system for use with a Magnetic Resonance Imaging (MRI) system comprises at least one surface coil assembly for placement adjacent to a region of interest to be imaged and a plurality of tracking devices attached to the surface coil assembly for use in indicating location and orientation of the surface coil assembly during imaging.
摘要翻译：用于与磁共振成像（MRI）系统一起使用的自定位接收线圈系统包括至少一个表面线圈组件，用于邻近要成像的感兴趣区域放置，以及附接到表面线圈组件以用于的多个跟踪装置在成像期间指示表面线圈组件的位置和取向。

2. 发明授权

US5730134A System to monitor temperature near an invasive device during magnetic resonance procedures 失效
标题翻译：在磁共振程序期间监测侵入性装置附近的温度的系统
公开(公告)号：US5730134A
公开(公告)日：1998-03-24
申请号：US714840
申请日：1996-09-09
申请人： Charles Lucian Dumoulin , Ronald Dean Watkins , Robert David Darrow , Steven Peter Souza
发明人： Charles Lucian Dumoulin , Ronald Dean Watkins , Robert David Darrow , Steven Peter Souza
IPC分类号： G01K7/00 , A61B5/00 , A61B5/01 , A61B5/055 , G01R33/28 , G01R33/48
CPC分类号： A61B5/01 , A61B5/055 , G01R33/287 , G01R33/4804
摘要： A temperature monitoring system employs a temperature detection means incorporated into an invasive device intended to be placed within a body during a magnetic resonance procedure. The temperature monitoring system is used to monitor temperature rises in tissue arising from the creation of electric fields within the tissue. These electric fields are created by the application of RF pulses during the course of a magnetic resonance procedure which induce electrical current in the invasive device. It the detected temperature rise exceeds a selected threshold, the temperature monitoring system can cause the magnetic resonance imaging system to either reduce RF power or terminate the procedure. An optical coupling may be used between the imaging or tracking RF coil and the MR receiver to eliminate heating induced by the application of RF pulses during the procedure.
摘要翻译：温度监测系统采用将温度检测装置并入到旨在在磁共振程序期间放置在体内的侵入性装置中。温度监测系统用于监测组织内产生的电场产生的组织温度升高。这些电场是通过在磁共振过程中施加RF脉冲而产生的，其在侵入性装置中引起电流。检测到的温度上升超过选定的阈值，温度监测系统可以使磁共振成像系统降低RF功率或终止程序。可以在成像或跟踪RF线圈和MR接收器之间使用光耦合器来消除在该过程期间由RF脉冲施加引起的加热。

3. 发明授权

US07439741B2 Thermal management apparatus and uses thereof 有权
标题翻译：热管理装置及其用途
公开(公告)号：US07439741B2
公开(公告)日：2008-10-21
申请号：US11603556
申请日：2006-11-22
申请人： Mehmet Arik , Kenneth William Rohling , Ronald Dean Watkins
发明人： Mehmet Arik , Kenneth William Rohling , Ronald Dean Watkins
IPC分类号： G01V3/00
CPC分类号： G01R33/3856 , G01R33/3804
摘要： In one aspect, a magnetic resonance imaging (MRI) device includes a non-magnetic, thermally conductive spreader substrate having a broken metal layer coupled to a thermally conductive, electrically non-conductive layer, wherein the broken metal layer is configured to exchange heat with at least one serpentine cooling tube.
摘要翻译：在一个方面，磁共振成像（MRI）装置包括具有与导热的非导电层耦合的断裂的金属层的非磁性导热扩散器基底，其中所述断裂的金属层被配置为与至少一个蛇形冷却管。

4. 发明授权

US07167000B2 Cryogenically cooled radiofrequency coil array for magnetic resonance imaging 有权
标题翻译：用于磁共振成像的低温射频线圈阵列
公开(公告)号：US07167000B2
公开(公告)日：2007-01-23
申请号：US11023140
申请日：2004-12-22
申请人： Kathleen Melanie Amm , Ronald Dean Watkins , William Daniel Barber , Christopher Judson Hardy , Kenneth William Rohling
发明人： Kathleen Melanie Amm , Ronald Dean Watkins , William Daniel Barber , Christopher Judson Hardy , Kenneth William Rohling
IPC分类号： G01V3/00
CPC分类号： G01R33/3415 , G01R33/34007 , G01R33/34023 , G01R33/341
摘要： A cryogenically cooled radiofrequency (RF) coil structure for use in Magnetic Resonance Imaging (MRI) and method for cryogenically cooling RF coils are provided. The cryogenically cooled RF coil structure comprises a sealed structure constructed of non-conducting material and adapted for containing a cooling substance and at least one RF coil disposed integrally in contact with the sealed structure such that sealed structure and integrally disposed RF coil are disposed about an object to be imaged.
摘要翻译：提供了用于磁共振成像（MRI）的低温冷却射频（RF）线圈结构和用于低温冷却RF线圈的方法。低温冷却的RF线圈结构包括由非导电材料构成并适于容纳冷却物质的密封结构和与密封结构一体地设置的至少一个RF线圈，使得密封结构和整体设置的RF线圈围绕要成像的对象。

5. 发明授权

US07046005B2 Method and apparatus for driver circuits for use in magnetic systems 失效
标题翻译：用于磁性系统的驱动电路的方法和装置
公开(公告)号：US07046005B2
公开(公告)日：2006-05-16
申请号：US10742982
申请日：2003-12-22
申请人： Ronald Dean Watkins , Douglas Arthur Kelley , Joseph Edward Piel, Jr.
发明人： Ronald Dean Watkins , Douglas Arthur Kelley , Joseph Edward Piel, Jr.
IPC分类号： G01V3/00
CPC分类号： G01R33/3657 , G01R33/3692
摘要： A control system comprising a driver circuit for magnetic systems is provided. The driver circuit is coupled to a magnetic system and is configured for isolating control signals from electromagnetic interference. The control signals are configured for controlling a plurality of switching elements in the magnetic system. The driver circuit and the magnetic system are located in shielded environment.
摘要翻译：提供一种包括用于磁性系统的驱动电路的控制系统。驱动器电路耦合到磁系统并且被配置用于将控制信号与电磁干扰隔离。控制信号被配置用于控制磁系统中的多个开关元件。驱动电路和磁性系统位于屏蔽环境中。

6. 发明授权

US06933724B2 Matrix coil for generating a variable magnetic field 有权
标题翻译：用于产生可变磁场的矩阵线圈
公开(公告)号：US06933724B2
公开(公告)日：2005-08-23
申请号：US10719118
申请日：2003-11-21
申请人： Ronald Dean Watkins , Harvey Ellis Cline , Douglas Arthur Kelley
发明人： Ronald Dean Watkins , Harvey Ellis Cline , Douglas Arthur Kelley
IPC分类号： G01R33/38 , G01R33/385 , G01R33/3875 , G01V3/00
CPC分类号： G01R33/381 , G01R33/385 , G01R33/3875
摘要： A matrix coil for generating a variable magnetic field is provided, including a plurality of loops arranged in a series so as to have a substantially common axis and segmented into at least one arc-shaped segment, a variable current source for each of the arc-shaped segments, and a controller. The controller is configured to selectively vary an amount of current provided to each of the arc-shaped segments by the variable current sources so as to achieve a variable base field, one or more variable gradient fields, and one or more variable second order shim fields.
摘要翻译：提供了一种用于产生可变磁场的矩阵线圈，包括以串联布置的多个环，以便具有基本共同的轴线并分成至少一个弧形段，用于每个弧形区段的可变电流源，形状的片段和控制器。控制器被配置为选择性地改变由可变电流源提供给每个弧形段的电流量，以便实现可变基场，一个或多个可变梯度场，以及一个或多个可变二阶垫片场。

7. 发明授权

US06822448B2 RF coil for very high field magnetic resonance imaging 有权
标题翻译： RF线圈用于非常高的场磁共振成像
公开(公告)号：US06822448B2
公开(公告)日：2004-11-23
申请号：US09839940
申请日：2001-04-20
申请人： Ronald Dean Watkins , John Frederick Schenck
发明人： Ronald Dean Watkins , John Frederick Schenck
IPC分类号： G01V300
CPC分类号： G01R33/34046
摘要： A radio frequency (RF) coil assembly for a very high field Magnetic Resonance Imaging (MRI) system is provided comprising a plurality of conductors arranged cylindrically and disposed about a cylindrical patient bore tube of the MRI system and a plurality of capacitive elements for electrically interconnecting the plurality of conductors at respective ends of the conductors. The conductors have a width selected for the RF coil assembly to resonate at substantially high frequencies. A very high field Magnetic Resonance Imaging (MRI) system is provided that comprises a RF coil assembly adapted to resonate at substantially high frequencies, a RF coil shield assembly and a plurality of RF drive power cables.
摘要翻译：提供了一种用于非常高场磁共振成像（MRI）系统的射频（RF）线圈组件，其包括围绕MRI系统的圆柱形患者钻孔管圆柱形布置的多个导体和用于电互连的多个电容元件在导体的相应端部处的多个导体。导体具有选择用于RF线圈组件的宽度以基本上高的频率谐振。提供了一种非常高的场磁共振成像（MRI）系统，其包括适于基本上高频率谐振的RF线圈组件，RF线圈屏蔽组件和多个RF驱动电力电缆。

8. 发明授权

US06791328B1 Method and apparatus for very high field magnetic resonance imaging systems 有权
标题翻译：非常高场磁共振成像系统的方法和装置
公开(公告)号：US06791328B1
公开(公告)日：2004-09-14
申请号：US10456816
申请日：2003-06-06
申请人： Akira Nabetani , Ronald Dean Watkins
发明人： Akira Nabetani , Ronald Dean Watkins
IPC分类号： G01V300
CPC分类号： G01R33/34076 , G01R33/34007 , G01R33/3453 , G01R33/3657
摘要： A radio frequency (RF) coil assembly for imaging a subject volume using a very high field Magnetic Resonance Imaging (MRI) system operable at substantially high frequencies includes a plurality of conductors arranged cylindrically and disposed about a patient bore of the MRI system, a plurality of capacitive elements disposed between and connecting respective ends of the conductors, the plurality of conductors and plurality of capacitive elements forming a high band pass birdcage configuration, and a plurality of dynamic disabling switches, each dynamic disabling switch electrically coupled in parallel with a respective capacitive element to form a parallel resonant circuit.
摘要翻译：用于使用可在基本上高频率操作的非常高场磁共振成像（MRI）系统对目标体积进行成像的射频（RF）线圈组件包括圆柱形布置并围绕MRI系统的患者孔布置的多个导体，多个设置在导体之间并连接导体的相应端部之间的电容元件，多个导体和形成高带通鸟笼配置的多个电容元件以及多个动态禁用开关，每个动态禁用开关与相应的电容器元件以形成并联谐振电路。

9. 发明授权

US06470204B1 Intracavity probe for MR image guided biopsy and delivery of therapy 失效
标题翻译：用于MR图像引导活检和输送治疗的腔内探针
公开(公告)号：US06470204B1
公开(公告)日：2002-10-22
申请号：US09609899
申请日：2000-07-03
申请人： Egidijus Edward Uzgiris , Kenneth William Rohling , Ronald Dean Watkins , Robert David Darrow , Charles Lucian Dumoulin , Randy Otto John Giaquinto , Michael Edward Moran
发明人： Egidijus Edward Uzgiris , Kenneth William Rohling , Ronald Dean Watkins , Robert David Darrow , Charles Lucian Dumoulin , Randy Otto John Giaquinto , Michael Edward Moran
IPC分类号： A61B505
CPC分类号： A61B5/4381 , A61B5/055
摘要： An insertable intracavity probe for use in Magnetic Resonance Imaging (MRI) and therapy of a region of interest proximal to a cavity, the probe having a substantially rigid probe shell for insertion into the cavity. The probe shell is adapted to incorporate at least one device for imaging the region of interest. A guide track is incorporated in the probe shell and is adapted to guide at least one biopsy or therapy device to the region of interest during imaging. Intracavity regions include cervical, rectal, and other regions associated with internal cavities of a patient.
摘要翻译：用于磁共振成像（MRI）的可插入腔内探针和对腔近侧感兴趣区域的治疗，所述探针具有用于插入腔的基本上刚性的探针壳。探针外壳适于引入至少一个用于对感兴趣区域进行成像的装置。引导轨道结合在探针壳体中，并且适于在成像期间将至少一个活组织检查或治疗装置引导到感兴趣区域。腔内区域包括与患者的内腔相关的颈部，直肠和其它区域。

10. 发明授权

US06184684B2 Method to automatically tune MRI RF coils 失效
标题翻译：自动调节MRI射频线圈的方法
公开(公告)号：US06184684B2
公开(公告)日：2001-02-06
申请号：US09505975
申请日：2000-02-16
申请人： Charles Lucien Dumoulin , Ronald Dean Watkins , Icko Eric Timothy Iben , Sayed-Amr Ahmes El-Hamamsy , William Alan Edelstein
发明人： Charles Lucien Dumoulin , Ronald Dean Watkins , Icko Eric Timothy Iben , Sayed-Amr Ahmes El-Hamamsy , William Alan Edelstein
IPC分类号： G01V300
CPC分类号： G01R33/3628
摘要： A sweep generator 230 applies a range of frequencies to an rf coil 140 to detect the resonant frequency of a field generated by a magnet 125a,b. A frequency to current converter 220 applies an auxiliary magnetic field to tune an MRI apparatus to the resonant frequency of the rf coil. A flexible coil of one turn (300) or two or more turns (500) has a plurality of segments (301-307; 501-513). One of the belt has a contact k0, (k0′), which is electrically connectable to one or more contacts k1, (k1′), k2, (k2′), etc. located between the ends of the segments. For each connection to successive contacts, the length of the coil and its inductance increases by the added impedance DLij between contacts ki and kj. That increase of inductance is nullified by capacitors DCsij located between segments.
摘要翻译：扫描发生器230将频率范围施加到射频线圈140以检测由磁体125a产生的场的共振频率，b。频率到电流转换器220施加辅助磁场以将MRI装置调谐到rf线圈的谐振频率。一圈（300）或两匝（500）的柔性线圈具有多个段（301-307; 501-513）。带中的一个具有可以与位于段的端部之间的一个或多个触点k1，（k1'），k2，（k2'）等电连接的触点k0（k0'）。对于与连续触点的每个连接，线圈的长度及其电感通过触点ki和kj之间的相加阻抗DLij而增加。电感的增加被位于段之间的电容器DCsij无效。

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