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1. 发明授权

US07307420B2 MRI method for simultaneous phase contrast angiography and invasive device tracking 有权
标题翻译： MRI方法用于同步相位对比血管造影和侵入性装置跟踪
公开(公告)号：US07307420B2
公开(公告)日：2007-12-11
申请号：US11248969
申请日：2005-10-12
申请人： Charles Dumoulin
发明人： Charles Dumoulin
IPC分类号： G01V3/00 , G01R33/20 , A61B5/055
CPC分类号： G01R33/287 , G01R33/56308 , G01R33/56316
摘要： A method for simultaneously tracking an invasive device disposed within a patient and acquiring an imaging signal of the patient with a magnetic resonance imaging (MRI) system during a single echo acquisition time period (46) of the MRI system. The method includes applying a radio frequency excitation pulse (26) to a patient to start an echo acquisition time period of an MRI system. The method then includes acquiring a tracking signal (54) from the invasive device during the echo acquisition time period and also acquiring an imaging signal (36) of the patient proximate an end of the same echo acquisition time period.
摘要翻译：一种用于在MRI系统的单个回波采集时间段（46）期间同时跟踪设置在患者体内的侵入性装置并采用磁共振成像（MRI）系统获取患者的成像信号的方法。该方法包括向患者施加射频激励脉冲（26）以开始MRI系统的回波采集时间段。该方法然后包括在回波获取时间周期期间从入侵设备获取跟踪信号（54），并且还获取接近相同回波采集时间段结束的患者的成像信号（36）。

2. 发明授权

US07777485B2 Method for multiplexed MR tracking 有权
标题翻译：复用MR跟踪方法
公开(公告)号：US07777485B2
公开(公告)日：2010-08-17
申请号：US11504192
申请日：2006-08-15
申请人： Charles Dumoulin , Renee Guhde
发明人： Charles Dumoulin , Renee Guhde
IPC分类号： G01V3/00 , A61B5/055
CPC分类号： G01R33/287
摘要： The present technique provides a novel method and apparatus for magnetic resonance device tracking. In one aspect of the present technique, a plurality of magnetic resonance tracking signals are acquired in response to a corresponding plurality of pulse sequences, wherein the plurality of magnetic resonance tracking signals are acquired from a tracking coil mounted in a device. A location value is also determined for each pulse sequence to produce a plurality of location values. Further, a candidate location value of the plurality of location values for replacement, an off-resonance error value for the plurality of magnetic resonance tracking signals, and a replacement location value based on the off-resonance error value are determined. The location of the device is also determined based on the plurality of location values, wherein the candidate location value was replaced in the plurality of location values with the replacement location value.
摘要翻译：本技术提供了一种用于磁共振装置跟踪的新颖方法和装置。在本技术的一个方面，响应于相应的多个脉冲序列获取多个磁共振跟踪信号，其中从安装在装置中的跟踪线圈获取多个磁共振跟踪信号。还针对每个脉冲序列确定位置值以产生多个位置值。此外，确定用于替换的多个位置值的候选位置值，用于多个磁共振跟踪信号的非共振误差值和基于非共振误差值的替换位置值。还基于多个位置值来确定设备的位置，其中在具有替换位置值的多个位置值中替换候选位置值。

3. 发明申请

US20060074296A1 System and method for correcting motion artifacts in imaging 有权
标题翻译：用于校正成像中运动伪影的系统和方法
公开(公告)号：US20060074296A1
公开(公告)日：2006-04-06
申请号：US10951300
申请日：2004-09-27
申请人： Charles Dumoulin , Robert Darrow
发明人： Charles Dumoulin , Robert Darrow
IPC分类号： A61B5/05
CPC分类号： G01R33/286 , A61B5/055 , A61B5/7207 , A61B5/721 , A61B5/7285 , A61B6/527 , A61B6/541 , A61B2090/364 , A61B2090/374 , G01R33/287 , G01R33/56509
摘要： A method for tracking a device used in an imaging system is provided. The method includes using a trigger for initiating a determination of multiple device locations. The scan parameters are then adjusted using the multiple device locations. Finally, a dynamically corrected image is acquired, where the adjusted scan parameters provide an offset for at least one scan parameter.
摘要翻译：提供了一种用于跟踪成像系统中使用的设备的方法。该方法包括使用触发器来启动多个设备位置的确定。然后使用多个设备位置调整扫描参数。最后，获取动态校正的图像，其中经调整的扫描参数为至少一个扫描参数提供偏移。

4. 发明授权

US06914432B2 Phased array coil assembly and method and system for employing the same 有权
标题翻译：相控阵线圈组件及其采用的方法和系统
公开(公告)号：US06914432B2
公开(公告)日：2005-07-05
申请号：US10601352
申请日：2003-06-23
申请人： Charles Dumoulin , Ronald Watkins , Randy Giaquinto
发明人： Charles Dumoulin , Ronald Watkins , Randy Giaquinto
IPC分类号： G01R33/34 , A61B5/055 , G01R33/3415 , H01F5/00 , G01V3/00
CPC分类号： G01R33/3415
摘要： A magnetic resonance imaging system comprises a phased array coil assembly and a signal processing circuit. The phased array coil assembly includes a plurality of coils coextensively covering a predetermined area. Each of the plurality of coils comprises a different number of loops over the predetermined area and divides the predetermined area into at least three contiguous regions arranged linearly along the predetermined area. The signal processing circuit is coupled to the phased array coil assembly for receiving a plurality of magnetic resonance signals detected by the plurality of coils. The signal processing circuit is configured to localize the plurality of magnetic resonance signals originating in at least one of the contiguous regions.
摘要翻译：磁共振成像系统包括相控阵线圈组件和信号处理电路。相控阵线圈组件包括共同覆盖预定区域的多个线圈。多个线圈中的每一个包括在预定区域上的不同数量的环路，并且将预定区域划分成沿着预定区域线性布置的至少三个连续区域。信号处理电路耦合到相控阵线圈组件，用于接收由多个线圈检测到的多个磁共振信号。信号处理电路被配置为使源自至少一个连续区域的多个磁共振信号定位。

5. 发明授权

US08583213B2 Combined MR imaging and tracking 有权
标题翻译：组合MR成像和跟踪
公开(公告)号：US08583213B2
公开(公告)日：2013-11-12
申请号：US11519562
申请日：2006-09-12
申请人： Charles Dumoulin , Patrick Gross , W. Thomas Dixon
发明人： Charles Dumoulin , Patrick Gross , W. Thomas Dixon
IPC分类号： A61B5/055
CPC分类号： A61B5/055 , A61B34/20 , A61B90/36 , A61B2034/107 , A61B2034/2051 , A61B2090/374 , A61B2090/3954 , G01R33/287 , G01R33/4824 , G01R33/561
摘要： A novel method and system for employing device tracking with a magnetic resonance imaging system. In accordance with one aspect of the present technique, a method for tracking the location of a device and generating an image using magnetic resonance imaging includes applying a combined imaging and tracking pulse sequence, in the presence of a magnetic field gradient, wherein the combined imaging and tracking sequence comprising a radiofrequency excitation pulse. The method further includes collecting tracking data based on a magnetic resonance tracking signal resulting from the radiofrequency excitation pulse, wherein the magnetic resonance tracking signal is returned from a tracking coil mounted in the device. The method also includes collecting imaging data based on a magnetic resonance imaging signal resulting from the radiofrequency excitation pulse, wherein the magnetic resonance imaging signal is returned from an imaging coil.
摘要翻译：一种利用磁共振成像系统采用装置跟踪的新颖方法和系统。根据本技术的一个方面，用于跟踪设备的位置并使用磁共振成像产生图像的方法包括在存在磁场梯度的情况下应用组合成像和跟踪脉冲序列，其中组合成像以及包括射频激励脉冲的跟踪序列。该方法还包括基于由射频激励脉冲产生的磁共振跟踪信号收集跟踪数据，其中磁共振跟踪信号从安装在装置中的跟踪线圈返回。该方法还包括基于由射频激励脉冲产生的磁共振成像信号收集成像数据，其中磁共振成像信号从成像线圈返回。

6. 发明申请

US20080097191A1 Method for multiplexed MR tracking 有权
标题翻译：复用MR跟踪方法
公开(公告)号：US20080097191A1
公开(公告)日：2008-04-24
申请号：US11504192
申请日：2006-08-15
申请人： Charles Dumoulin , Renee Guhde
发明人： Charles Dumoulin , Renee Guhde
IPC分类号： A61B5/055
CPC分类号： G01R33/287
摘要： The present technique provides a novel method and apparatus for magnetic resonance device tracking. In one aspect of the present technique, a plurality of magnetic resonance tracking signals are acquired in response to a corresponding plurality of pulse sequences, wherein the plurality of magnetic resonance tracking signals are acquired from a tracking coil mounted in a device. A location value is also determined for each pulse sequence to produce a plurality of location values. Further, a candidate location value of the plurality of location values for replacement, an off-resonance error value for the plurality of magnetic resonance tracking signals, and a replacement location value based on the off-resonance error value are determined. The location of the device is also determined based on the plurality of location values, wherein the candidate location value was replaced in the plurality of location values with the replacement location value.
摘要翻译：本技术提供了一种用于磁共振装置跟踪的新颖方法和装置。在本技术的一个方面，响应于相应的多个脉冲序列获取多个磁共振跟踪信号，其中从安装在装置中的跟踪线圈获取多个磁共振跟踪信号。还针对每个脉冲序列确定位置值以产生多个位置值。此外，确定用于替换的多个位置值的候选位置值，用于多个磁共振跟踪信号的非共振误差值和基于非共振误差值的替换位置值。还基于多个位置值来确定设备的位置，其中在具有替换位置值的多个位置值中替换候选位置值。

7. 发明申请

US20070289152A1 Levelling Rod, Level Determining Apparatus for Said Rod, and Level Determining Method 有权
标题翻译：流平杆，所述杆的液位测定装置和液位测定方法
公开(公告)号：US20070289152A1
公开(公告)日：2007-12-20
申请号：US11568530
申请日：2005-04-29
申请人： Zheng Zeng , Charles Dumoulin , Chin Ng , Keliang Zhou
发明人： Zheng Zeng , Charles Dumoulin , Chin Ng , Keliang Zhou
IPC分类号： G01C15/06
CPC分类号： G01C15/06
摘要： The levelling rod (1) for a level determining apparatus (2) has position indications therealong along expressed by barcode symbols (11, 12). At least some of said barcode symbols are colour barcode symbols, the colour serving to encode said position indications. The barcode symbols can be organized in first and second blocks (12, 11) of barcode symbols, each providing a position indication, wherein the length (Ls) occupied along the rod (1) by a first block (12) is smaller than the length (Lb) occupied along the rod by a second block (11), the first blocks thereby providing a finer position indication than the second blocks. The first blocks (12) of barcode symbols can be formed of monochrome and colour bar code symbols, e.g. just one colour barcode symbol and at least one monochrome barcode symbol, while the second blocks (11) can be formed purely of colour barcode symbols. The invention also relates to a level determining apparatus specifically adapted for the above rod, and to a method of using that rod.
摘要翻译：用于电平确定装置（2）的调平杆（1）具有沿着由条形码符号（11,12）表示的位置指示。至少一些所述条形码符号是彩色条形码符号，用于编码所述位置指示的颜色。条形码符号可以被组织在条形码符号的第一和第二块（12,11）中，每个条形码符号提供位置指示，其中由第一块（12）沿杆（1）占据的长度（Ls）小于长度（Lb）由第二块（11）沿着杆占据，第一块由此提供比第二块更精细的位置指示。条形码符号的第一块（12）可以由单色和彩色条形码符号形成，例如，只有一个彩色条形码符号和至少一个单色条形码符号，而第二块（11）可以纯粹地由彩色条形码符号形成。本发明还涉及一种特别适用于上述杆的液面确定装置以及使用该杆的方法。

8. 发明申请

US20050253582A1 Multi-turn element RF coil array for multiple channel MRI 失效
标题翻译：用于多通道MRI的多匝元件RF线圈阵列
公开(公告)号：US20050253582A1
公开(公告)日：2005-11-17
申请号：US10962819
申请日：2004-10-07
申请人： Randy Otto Giaquinto , Harvey Cline , Christopher Hardy , Charles Dumoulin , Paul Bottomley
发明人： Randy Otto Giaquinto , Harvey Cline , Christopher Hardy , Charles Dumoulin , Paul Bottomley
IPC分类号： A61B5/055 , G01R33/34 , G01R33/3415 , G01R33/36 , G01V3/00
CPC分类号： G01R33/3415 , G01R33/34007
摘要： An RF coil assembly for use in a multiple receive-channel MRI system is provided. The RF coil assembly is configured as a multi-turn-element RF coil assembly 200 to operate as a surface-coil array in cooperation with the MRI system 100 which is configured to operate in a multiple-channel receive mode.
摘要翻译：提供了一种用于多接收信道MRI系统的RF线圈组件。 RF线圈组件被配置为多匝元件RF线圈组件200，以与被配置为以多通道接收模式操作的MRI系统100协作操作为表面线圈阵列。

9. 发明授权

US07391213B2 Three axis angle invariant RF coil assembly and method and system employing same 有权
标题翻译：三轴角不变RF线圈组件及其采用的方法及系统
公开(公告)号：US07391213B2
公开(公告)日：2008-06-24
申请号：US10428433
申请日：2003-05-02
申请人： Ronald Watkins , Charles Dumoulin , Randy Giaquinto
发明人： Ronald Watkins , Charles Dumoulin , Randy Giaquinto
IPC分类号： G01V3/00 , A61B5/055
CPC分类号： G01R33/34046 , G01R33/34092
摘要： A radio frequency coil assembly for use in a magnetic resonance system comprises a set of conductors for detecting magnetic resonance signals in three orthogonal planes and capacitors for resonating the set of conductors at a predetermined frequency. A conductor of the set of conductors is placed on each edge of a cube-shaped volume and the capacitors are placed on each conductor of the set of conductors such that each conductor has substantially equal effective capacitance.A four element band pass birdcage coil comprises two square end ring segments, each end ring segment comprising four sides of equal length, and four rungs of length equal to a side of the end ring segment, and wherein four rungs join in respective corners of the end ring segments.
摘要翻译：用于磁共振系统的射频线圈组件包括一组用于检测三个正交平面中的磁共振信号的导体和用于以预定频率谐振该组导体的电容器。导体组的导体被放置在立体形体积的每个边缘上，并且电容器被放置在该组导体的每个导体上，使得每个导体具有基本相等的有效电容。四元素带通鸟笼线圈包括两个方形端环段，每个端环段包括相等长度的四边，四个长度等于端环段一侧的梯级，其中四个梯级连接在端环段。

10. 发明申请

US20080097189A1 Combined MR imaging and tracking 有权
标题翻译：组合MR成像和跟踪
公开(公告)号：US20080097189A1
公开(公告)日：2008-04-24
申请号：US11519562
申请日：2006-09-12
申请人： Charles Dumoulin , Patrick Gross , W. Thomas Dixon
发明人： Charles Dumoulin , Patrick Gross , W. Thomas Dixon
IPC分类号： A61B5/055
CPC分类号： A61B5/055 , A61B34/20 , A61B90/36 , A61B2034/107 , A61B2034/2051 , A61B2090/374 , A61B2090/3954 , G01R33/287 , G01R33/4824 , G01R33/561
摘要： A novel method and system for employing device tracking with a magnetic resonance imaging system. In accordance with one aspect of the present technique, a method for tracking the location of a device and generating an image using magnetic resonance imaging includes applying a combined imaging and tracking pulse sequence, in the presence of a magnetic field gradient, wherein the combined imaging and tracking sequence comprising a radiofrequency excitation pulse. The method further includes collecting tracking data based on a magnetic resonance tracking signal resulting from the radiofrequency excitation pulse, wherein the magnetic resonance tracking signal is returned from a tracking coil mounted in the device. The method also includes collecting imaging data based on a magnetic resonance imaging signal resulting from the radiofrequency excitation pulse, wherein the magnetic resonance imaging signal is returned from an imaging coil.
摘要翻译：一种利用磁共振成像系统采用装置跟踪的新颖方法和系统。根据本技术的一个方面，用于跟踪设备的位置并使用磁共振成像产生图像的方法包括在存在磁场梯度的情况下应用组合成像和跟踪脉冲序列，其中组合成像以及包括射频激励脉冲的跟踪序列。该方法还包括基于由射频激励脉冲产生的磁共振跟踪信号收集跟踪数据，其中磁共振跟踪信号从安装在装置中的跟踪线圈返回。该方法还包括基于由射频激励脉冲产生的磁共振成像信号收集成像数据，其中磁共振成像信号从成像线圈返回。

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