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1. 发明授权

US08729899B2 MRI magnet and MRI system with optimized fringe fields, attractive forces and spatial constraints 有权
标题翻译： MRI磁体和MRI系统具有优化的边缘场，吸引力和空间限制
公开(公告)号：US08729899B2
公开(公告)日：2014-05-20
申请号：US13178805
申请日：2011-07-08
申请人： Michael Steckner , Bruce C. Breneman
发明人： Michael Steckner , Bruce C. Breneman
IPC分类号： G01V3/00
CPC分类号： G01R33/421
摘要： A magnetic resonance imaging (MRI) system magnet includes at least one main electromagnet winding disposed within a first radius of the magnet and at least one bucking electromagnet winding disposed within a second radius, larger than the first radius of the magnet and configured to provide self-shielding magnetic fields that substantially reduce fringe magnetic fields outside the magnet produced by the main electromagnet winding. The combination of magnetic fields produced by both the main and bucking electromagnet windings inside the magnet conform to MRI requirements within at least an imaging volume. The main and bucking electro-magnet windings are configured so as to create a net fringe field outside the magnet within the range of 50-100 gauss at a distance within a range of 3-5 meters axially and 2-3 meters radially from a center of the magnet.
摘要翻译：磁共振成像（MRI）系统磁体包括设置在磁体的第一半径内的至少一个主电磁体绕组和设置在第二半径内的至少一个屈曲电磁体绕组，其大于磁体的第一半径并且被配置为提供自身所述磁场基本上减少由主电磁铁绕组产生的磁体外的边缘磁场。磁体内部的主电磁铁和屈曲电磁铁绕组产生的磁场的组合符合至少一个成像体积内的MRI要求。主电磁铁绕组被构造成在50-100高斯的范围内在磁体外部产生一个净边缘场，距离在3-5米的范围内，距中心径向2-3米的磁铁。

2. 发明申请

US20130009642A1 MRI MAGNET AND MRI SYSTEM WITH OPTIMIZED FRINGE FIELDS, ATTRACTIVE FORCES AND SPATIAL CONSTRAINTS 有权
标题翻译：具有优化的FRINGE字段，吸引力和空间约束的MRI磁体和MRI系统
公开(公告)号：US20130009642A1
公开(公告)日：2013-01-10
申请号：US13178805
申请日：2011-07-08
申请人： Michael Steckner , Bruce C. Breneman
发明人： Michael Steckner , Bruce C. Breneman
IPC分类号： G01R33/44
CPC分类号： G01R33/421
摘要： A magnetic resonance imaging (MRI) system magnet includes at least one main electromagnet winding disposed within a first radius of the magnet and at least one bucking electromagnet winding disposed within a second radius, larger than the first radius of the magnet and configured to provide self-shielding magnetic fields that substantially reduce fringe magnetic fields outside the magnet produced by the main electromagnet winding. The combination of magnetic fields produced by both the main and bucking electromagnet windings inside the magnet conform to MRI requirements within at least an imaging volume. The main and bucking electro-magnet windings are configured so as to create a net fringe field outside the magnet within the range of 50-100 gauss at a distance within a range of 3-5 meters axially and 2-3 meters radially from a center of the magnet.
摘要翻译：磁共振成像（MRI）系统磁体包括设置在磁体的第一半径内的至少一个主电磁体绕组和设置在第二半径内的至少一个屈曲电磁体绕组，其大于磁体的第一半径并且被配置为提供自身所述磁场基本上减少由主电磁铁绕组产生的磁体外的边缘磁场。磁体内部的主电磁铁和屈曲电磁铁绕组产生的磁场的组合符合至少一个成像体积内的MRI要求。主电磁铁绕组被构造成在50-100高斯的范围内在磁体外部产生一个净边缘场，距离在3-5米的范围内，距中心径向2-3米的磁铁。

3. 发明申请

US20110092799A1 Active implant medical device (AMID) and medical imaging scanner communications involving patient-specific AIMD configuration 审中-公开
标题翻译：有源植入式医疗设备（AMID）和涉及患者特异性AIMD配置的医学成像扫描仪通信
公开(公告)号：US20110092799A1
公开(公告)日：2011-04-21
申请号：US12662448
申请日：2010-04-19
申请人： Michael Steckner
发明人： Michael Steckner
IPC分类号： A61B5/055
CPC分类号： A61N1/3718 , A61N1/37252
摘要： A communications link between an active implanted medical device (AIMD) and a magnetic resonance imaging (MRI) machine enables an information exchange including data relating to a configuration of a lead of the AIMD as installed in the patient and/or an operational parameter limit of the MRI machine determined from the data. The data relating to the configuration of the lead in the patient may include a size and/or position of an effective loop area enclosed by the lead. The data relating to the configuration of the lead in the patient may include data corresponding to a pictorial representation, such as an x-ray of the patient having the AIMD, of the lead and at least part of the patient's body. An operation of the MRI machine may be stopped or a warning/alarm initiated if the operational parameter limit (e.g., maximum power limit of a gradient or RF field) determined from the data relating to the configuration of the lead in the patient is exceeded.
摘要翻译：有源植入医疗装置（AIMD）和磁共振成像（MRI）机器之间的通信链路能够进行信息交换，包括与安装在患者中的AIMD的引线的配置相关的数据和/或操作参数限制 MRI机器根据数据确定。与患者的引线结构相关的数据可以包括由引线包围的有效环区的大小和/或位置。与患者中的引线的配置相关的数据可以包括对应于图形表示的数据，例如具有AIMD的患者的X射线以及患者身体的至少一部分。如果从与患者中的引线的配置相关的数据超过了确定的操作参数限制（例如，梯度或RF场的最大功率限制），则可以停止MRI机的操作或警告/报警。

4. 发明申请

US20070225588A1 Automated Patient Localization in a Medical Imaging System 审中-公开
标题翻译：医学影像系统中的自动化患者定位
公开(公告)号：US20070225588A1
公开(公告)日：2007-09-27
申请号：US11308350
申请日：2006-03-17
申请人： Michael Steckner
发明人： Michael Steckner
IPC分类号： A61B5/05
CPC分类号： A61B5/0555 , G06Q50/22 , G06Q50/24
摘要： Described herein is a process for patient localization within a medical imaging system, having a first and second signal means for identifying patient position. The patient is manually positioned on a patient table at an initial position outside the system. A first signal means is manually positioned adjacent an area of interest on the patient in the initial position and the first signal means communicates that initial patient position to a detection means. The second signal means communicates a desired final patient position location to the detection means. The detection means either essentially continuously monitors and compares said initial and subsequent positions to the final position, or calculates the distance between the initial position and the final position and causes the patient to move from the initial position to the final position when the positions are not essentially the same.
摘要翻译：这里描述的是用于医疗成像系统内的患者定位的过程，具有用于识别患者位置的第一和第二信号装置。患者在系统外部的初始位置手动定位在患者台上。第一信号装置在初始位置被手动定位在患者的感兴趣区域附近，并且第一信号装置将该初始患者位置通信到检测装置。第二信号装置将期望的最终患者位置位置传送到检测装置。检测装置基本上连续地监测和比较所述初始位置和后续位置到最终位置，或者计算初始位置和最终位置之间的距离，并且使得当位置不是时，患者从初始位置移动到最终位置基本上是一样的

5. 发明授权

US07525311B2 Configurable radiofrequency receive coil system for a magnetic resonance imaging system 失效
标题翻译：用于磁共振成像系统的可配置射频接收线圈系统
公开(公告)号：US07525311B2
公开(公告)日：2009-04-28
申请号：US11681418
申请日：2007-03-02
申请人： Michael Steckner
发明人： Michael Steckner
IPC分类号： G01V3/00
CPC分类号： G01R33/34046 , G01R33/34007 , G01R33/34084 , G01R33/3415 , G01R33/56383
摘要： Described herein is a radiofrequency receive coil system for a magnetic resonance imaging (MRI) system that includes an array of a plurality of individual coils arrayed around the outer limits of the imaging volume that is defined by a main magnet and a gradient coil, positioned tangentially down the length of said volume, with the plurality of individual coils each having an initial position with relation to the patient to be imaged; and mechanical support for the individual coils. The individual coils may be dynamically repositioned for optimal imaging. A further embodiment of the system includes an array of individual coils positioned radially on the vertical plane around the patient table, which may advance into the gantry before imaging. The method for use of the receive coil system is also described.
摘要翻译：这里描述的是用于磁共振成像（MRI）系统的射频接收线圈系统，其包括围绕由主磁体和梯度线圈定义的成像体积的外部极限排列的多个单独线圈的阵列，切向定位所述多个单独的线圈各自具有与待成像的患者相关的初始位置; 和各个线圈的机械支撑。可以动态地重新定位单个线圈以获得最佳成像。系统的另一实施例包括位于患者台周围的垂直平面上的径向定位的单个线圈阵列，其可在成像之前进入台架。还描述了接收线圈系统的使用方法。

6. 发明申请

US20080211495A1 Infinitely Configurable RF Receive Coil 失效
标题翻译：无线可配置RF接收线圈
公开(公告)号：US20080211495A1
公开(公告)日：2008-09-04
申请号：US11681418
申请日：2007-03-02
申请人： Michael Steckner
发明人： Michael Steckner
IPC分类号： G01V3/00 , H01Q11/12
CPC分类号： G01R33/34046 , G01R33/34007 , G01R33/34084 , G01R33/3415 , G01R33/56383
摘要： Described herein is a radiofrequency receive coil system for a magnetic resonance imaging (MRI) system that includes an array of a plurality of individual coils arrayed around the outer limits of the imaging volume that is defined by a main magnet and a gradient coil, positioned tangentially down the length of said volume, with the plurality of individual coils each having an initial position with relation to the patient to be imaged; and mechanical support for the individual coils. The individual coils may be dynamically repositioned for optimal imaging. A further embodiment of the system includes an array of individual coils positioned radially on the vertical plane around the patient table, which may advance into the gantry before imaging. The method for use of the receive coil system is also described.
摘要翻译：这里描述的是用于磁共振成像（MRI）系统的射频接收线圈系统，其包括围绕由主磁体和梯度线圈定义的成像体积的外部极限排列的多个单独线圈的阵列，切向定位所述多个单独的线圈各自具有与待成像的患者相关的初始位置; 和各个线圈的机械支撑。可以动态地重新定位单个线圈以获得最佳成像。系统的另一实施例包括位于患者台周围的垂直平面上的径向定位的单个线圈阵列，其可在成像之前进入台架。还描述了接收线圈系统的使用方法。

7. 发明申请

US20080200795A1 Method of Modifying MR Signals Using Ultrasound Waves 有权
标题翻译：使用超声波修正MR信号的方法
公开(公告)号：US20080200795A1
公开(公告)日：2008-08-21
申请号：US11675859
申请日：2007-02-16
申请人： Michael Steckner
发明人： Michael Steckner
IPC分类号： A61B5/055
CPC分类号： A61B5/055 , A61B5/0051
摘要： Described herein is a medical imaging technique that includes directing ultrasound waves into a portion of a body of interest during at least a portion of a time period during which an MR imaging process is simultaneously performed on the portion of the body of interest such that the MR signal is altered by the application of the ultrasound waves. The ultrasound waves may be applied continually during the MR imaging process, or only during a portion thereof. The frequency of the ultrasound waves may be substantially the same as, or different than that of the MR signals. Images may be produced from only the MR imaging process or both the MR imaging process and the application of ultrasound waves prior to the imaging sessions.
摘要翻译：本文描述的是一种医学成像技术，其包括在至少一部分时间周期内将超声波引导到感兴趣的身体的一部分中，在该时间段期间，在感兴趣的身体部分上同时执行MR成像过程，使得MR 通过应用超声波来改变信号。超声波可以在MR成像过程期间连续施加，或仅在其一部分期间施加。超声波的频率可以与MR信号的频率基本相同或不同。可以仅在MR成像过程或MR成像过程和成像会话之前的超声波的应用两者之间产生图像。

8. 发明申请

US20110092802A1 Active implant communications with medical imaging scanner 审中-公开
标题翻译：与医学成像扫描仪有源植入物通讯
公开(公告)号：US20110092802A1
公开(公告)日：2011-04-21
申请号：US12588483
申请日：2009-10-16
申请人： Michael Steckner
发明人： Michael Steckner
IPC分类号： A61B5/055
CPC分类号： A61N1/08 , A61B5/055 , A61N1/3718
摘要： A bi-directional communications link between an active implanted medical device (AIMD) and a magnetic resonance imaging (MRI) machine enables information to be exchanged to determine whether an operational mode of the AIMD and MRI is acceptable. For example, the bi-directional communications link enables information to be exchanged to determine whether the AIMD and MRI machine are acceptably operating within at least one operational limit. An operation of the MRI machine may be permitted if the operation is acceptably within the operational limit and may be stopped if not.
摘要翻译：有源植入医疗装置（AIMD）和磁共振成像（MRI）机器之间的双向通信链路使信息可以交换，以确定AIMD和MRI的操作模式是否可接受。例如，双向通信链路使得能够交换信息以确定AIMD和MRI机器是否可接受地在至少一个操作限制内操作。如果操作可接受地在操作限度内，则可以允许MRI机器的操作，如果不行，可以停止操作。

9. 发明授权

US07352182B1 Automated selection of elements within phased array RF coils 有权
标题翻译：在相控阵RF线圈内自动选择元件
公开(公告)号：US07352182B1
公开(公告)日：2008-04-01
申请号：US11558665
申请日：2006-11-10
申请人： Michael Steckner
发明人： Michael Steckner
IPC分类号： G01V3/00
CPC分类号： G01R33/3415 , G01R33/4824
摘要： Described herein is a method for the automatic selection of elements within at least one radiofrequency coil used for imaging at least one slice of a volume using a magnetic resonance imaging system which includes performing a one-dimensional projection for at least one angle for each element of an initial selection of multiple elements; and using the at least one projection in selecting and/or deselecting at least one element from the group of multiple elements for imaging of the volume. Noise scans can also be utilized to set the receiver channel gain for imaging as part of the method. The elements can also be ranked, commonly using the element's signal to noise ratio, with selection and/or deselection based on the ranking.
摘要翻译：本文描述了一种用于自动选择用于使用磁共振成像系统对体积的至少一个成像片进行成像的至少一个射频线圈内的元件的方法，所述磁共振成像系统包括对于每个元件的至少一个角度执行至少一个角度的一维投影初始选择多个元素; 以及使用所述至少一个投影来选择和/或取消选择来自所述多个元素的组的至少一个元素以用于所述体积的成像。也可以利用噪声扫描来设置用于成像的接收机通道增益，作为该方法的一部分。这些元素也可以通过使用元素的信噪比进行排名，其中基于排名的选择和/或取消选择。

10. 发明申请

US20070262776A1 Magnetic Resonance Imaging Magnet Assembly System with Improved Homogeneity 审中-公开
标题翻译：磁共振成像磁体组装系统具有改进的均匀性
公开(公告)号：US20070262776A1
公开(公告)日：2007-11-15
申请号：US11382554
申请日：2006-05-10
申请人： Labros Petropoulos , Michael Steckner
发明人： Labros Petropoulos , Michael Steckner
IPC分类号： G01V3/00
CPC分类号： G01R33/3815 , G01R33/3873 , G01R33/3875
摘要： Described herein is a magnet system for use in imaging a volume that includes a main magnet and at least one magnet coil assembly positioned between the main magnet and the imaging volume. A gradient coil assembly including an inner primary gradient coil alone or with the addition of an outer secondary gradient coil may also exist between the main magnet and imaging volume. The magnet coil assembly may then be positioned between the inner primary gradient coil and the imaging volume, between the inner primary gradient coil and outer secondary gradient coil, or in both positions. Also described herein is an MRI system incorporating the magnet system with additional magnet coil assemblies, and the process for improving the homogeneity of a magnet system using the additional magnet coil assemblies.
摘要翻译：这里描述的磁体系统用于对包括主磁体和定位在主磁体和成像体积之间的至少一个磁体线圈组件的体积进行成像。在主磁体和成像体积之间也可以存在包括单独的内部主梯度线圈或者添加外部次级梯度线圈的梯度线圈组件。然后可以将磁体线圈组件定位在内部初级梯度线圈和成像体积之间，内部主梯度线圈和外部次级梯度线圈之间，或者位于两个位置。本文还描述了将磁体系统与附加的磁体线圈组件结合在一起的MRI系统，以及使用附加的磁体线圈组件改善磁体系统的均匀性的方法。

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