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1. 发明授权

US4614195A Method for reduction of motion artifacts in Fourier transform NMR imaging techniques 失效
标题翻译：傅里叶变换核磁共振成像技术中减少运动伪影的方法
公开(公告)号：US4614195A
公开(公告)日：1986-09-30
申请号：US683071
申请日：1984-12-18
申请人： Paul A. Bottomley , Gary H. Glover
发明人： Paul A. Bottomley , Gary H. Glover
IPC分类号： A61B10/00 , A61B5/055 , G01R33/48 , G01R33/54 , G01R33/567 , G06T1/00 , A61B5/05
CPC分类号： G01R33/482 , G01R33/56509 , G01R33/5676
摘要： A reduction in motion-induced image artifact, occurring when imaging moving subjects using Fourier transform (FT) NMR techniques, is achieved by recognizing that the greatest contribution to the artifacts is simple geometric motion (such as respiration). The method relies on avoiding the synchrony between the sequence repetition time of an FT pulse sequence, such as spin warp, and the period of the motion. In one preferred embodiment, the different amplitude values of the phase-encoding gradient are selected randomly, rather than sequentially. In another preferred embodiment, gradient amplitude values are selected by alternating high and low values in the temporal implementation of the pulse sequence.
摘要翻译：通过使用傅里叶变换（FT）NMR技术对移动物体进行成像时发生的运动诱导图像伪影的减少通过识别对人造物的最大贡献是简单的几何运动（例如呼吸）来实现。该方法依赖于避免FT脉冲序列的序列重复时间（例如自旋扭曲）与运动周期之间的同步。在一个优选实施例中，相位编码梯度的不同振幅值被随机地选择，而不是依次选择。在另一个优选实施例中，通过在脉冲序列的时间实现中交替高和低值来选择梯度振幅值。

2. 发明授权

US09791489B2 High dynamic range RF power monitor 有权
公开(公告)号：US09791489B2
公开(公告)日：2017-10-17
申请号：US14005804
申请日：2012-03-22
申请人： Paul A. Bottomley , William Edelstein , Abdel-Monem M. El-Sharkawy , Di Qian
发明人： Paul A. Bottomley , William Edelstein , Abdel-Monem M. El-Sharkawy , Di Qian
IPC分类号： G01R27/32 , G01R21/00 , G01R33/36 , A61N1/00 , G06F1/00 , G01R1/00 , G01R21/10 , G01R33/28
CPC分类号： G01R27/32 , A61N1/00 , G01R1/00 , G01R21/00 , G01R21/10 , G01R33/288 , G01R33/3614 , G06F1/00 , G06F2101/00
摘要： A device with at least one channel for measuring high dynamic range, radio frequency (RF) power levels over broad-ranging duty cycles includes a power sensor circuit comprising at least one logarithmic amplifier; at least one directional RF coupler electrically connected to the at least one power sensor; at least one RF attenuator electrically connected to the at least one RF coupler; and at least one sampling circuit electrically connected to the at least one RF attenuator and the at least one RF coupler. The at least one sampling circuit performs analog-to-digital conversion of electrical signals received to provide digitals signals for measuring the RF power level in the at least one channel.

3. 发明授权

US08717021B2 SAR dosimeter for RF power deposition in MRI and methods and systems related thereto 有权
标题翻译：用于MRI中RF功率沉积的SAR剂量计及与其相关的方法和系统
公开(公告)号：US08717021B2
公开(公告)日：2014-05-06
申请号：US12677097
申请日：2008-09-08
申请人： Paul A. Bottomley , John P. Stralka
发明人： Paul A. Bottomley , John P. Stralka
IPC分类号： G01V3/00
CPC分类号： G01R33/288 , G01R33/58
摘要： Featured is a dosimeter device that measures SAR deposited by RF power deposition during MRI of a specimen. Such a dosimeter device includes a transducer that is configured to present a load to the MRI scanner in which the transducer is located and to provide an output representative of signals induced in the transducer. The transducer also is configured so that the presented load is substantially equivalent to another load which would be presented by the specimen during MRI of the specimen. Such a transducer also is configured so as to generate an MRI signal that is sufficient to allow the MRI scanner to adjust the RF power to a value substantially equal to that of the specimen. Also featured are methods for measuring SAR deposited by RF power deposition and apparatuses or system embodying such a dosimeter device.
摘要翻译：特色是一种剂量计装置，可以在样品的MRI期间测量通过RF功率沉积沉积的SAR。这样一种剂量计装置包括一个换能器，该换能器被配置为向换能器所在的MRI扫描器提供负载，并提供代表在换能器中感应的信号的输出。传感器还被配置成使得所呈现的负载基本上等于在样本的MRI期间由样本呈现的另一负载。这样的换能器也被配置为产生足以使MRI扫描器将RF功率调整到基本上等于样本的值的MRI信号。还有一些用于测量通过RF功率沉积沉积的SAR的方法以及体现这种剂量计装置的装置或系统。

4. 发明申请

US20110037468A1 OPTIMIZED MRI STRIP ARRAY DETECTORS AND APPARATUS, SYSTEMS AND METHODS RELATED THERETO 有权
标题翻译：优化的MRI条带阵列检测器及其相关的设备，系统和方法
公开(公告)号：US20110037468A1
公开(公告)日：2011-02-17
申请号：US12879430
申请日：2010-09-10
申请人： Paul A. Bottomley , Ananda Kumar
发明人： Paul A. Bottomley , Ananda Kumar
IPC分类号： G01R33/44
CPC分类号： G01R33/3415 , G01R33/3678
摘要： Featured is a device for NMR or MRI signals from excited nuclei as well as related apparatus, systems and methods. The device includes a strip array antenna including one or more conductor and N reactive tuning components, where N is an integer≧1 at least one of the N reactive components is electrically coupled to each of the one or more conductors as well as to ground/virtual ground. The apparent electrical length of the conductors is tuned with the reactive tuning components so it is equal to be about nλ/4, where n is an integer≧1 and λ is the wavelength of the signal to be detected. The length of the strip also is such as to be substantially in the approximate range of 1.3 times the depth of interest. The strip conductors are also combined with loop coils to form quadrature detectors.
摘要翻译：特色是用于激发核的NMR或MRI信号以及相关设备，系统和方法的设备。该装置包括带状阵列天线，其包括一个或多个导体和N个非反应调谐组件，其中N是整数≥1，N个无功分量中的至少一个电耦合到一个或多个导体中的每一个以及接地/ 虚拟地面。导体的表观电长度用无功调谐分量进行调谐，因此等于大约nλ/ 4，其中n是整数≧1，λ是待检测信号的波长。条的长度也基本上在感兴趣深度的1.3倍的近似范围内。带状导体也与环形线圈组合以形成正交检测器。

5. 发明申请

US20100274252A1 VERTEBRAL BODY REDUCTION INSTRUMENT AND METHODS RELATED THERETO 有权
标题翻译： VERTEBRAL身体减少仪器及其相关方法
公开(公告)号：US20100274252A1
公开(公告)日：2010-10-28
申请号：US12766481
申请日：2010-04-23
申请人： Paul A. Bottomley , Shashank Sathyanarayana
发明人： Paul A. Bottomley , Shashank Sathyanarayana
IPC分类号： A61B17/60
CPC分类号： A61B17/708
摘要： Featured is a reduction instrument being configured and arranged to allow correction of vertebral translation and applying distraction across a segment in an independent fashion. Such a reduction instrument embodies one or more identical modules that are configured as needed for correcting the deformity. In more particular embodiments, each of the one or more modules has two degrees of freedom (DOF) with uncoupled orthogonal translations. Such a reduction instrument allows the reorientation of the vertebral segment as needed via uncoupled orthogonal translations. Such a reduction instrument also is usable in combination with a plurality of vertebral anchors, such vertebral anchors being any such vertebral anchors as are know to those skilled in the art (e.g., conventional spinal pedicle screw instrumentation) or hereinafter developed so as to form a spinal implant system. Also featured are treatment methods utilizing such a reduction instrument.
摘要翻译：特色是一种减少仪器，其被配置和布置成允许校正脊椎翻译并以独立方式跨越段进行牵引。这种还原器具体现了一个或多个相同的模块，其被配置为需要校正畸形。在更具体的实施例中，一个或多个模块中的每一个具有具有未耦合正交平移的两个自由度（DOF）。这种减少器械允许根据需要通过非耦合的正交平移重新定向椎骨段。这种减速器还可以与多个椎骨锚固件组合使用，这些椎骨锚固件是本领域技术人员已知的任何这样的椎骨锚固件（例如，常规的椎弓根螺钉装置）或下文开发以形成脊柱植入系统。还特征在于使用这种还原装置的处理方法。

6. 发明申请

US20080262584A1 METHODS AND APPARATUS FOR FABRICATING LEADS WITH CONDUCTORS AND RELATED FLEXIBLE LEAD CONFIGURATIONS 有权
标题翻译：用于制造导体和相关灵活引线配置的方法和装置
公开(公告)号：US20080262584A1
公开(公告)日：2008-10-23
申请号：US12047832
申请日：2008-03-13
申请人： Paul A. Bottomley , Parag V. Karmarkar , Justin M. Allen , William A. Edelstein , Peter Piferi , Brian Gore , J. Michael Shifflette
发明人： Paul A. Bottomley , Parag V. Karmarkar , Justin M. Allen , William A. Edelstein , Peter Piferi , Brian Gore , J. Michael Shifflette
IPC分类号： A61N1/05 , H01B7/06 , G01N3/20
CPC分类号： A61N1/08 , A61N1/0488 , A61N1/05 , A61N1/086 , B29C33/126 , B29L2031/753 , G01N3/32 , Y10T29/49071
摘要： MRI/RF compatible leads include at least one conductor, a respective conductor having at least one segment with a multi-layer stacked coil configuration. The lead can be configured so that the lead heats local tissue less than about 10 degrees Celsius (typically about 5 degrees Celsius or less) or does not heat local tissue when a patient is exposed to target RF frequencies at a peak input SAR of at least about 4 W/kg and/or a whole body average SAR of at least about 2 W/kg. Related leads and methods of fabricating leads are also described.
摘要翻译： MRI / RF兼容引线包括至少一个导体，具有至少一个具有多层堆叠线圈配置的段的相应导体。引线可以被配置为使得铅在局部组织中加热小于约10摄氏度（通常约5摄氏度或更低），或者当患者暴露于至少峰值输入SAR的目标RF频率时不加热局部组织约4W / kg和/或全身平均SAR至少约2W / kg。还描述了制造引线的相关引线和方法。

7. 发明授权

US06675033B1 Magnetic resonance imaging guidewire probe 有权
标题翻译：磁共振成像导丝探针
公开(公告)号：US06675033B1
公开(公告)日：2004-01-06
申请号：US09536090
申请日：2000-03-24
申请人： Albert C. Lardo , Xiaoming Yang , Ergin Atalar , Parag Karmarkar , Elliott R. McVeigh , Henry R. Halperin , Christine Enger McNamara , Paul A. Bottomley
发明人： Albert C. Lardo , Xiaoming Yang , Ergin Atalar , Parag Karmarkar , Elliott R. McVeigh , Henry R. Halperin , Christine Enger McNamara , Paul A. Bottomley
IPC分类号： A61B5055
CPC分类号： G01R33/287 , G01R33/34084
摘要： The invention describes a system, method, and means for an MRI guidewire that can be visible on an MRI, can act as an antenna and receive MRI signals from surrounding subject matter, and can allow the use of multiple interventional tools without removal of the guidewire from a subject.
摘要翻译：本发明描述了可以在MRI上可见的用于MRI导丝的系统，方法和装置，可用作天线并从周围主题接收MRI信号，并且可以允许使用多个介入工具而不去除导丝从一个主题。

8. 发明授权

US06628980B2 Apparatus, systems, and methods for in vivo magnetic resonance imaging 有权
公开(公告)号：US06628980B2
公开(公告)日：2003-09-30
申请号：US09817893
申请日：2001-03-26
申请人： Ergin Atalar , Paul A. Bottomley , Parag Karmarkar , Albert C. Lardo , Elias Zerhouni
发明人： Ergin Atalar , Paul A. Bottomley , Parag Karmarkar , Albert C. Lardo , Elias Zerhouni
IPC分类号： A61B5055
CPC分类号： A61B1/00154 , A61B5/055 , A61B34/20 , A61B2034/2051 , A61B2090/374 , A61B2090/3958 , G01R33/285 , G01R33/34007 , G01R33/34084
摘要： The apparatus, systems and methods of the present invention provide for MRI sleeves, probes, and combinations thereof adapted for insertion into a subject, in order to internally image regions of the subject.

9. 发明授权

US4682106A Methods of, and apparatus for, proton decoupling in nuclear magnetic resonance spectroscopy 失效
标题翻译：在核磁共振光谱中质子解耦的方法和装置
公开(公告)号：US4682106A
公开(公告)日：1987-07-21
申请号：US714405
申请日：1985-03-21
申请人： Dimitrios Vatis , Paul A. Bottomley , Thomas H. Foster
发明人： Dimitrios Vatis , Paul A. Bottomley , Thomas H. Foster
IPC分类号： G01R33/48 , A61B5/055 , A61B10/00 , G01N24/12 , G01R33/46 , G01R33/485 , G01R33/08
CPC分类号： G01R33/485 , G01R33/46
摘要： A method for proton decoupling, nuclear Overhauser enhancement and/or in selective saturation magnetic resonance spectroscopy, particularly relevant to in vivo spectroscopic imaging, utilizes a radio-frequency pulse modulated with a truncated (sinc X)/X function capable of being windowed. The radio-frequency pulse is tuned to the frequency of the nuclear species, such as .sup.1 H, to be decoupled or saturated and has a bandwidth adjusted to correspond to the entire chemical shift spectrum of the nuclear species to be decoupled, minimizing the amount of radio-frequency power transmitted into a volume of the irradiated sample. Several methods, and several embodiments of apparatus, for forming the required radio-frequency pulse, are disclosed.
摘要翻译：特别是与体内光谱成像相关的用于质子解耦，核Overhauser增强和/或选择性饱和磁共振光谱的方法利用能够被窗口化的截短（sinc X）/ X函数调制的射频脉冲。射频脉冲被调谐到诸如1H的核物质的频率被解耦或饱和，并且具有调整的带宽以对应于待解耦的核物质的整个化学位移谱，最小化无线电量射频功率传输到被照射样品的体积中。公开了用于形成所需射频脉冲的几种方法和装置的若干实施例。

10. 发明授权

US4641097A Elliptical cross-section slotted-tube radio-frequency resonator for nuclear magnetic resonance imaging 失效
标题翻译：用于核磁共振成像的椭圆截面开槽管射频谐振器
公开(公告)号：US4641097A
公开(公告)日：1987-02-03
申请号：US609043
申请日：1984-05-10
申请人： Paul A. Bottomley , John F. Schenck
发明人： Paul A. Bottomley , John F. Schenck
IPC分类号： H01P7/00 , A61B5/055 , G01R33/343 , G01R33/345 , G01R33/20
CPC分类号： G01R33/345 , G01R33/343 , G01R33/3628 , Y10S505/844
摘要： A radio-frequency coil, for nuclear magnetic resonance imaging at Larmor frequencies associated with a magnetic field of greater than about 0.5 Tesla, comprises a slotted-tube radio-frequency resonator having an elliptical cross-section. First and second complementary outer resonator portions have central bands connecting juxtaposed wing structures; the end of each of the four wings is spaced from a complementary wing portion of the other outer portion and capacitively coupled thereto. An inner structure has a pair of elliptical guard rings placed substantially in registration with the elliptical portions of the outer structure wing portions. The eccentricity ratio of the elliptical cross-section of the resonator and the resonator dimensions are arranged to provide an interior volume into which a human head or body extremity can be placed for imaging purposes.
摘要翻译：用于与大于约0.5特斯拉的磁场相关联的拉莫尔频率的核磁共振成像的射频线圈包括具有椭圆截面的开槽管射频谐振器。第一和第二互补外共振器部分具有连接并置的翼结构的中心带; 四个翼中的每一个的端部与另一个外部部分的互补翼部分间隔开并与其电容耦合。内部结构具有一对基本上与外部结构翼部的椭圆形部对准的椭圆形保护环。谐振器的椭圆截面和谐振器尺寸的偏心率被布置成提供可以放置人体头部或身体末端以用于成像目的的内部容积。

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