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1. 发明授权

US4613820A RF shielded room for NMR imaging system 失效
标题翻译： RF屏蔽室用于NMR成像系统
公开(公告)号：US4613820A
公开(公告)日：1986-09-23
申请号：US597803
申请日：1984-04-06
申请人： William A. Edelstein , David R. Eisner , Rowland W. Redington , Lowell S. Smith
发明人： William A. Edelstein , David R. Eisner , Rowland W. Redington , Lowell S. Smith
IPC分类号： A61B5/055 , A61B10/00 , E04H5/02 , E04H5/06 , G01D11/24 , G01R33/32 , G01R33/42 , G01R33/422 , G12B17/02 , H05K9/00 , G01R33/20
CPC分类号： H05K9/00 , G01D11/24 , G01R33/42 , G01R33/422 , Y10S505/844 , Y10S505/872
摘要： A radio-frequency shielded room for a nuclear magnetic resonance imaging system has at least one electrically-conductive shield wall substantially enclosing a predetermined volume adjacent to one end of the bore formed through an imaging magnet within which bore the imaging process is carried out. The at least one wall has an aperture therethrough substantially at and in registration with the one bore end. A hollow shield member, of an electrically-conductive material, extends through the magnet bore and has a first end region periphery aligned with and substantially electrically connected to the entire periphery of the aperture in the at least one wall. A second end of hollow shield member extends at least to the remaining end of the magnet bore, where it is enclosed with an electrically-conductive cap substantially electrically connected about the entire periphery of the hollow shield member second end. The at least one wall, the hollow shield member and the second end cap form a shielded room substantially completely enclosing the volume extending through the magnet bore and adjacent to one end thereof, which volume is effectively shielded from radio frequency signals emanating from outside the enclosed volume.
摘要翻译：用于核磁共振成像系统的射频屏蔽室具有至少一个导电屏蔽壁，其基本上围绕通过成像磁体形成的孔的一端附近的预定体积，在该孔内进行成像处理。所述至少一个壁具有基本上与所述一个孔端部对准并与其一致的孔。导电材料的中空屏蔽构件延伸穿过磁体孔，并且具有与至少一个壁中的孔的整个周边对准并基本上电连接的第一端区周边。中空屏蔽构件的第二端至少延伸到磁体孔的剩余端部，在那里其被围绕中空屏蔽构件第二端的整个周边基本上电连接的导电盖封闭。所述至少一个壁，所述中空屏蔽构件和所述第二端盖形成屏蔽室，其基本上完全包围延伸通过所述磁体孔并且邻近所述磁体孔的体积，所述体积被有效地屏蔽在从封闭的外部发出的射频信号卷。

2. 发明授权

US4667159A Method of, and apparatus for, minimizing magnetic resonance imaging artifacts due to power line interference 失效
标题翻译：由于电力线干扰而使磁共振成像伪影最小化的方法和装置
公开(公告)号：US4667159A
公开(公告)日：1987-05-19
申请号：US743114
申请日：1985-06-10
申请人： Raymond J. Hodsoll, Jr. , Steven G. Karr , William M. Leue , Lowell S. Smith , Rowland W. Redington , Paul A. Bottomley , William A. Edelstein
发明人： Raymond J. Hodsoll, Jr. , Steven G. Karr , William M. Leue , Lowell S. Smith , Rowland W. Redington , Paul A. Bottomley , William A. Edelstein
IPC分类号： G01R33/565 , G01R33/20
CPC分类号： G01R33/565
摘要： Power line interference artifacts in a magnetic resonance image are minimized by the process of: providing a sequential plurality of imaging signal sequences, the totality of which sequences is required for determining the value of each image pixel in an image array thereof; requesting the start of each sequence of the plurality of imaging signal sequences prior to the actual time at which each such signal sequence should commence; preparing a recognition element prior to the desired actual commencement time; recognizing a predetermined occurrence of a repetitive power line signal parameter to provide a first signal; setting the recognition element responsive to the first signal to only then cause the signal sequence start request to actually cause commencement of the associated signal sequence; and causing each signal sequence to occur in essentially an integral number of sequential repetitive cycles of the power line signal waveform to minimize the magnitude of power line frequency signal interference artifacts in the resulting magnetic resonance image.
摘要翻译：通过以下处理使磁共振图像中的电力线干涉伪影最小化：提供顺序多个成像信号序列，确定其图像阵列中每个图像像素的值所需的序列的总和; 在每个这样的信号序列应该开始的实际时间之前请求开始多个成像信号序列的每个序列; 在所需的实际开始时间之前准备识别元素; 识别重复电力线信号参数的预定出现以提供第一信号; 设置响应于第一信号的识别元件，仅使信号序列开始请求实际上引起相关信号序列的开始; 并且使得每个信号序列在电力线信号波形的基本上整数个顺序的重复周期中发生，以使得到的磁共振图像中的电力线频率信号干扰伪影的大小最小化。

3. 发明授权

US4689563A High-field nuclear magnetic resonance imaging/spectroscopy system 失效
标题翻译：高场核磁共振成像/光谱系统
公开(公告)号：US4689563A
公开(公告)日：1987-08-25
申请号：US743125
申请日：1985-06-10
申请人： Paul A. Bottomley , William A. Edelstein , Howard R. Hart, Jr. , John F. Schenck , Rowland W. Redington , William M. Leue
发明人： Paul A. Bottomley , William A. Edelstein , Howard R. Hart, Jr. , John F. Schenck , Rowland W. Redington , William M. Leue
IPC分类号： G01R33/36 , G01R33/38 , G01R33/485 , G01R33/20
CPC分类号： G01R33/381 , G01R33/3607 , G01R33/485 , G01R33/3815
摘要： A magnetic resonance system for both imaging and spectroscopy of a sample of non-magnetic material (such as a portion of the human anatomy and the like) at one static magnetic field magnitude in excess of 0.7 Tesla (T), utilizes a superconducting magnet having a room-temperature bore of diameter sufficiently large to place therein not only the desired sample but also a set of gradient magnetic field-producing coils and at least one radio-frequency coil for exciting and/or receiving response signals from the sample to be examined. The entire magnetic system has suitably-small temporal and positional field variations to allow imaging to be accomplished at the resonant frequencies of nuclei including .sup.1 H, .sup.13 C, .sup.19 F, .sup.23 Na and .sup.31 P. The system includes a novel interface subsystem, itself including a novel gradient signal switching circuit, for acquiring imaging data in relatively short time intervals.
摘要翻译：在超过0.7特斯拉（T）的一个静态磁场强度下，用于非磁性材料样品（例如人体解剖结构等的一部分）的成像和光谱学的磁共振系统利用具有直径足够大的室温孔，不仅放置所需的样品，而且还设置一组梯度磁场产生线圈和至少一个用于激发和/或接收来自待检样品的响应信号的射频线圈。整个磁系统具有适当小的时间和位置场变化，以允许在包括1H，13C，19F，23Na和31P的核的共振频率下实现成像。该系统包括一个新颖的接口子系统，本身包括一个新颖的梯度信号切换电路，用于以较短的时间间隔采集成像数据。

4. 发明授权

US4618827A Method for high-spatial-resolution spectroscopic NMR imaging of chemically-shifted nuclei 失效
标题翻译：化学位移核的高空间分辨率光谱NMR成像方法
公开(公告)号：US4618827A
公开(公告)日：1986-10-21
申请号：US648567
申请日：1984-09-10
申请人： Rowland W. Redington , Leon Axel
发明人： Rowland W. Redington , Leon Axel
IPC分类号： A61B10/00 , A61B5/055 , G01N24/08 , G01N33/20 , G01R33/48 , G01R33/485 , G01R33/20
CPC分类号： G01R33/485
摘要： An improved method for providing a high-spatial-resolution NMR image, having resolved artifact-free NMR images of chemically-shifted nuclei, includes: forming a pair of NMR images each having imaging components of each of the chemically-shifted nuclei due to projections in one of a pair of opposite directions along a common line; mirroring the imaging components of one of the NMR images about a line orthogonal to the common line; registering and combining the mirrored image and the other image to eliminate a first one of the components and thus produce a composite image containing only the other component and a negative of the other component offset by twice the chemical shift; and forming a resolved image of the other component by processing the composite image to eliminate the offset negative image. The resolved image may then be combined with one or more of the NMR images to produce a resolved image of the first component. The method requires only 2N projections to form the two N-by-N NMR images.
摘要翻译：用于提供具有化学位移核的分辨的无伪影NMR图像的高空间分辨率NMR图像的改进方法包括：形成一对NMR图像，每个NMR图像具有由于突出部分的每个化学位移核的成像分量沿着公共线的一对相反方向之一; 将关于与公共线正交的线的NMR图像中的一个的成像组件镜像; 注册和组合镜像图像和其他图像以消除部件中的第一个，从而产生仅包含偏移了两倍化学位移的另一部件的另一部件和负片的合成图像; 以及通过处理所述合成图像来形成所述另一分量的分辨图像以消除所述偏移负像。然后可以将解析的图像与一个或多个NMR图像组合以产生第一组分的分辨图像。该方法仅需要2N个投影来形成两个N-N NMR图像。

5. 发明授权

US4339687A Shadow mask having a layer of high atomic number material on gun side 失效
标题翻译：阴影掩模在炮一侧具有一层高原子序数材料
公开(公告)号：US4339687A
公开(公告)日：1982-07-13
申请号：US154221
申请日：1980-05-29
申请人： Rowland W. Redington
发明人： Rowland W. Redington
IPC分类号： H01J29/07
CPC分类号： H01J29/07 , H01J2229/0777
摘要： A cathode ray tube of the shadow mask type has a layer of high atomic number material fabricated upon the shadow mask surface nearest to at least one electron gun, to increase backscatter of electrons impinging upon the non-aperture areas of the shadow mask, thereby reducing local heating of the mask and maintaining color purity of the cathode ray tube even at increased brightness levels.
摘要翻译：荫罩类型的阴极射线管具有在最靠近至少一根电子枪的荫罩表面上制造的高原子序数材料层，以增加撞击在荫罩的非孔径区域上的电子的反向散射，从而减少面罩的局部加热，即使在增加的亮度水平下也能保持阴极射线管的色纯度。

6. 发明授权

US4196352A Multiple purpose high speed tomographic x-ray scanner 失效
标题翻译：多用途高速断层X线扫描仪
公开(公告)号：US4196352A
公开(公告)日：1980-04-01
申请号：US900781
申请日：1978-04-28
申请人： Walter H. Berninger , Rowland W. Redington
发明人： Walter H. Berninger , Rowland W. Redington
IPC分类号： G01N23/04 , A61B6/03 , G03B41/16
CPC分类号： A61B6/032 , A61B6/4007 , A61B6/4085 , A61B6/4275 , A61B6/4014 , A61B6/4266
摘要： A multiple source, rotating, tomographic x-ray scanner includes x-ray sources adaptably configurable to operate in two modes. The first mode of operation, in which the sources are planarly configured, permits high speed, single slice scans to be made. The second mode of operation in which the x-ray sources are configured so as to scan distinct, but contiguous planes, permits multiple slices to be made in a single scan.
摘要翻译：多源旋转X线扫描仪包括可自动配置的X射线源，可在两种模式下工作。源的平面配置的第一种操作模式允许进行高速单片扫描。其中x射线源被配置为扫描不同但邻接的平面的第二操作模式允许在单个扫描中进行多个切片。

7. 发明授权

US4581582A High-spatial-resolution spectroscopic NMR imaging of chemically-shifted nuclei 失效
标题翻译：化学位移核的高空间分辨率光谱NMR成像
公开(公告)号：US4581582A
公开(公告)日：1986-04-08
申请号：US565305
申请日：1983-12-27
申请人： Rowland W. Redington
发明人： Rowland W. Redington
IPC分类号： A61B10/00 , A61B5/055 , G01N24/08 , G01R33/48 , G01R33/485 , G06T3/00 , G01R33/20
CPC分类号： G06T3/0068 , G01R33/485
摘要： A method for providing a high-spatial-resolution NMR image, having resolved artifact-free NMR images of chemically-shifted nuclei, includes: forming independent NMR images having imaging components due to each of the chemically-shifted nuclei; registering and combining the images to eliminate one of the components and produce a composite image containing the other component and a negative of the other component offset by the chemical shift; and forming a resolved image of the component by processing the composite image to eliminate the negative. The resolved image may then be combined with one or more of the NMR images to produce a resolved image of the first component. The method requires only 2N projections to form the two independent N-by-N NMR images.
摘要翻译：用于提供具有化学位移核的分辨的无伪影NMR图像的高空间分辨率NMR图像的方法包括：由于每个化学位移的核形成具有成像分量的独立NMR图像; 注册和组合图像以消除其中一个组件，并产生包含其他组件的复合图像和由化学位移偏移的另一个组件的负值; 以及通过处理所述合成图像以消除所述分量来形成所述分量的分辨图像。然后可以将解析的图像与一个或多个NMR图像组合以产生第一组分的分辨图像。该方法仅需要2N个投影来形成两个独立的N-by-N-NMR图像。

8. 发明授权

US4015836A Mammography table 失效
标题翻译：乳房X线摄影表
公开(公告)号：US4015836A
公开(公告)日：1977-04-05
申请号：US649707
申请日：1976-01-16
申请人： Rowland W. Redington , John L. Henkes, Jr.
发明人： Rowland W. Redington , John L. Henkes, Jr.
IPC分类号： A61B6/00 , A61B6/04 , A61G13/00
CPC分类号： A61B6/502 , A61B6/04 , A61B6/0435 , A61B6/4423
摘要： A mammography machine for examination of a pendant breast contained in a fluid transmission medium. Patient support is provided at the upper rib cage, lower rib cage, and the shoulder adjacent the breast undergoing examination. X-ray scans are accomplished by rotation about a vertical axis extending through the pendant breast.Patient loading is facilitated by a fabric sling rotatably affixed about a horizontal axis adjacent the lower body of the patient.
摘要翻译：一种用于检查包含在流体传播介质中的垂饰乳房的乳腺摄影机。患者支架设置在上肋骨，下肋骨和肩关节乳房正在进行检查。 X射线扫描是通过围绕延伸穿过垂直乳房的垂直轴旋转来实现的。

9. 发明授权

US4516582A NMR blood flow imaging 失效
标题翻译： NMR血流成像
公开(公告)号：US4516582A
公开(公告)日：1985-05-14
申请号：US490605
申请日：1983-05-02
申请人： Rowland W. Redington
发明人： Rowland W. Redington
IPC分类号： G01R33/20 , A61B5/026 , A61B5/055 , A61B10/00 , G01F1/716 , G01N24/00 , G01R33/563 , A61B5/02
CPC分类号： G01R33/56308 , A61B5/0263 , G01F1/716 , A61B5/743 , G01R33/5635
摘要： A method and apparatus for producing two-dimensional, plan view images of in vivo blood flow networks using unique nuclear magnetic resonance (NMR) pulse sequences are disclosed. The method teaches the use of a pair of 90.degree. selective pulses separated by a delay time optimized to provide images with enhanced blood flow contrast by discriminating against stationary media surrounding the blood flow path. For the instant method, two-dimensional images are compiled by the illustrative apparatus using a collection of NMR slice data, wherein each slice reflects a one-dimensional projection of NMR received signal data in a thin planar slab selected to be generally orthogonal to the primary blood flow network. Further alternative embodiments discuss the use of free induction decay (FID) signals, as well as single pulse and multiple pulse spin echo sequences.
摘要翻译：公开了使用独特的核磁共振（NMR）脉冲序列来生产体内血流网络二维平面图的方法和装置。该方法教导了使用一对90°选择脉冲，其被延迟时间分隔，优化后通过区分血流路径周围的静止介质来提供增强的血流对比度的图像。对于本方法，通过说明性装置使用NMR切片数据的集合来编译二维图像，其中每个切片将NMR接收信号数据的一维投影反映在被选择为大致正交于初级血流网络。另外的替代实施例讨论了使用自由感应衰减（FID）信号以及单脉冲和多脉冲自旋回波序列。

10. 发明授权

US3986761A Method of manufacturing semiconductor camera tube targets 失效
标题翻译：制造半导体照相机管道目标的方法
公开(公告)号：US3986761A
公开(公告)日：1976-10-19
申请号：US477615
申请日：1965-08-05
申请人： Rowland W. Redington
发明人： Rowland W. Redington
IPC分类号： H01J9/233 , H01J9/38 , H02H1/02
CPC分类号： H01J9/38 , H01J9/233
摘要： 1. The method of manufacturing a camera tube target from a semiconductor material for placement in a camera tube prior to degassing thereof comprising the steps of initially doping the semiconductor material with an impurity for rendering it sensitive to a desired radiation spectrum but in a quantity less than required for sensitivity in said desired radiation spectrum; annealing said semiconductor material at a temperature greater than the subsequent degassing temperature for a period of time effective to increase the impurity concentration to a level sufficient to render the semicoductor material sensitive to the desired radiation spectrum, said concentration being substantially more stable at lower degassing temperatures than the initial impurity concentration; positioning said semiconductor material as a target within a radiation sensitive camera tube enclosure; and degassing said camera tube enclosure by heating said enclosure including said target for driving the gas from said enclosure.

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