On-line TOF-PET mashed rebinning for continuous bed motion acquisitions
    1.
    发明授权
    On-line TOF-PET mashed rebinning for continuous bed motion acquisitions 有权
    在线TOF-PET捣碎连续床运动采集

    公开(公告)号:US08314380B2

    公开(公告)日:2012-11-20

    申请号:US12558026

    申请日:2009-09-11

    IPC分类号: H01J49/00 G01T1/161

    CPC分类号: G06T11/005

    摘要: A patient bed drive mechanism, under control of a processor, is capable of continuously moving a patient bed through the a TOF-PET detector array having a stationary field of view (FOV) for a distance in excess of the physical extent of an axis of the array FOV. A direct memory access (DMA) rebinner card is coupled to the detector array to receive therefrom a stream of TOF-PET coincidence event data during the extent of movement of the bed. Image projection data are generated in real time from the acquired stream of TOF-PET coincidence event data via the DMA card.

    摘要翻译: 在处理器的控制下,患者床驱动机构能够通过具有静止视野(FOV)的TOF-PET检测器阵列连续地移动患者床,距离超过轴的物理范围 阵列FOV。 直接存储器访问(DMA)重组卡耦合到检测器阵列以在床的移动范围内从其接收TOF-PET重合事件数据流。 图像投影数据通过DMA卡从所获取的TOF-PET符合事件数据流中实时生成。

    List Mode-Based Respiratory and Cardiac Gating in Positron Emission Tomography
    2.
    发明申请
    List Mode-Based Respiratory and Cardiac Gating in Positron Emission Tomography 审中-公开
    基于模式的呼吸和心脏门控正电子发射断层扫描

    公开(公告)号:US20100067765A1

    公开(公告)日:2010-03-18

    申请号:US12559721

    申请日:2009-09-15

    IPC分类号: G06K9/00

    摘要: According to a preferred embodiment, the invention provides a method for extracting internal organ motion from positron emission tomography (PET) coincidence data, the method comprising the following steps: generating a data stream of PET coincidence data using the list mode capability of a PET scanner; dividing the data stream into time frames of a given length; computing a histogram A(i, t) of an axial coincidence distribution for a set of time frames; computing the axial center of mass z(t) for each of the time frames in the set of time frames based on the histogram A(i, t); transforming z(t) into the frequency domain; determining either the frequency contribution caused by respiratory motion, given by fresp, or the frequency contribution caused by heart contractions, given by fcard and Δf, identified in the frequency spectrum |Z(f)|; and carrying out further processing of Z(f) leading to curves zresp(t) and zcard(t) with which a gating sequence is established.

    摘要翻译: 根据优选实施例,本发明提供一种从正电子发射断层摄影(PET)符合数据提取内部器官运动的方法,该方法包括以下步骤:使用PET扫描仪的列表模式能力产生PET符合数据的数据流 ; 将数据流划分成给定长度的时间帧; 计算一组时间轴的轴向一致分布的直方图A(i,t); 基于直方图A(i,t)计算时间帧集合中的每个时间帧的轴向质心z(t); 将z(t)转换为频域; 确定由fresp给出的呼吸运动引起的频率贡献或由频谱| Z(f)|中确定的fcard和&Dgr; f给出的由心脏收缩引起的频率贡献; 并进行Z(f)的进一步处理,导致建立门控序列的曲线zresp(t)和zcard(t)。

    Device for on-line data acquisition in three-dimensional positron emission tomography
    3.
    发明授权
    Device for on-line data acquisition in three-dimensional positron emission tomography 失效
    三维正电子发射断层扫描在线数据采集装置

    公开(公告)号:US07676070B2

    公开(公告)日:2010-03-09

    申请号:US11130631

    申请日:2005-05-16

    IPC分类号: G06K9/00

    CPC分类号: G01T1/2985 A61B6/037 G06T1/20

    摘要: A device for improved on-line histogramming of data acquired in a Positron Emission Tomography (PET) scan. The device is a Smart DRAM (SD) PCI card, of which more than one can be used in combination within a PC-based architecture for on-line histogramming. The SD PCI card is applied as either of a Gating Buffer, a histogramming card, and a normalization buffer. The Gating Buffer card alternately stores an arriving PET data packet stream into two dedicated DRAM banks. The two DRAM banks store and retransmit the packet stream in the order of arrival for an entire physiological cycle. The histogramming SD RMW PCI cards provide a very high rate of histogramming. The extendible daisy-chain of SD RMW PCI cards supports large memory banks across potentially hundreds of SD RMW PCI cards. Under a single PC, a multiple PCI Expansion chassis is employed such that a large number of PCI cards are supported.

    摘要翻译: 用于改进在正电子发射断层扫描(PET)扫描中获取的数据的在线直方图的装置。 该设备是智能DRAM(SD)PCI卡,其中多个可以在基于PC的架构中组合使用,用于在线直方图。 SD PCI卡被应用为门控缓冲器,直方图卡和归一化缓冲器中的任何一个。 门控缓冲卡交替地将到达的PET数据分组流存储到两个专用DRAM组中。 两个DRAM银行以整个生理周期的顺序存储和重新发送分组流。 直方图SD RMW PCI卡提供非常高的直方图率。 SD RMW PCI卡的可扩展菊花链支持可能存在数百个SD RMW PCI卡的大型存储库。 在单个PC下,使用多个PCI扩展机箱,以支持大量的PCI卡。

    On-line DOI rebinning for LSO PET/SPECT spatial resolution
    4.
    发明授权
    On-line DOI rebinning for LSO PET/SPECT spatial resolution 有权
    在线DOI重组LSO PET / SPECT空间分辨率

    公开(公告)号:US06852980B2

    公开(公告)日:2005-02-08

    申请号:US09982344

    申请日:2001-10-18

    IPC分类号: G01T1/164 G01T1/20 G01T1/29

    摘要: A method and apparatus for on-line DOI rebinning for LSO PET/SPECT to improve spatial resolution, for use in a hybrid Positron Emission Tomography (PET)/Single Photon Emission Computed Tomography (SPECT) system running in PET-mode. Data acquisition hardware is used to feed a detector pair coincidence event stream to an on-line rebinner. Gamma centroid location measurements are made by rastering assumed transaxial and radial head positions and the corresponding rebinning maps for optimal back-projected image resolution. Optimal positions are found by collecting a 64-bit list mode file, assuming a crystal position as the centroid for each of the heads, defining a sequence for varying the assumed positions, making the rebinning look-up tables, rebinning the list mode data, histogramming and reconstructing the image, assessing the image resolution, recording the best resolution number and the associated trial position variables, repeating these on the next trial variable set.

    摘要翻译: 用于LSO PET / SPECT的在线DOI重组以提高空间分辨率的方法和装置,用于以PET模式运行的混合正电子发射断层扫描(PET)/单光子发射计算机断层扫描(SPECT)系统。 数据采集​​硬件用于将检测器对重合事件流馈送到在线重组器。 伽马重心位置测量是通过对假设的横轴和径向头部位置以及相应的重新组合图进行掠夺来实现最佳背投影图像分辨率。 通过收集64位列表模式文件,假设晶体位置为每个头的质心,定义用于改变假定位置的序列,使重新排列查找表,重新列出列表模式数据,找到最佳位置, 直方图和重建图像,评估图像分辨率,记录最佳分辨率数字和相关联的试验位置变量,在下一个试验变量集中重复这些变量。

    Target domain profiling of target optical surfaces using excimer laser
photoablation
    5.
    发明授权
    Target domain profiling of target optical surfaces using excimer laser photoablation 失效
    使用准分子激光光刻术对目标光学表面的目标域进行分析

    公开(公告)号:US5294293A

    公开(公告)日:1994-03-15

    申请号:US783293

    申请日:1991-10-28

    申请人: William F. Jones

    发明人: William F. Jones

    摘要: A method for inducing cylinder power into an optical surface which comprises the steps of providing a corneal surface to an apparatus capable of indexing the position of said target to the beam path of a laser capable of photoablating the material of said target, passing said corneal surface through the domain of said laser along at least one axis and controlling the product of the intensity of said laser with time in order to control the amount of ablation of said corneal surface along at least one axis of said corneal surface.

    摘要翻译: 一种用于将气缸动力引入光学表面的方法,其包括以下步骤:向能够将所述靶的位置分度到能够照射所述靶的材料的激光束的光束路径的设备提供角膜表面,使所述角膜表面 沿着至少一个轴线通过所述激光器的区域并且控制所述激光器的强度随时间的乘积,以便沿所述角膜表面的至少一个轴线控制所述角膜表面的消融量。

    Apparatus and methods for weighing railroad cars coupled together and in
motion
    6.
    发明授权
    Apparatus and methods for weighing railroad cars coupled together and in motion 失效
    将铁路车辆称重的装置和方法联接在一起并运动

    公开(公告)号:US4258809A

    公开(公告)日:1981-03-31

    申请号:US493218

    申请日:1974-07-31

    申请人: William F. Jones

    发明人: William F. Jones

    CPC分类号: G01G19/047

    摘要: An apparatus and method for weighing railroad cars coupled together and in motion is disclosed which eliminates the necessity for special scales and, in particular, can be retrofitted and used in conjunction with most existing weigh bridges regardless of the length of the weight bridge, without any modification of the physical construction thereof, and with most existing weigh mechanisms.Generally, the apparatus provides two types of weighing, summation of axle weights and full draft. In addition, combinations of each are possible. During weighing by the summation of axle weights, as each axle enters the weigh bridge, a weight measurement is made and stored in memory. Cars with up to a maximum of nine axles (this is limited by the requirement rather than the electronics) are weighed by adding the axle weights, when the last car axle has entered the weigh bridge. A printer provides a hard copy record of car weights. Full draft weights can be provided, on weigh bridges longer than cars, to provide a more accurate individual car weight. Each axle on the weigh bridge has its equivalent weight stored in memory and during a full draft weight cycle, all axles other than those of the car in full draft are subtracted from the current weight. The final weight is passed to the printer to provide a hard copy record. The axle sum or full draft weight cycles are automatically carried out by signals generated from the track switch logic. The computing unit accepts trains containing cars which may be weighed on axle sum or full draft, depending on the car axle spacing and the weigh bridge length.

    摘要翻译: 公开了一种用于称重联接在一起并在运动中的铁路车辆的装置和方法,其消除了特殊秤的必要性,并且特别是可以与大多数现有的称重桥结合使用,而不考虑重量桥的长度,而没有任何 修改其物理结构,以及大多数现有的称重机制。 通常,该装置提供两种类型的称重,轴重加总和全吃水。 另外,每种组合都是可能的。 在通过轴重加权称重期间,当每个轴进入称重桥时,进行重量测量并存储在存储器中。 当最后一个车轴进入称重桥时,通过加上车轴重量,称重最多可达九个车轴的车辆(由要求限制,而不是电子部件)。 打印机提供汽车重量的硬拷贝记录。 在比桥重的桥梁上可以提供全配重,以提供更精确的单车重量。 称重桥上的每个轴的等效重量存储在记忆体中,并且在整个吃水重量循环期间,除了当前重量之外的所有车辆以外的所有车轴都从全吃水中减去。 最后的重量传递给打印机以提供硬拷贝记录。 通过从轨道开关逻辑产生的信号自动执行车轮总和或全牵伸重量循环。 计算单元接收列车,该列车可以根据车轴间距和称重桥长度,根据车桥总数或全速度进行称重。

    METHOD FOR APPLYING A LAYER OF MATERIAL TO THE SURFACE OF A NON-METALLIC SUBSTRATE
    7.
    发明申请
    METHOD FOR APPLYING A LAYER OF MATERIAL TO THE SURFACE OF A NON-METALLIC SUBSTRATE 审中-公开
    将一层材料应用于非金属基材表面的方法

    公开(公告)号:US20120009409A1

    公开(公告)日:2012-01-12

    申请号:US12832111

    申请日:2010-07-08

    IPC分类号: B32B17/06 B05D5/12 B05D1/36

    CPC分类号: C23C24/04 Y10T428/249921

    摘要: A method is provided for applying a layer (112) of material to a surface of a non-metallic substrate (116) to enhance a performance characteristic. The method includes applying glass backing (114) to the non-metallic substrate (116) and cold spraying mica or boron nitride (BN) particles (128) onto a surface of the glass backing (114). A conductive tape is also provided, which is formed with the method. The conductive tape includes a first layer of an insulation material (114′), where the first layer is formed from a backing including a fiber-based or polymer backing with resilient and flexible properties for storage in a rolled form and a layer of mica particles or boron nitride particles. The conductive tape further includes a second layer (142′) positioned over the layer of particles, and formed from an electrical conductor material.

    摘要翻译: 提供了一种将材料层(112)施加到非金属基底(116)的表面以提高性能特性的方法。 该方法包括将玻璃背衬(114)施加到非金属基底(116)上,并将云母或氮化硼(BN)颗粒(128)冷喷涂到玻璃背衬(114)的表面上。 还提供了用该方法形成的导电带。 导电带包括绝缘材料(114')的第一层,其中第一层由背衬形成,所述背衬包括具有弹性和柔性性能的纤维基或聚合物背衬,用于以卷状存储并且云母颗粒层 或氮化硼颗粒。 导电带还包括位于颗粒层之上并由电导体材料形成的第二层(142')。

    METHOD FOR APPLYING A LAYER OF ELECTRICAL INSULATION MATERIAL TO A SURFACE OF A CONDUCTOR
    8.
    发明申请
    METHOD FOR APPLYING A LAYER OF ELECTRICAL INSULATION MATERIAL TO A SURFACE OF A CONDUCTOR 审中-公开
    将电绝缘材料层应用于导体表面的方法

    公开(公告)号:US20120009336A1

    公开(公告)日:2012-01-12

    申请号:US12832106

    申请日:2010-07-08

    IPC分类号: B05D5/12

    CPC分类号: C23C24/04 H01F5/06

    摘要: A method is provided for applying a layer (12) of electrical insulation material to a surface (14) of a conductor (16). One embodiment of the method involves preparing the surface (14) of the conductor (16), followed by cold spraying a plurality of mica particles (28) onto the surface (14) of the conductor (16). Another embodiment of the method involves preparing the surface (14) of the conductor (16), followed by cold spraying a plurality of boron nitride (BN) particles onto the surface (14) of the conductor (16).

    摘要翻译: 提供了一种将电绝缘材料层(12)施加到导体(16)的表面(14)的方法。 该方法的一个实施例包括制备导体(16)的表面(14),然后将多个云母颗粒(28)冷喷涂到导体(16)的表面(14)上。 该方法的另一实施例包括制备导体(16)的表面(14),然后将多个氮化硼(BN)颗粒冷喷涂到导体(16)的表面(14)上。

    SYSTEMS, MEMORIES, AND METHODS FOR REFRESHING MEMORY ARRAYS
    9.
    发明申请
    SYSTEMS, MEMORIES, AND METHODS FOR REFRESHING MEMORY ARRAYS 有权
    系统,记忆和方法来刷新记忆阵列

    公开(公告)号:US20110194367A1

    公开(公告)日:2011-08-11

    申请号:US12702037

    申请日:2010-02-08

    IPC分类号: G11C29/00 G11C7/00

    摘要: Memories, systems, and methods for refreshing are provided, such as a memory with an array of memory cells divided into sections. Memories include replacement elements having a digit line, and detecting circuitry coupled to the digit line of at least one section of the memory cell array and coupled to the digit line of the replacement element. Memories include control logic configured to selectively refresh the replacement element at an occurrence when a non-neighboring section of the memory cell array relative to the replacement element is refreshed. Other memories, systems, and methods are provided.

    摘要翻译: 提供了用于刷新的存储器,系统和方法,例如具有划分为部分的存储器单元阵列的存储器。 存储器包括具有数字线的替换元件,以及耦合到存储单元阵列的至少一个部分的数字线的耦合到替换元件的数字线的检测电路。 存储器包括控制逻辑,其被配置为当相对于替换元件的存储器单元阵列的非相邻部分被刷新时,在出现时有选择地刷新替换元件。 提供其他记忆,系统和方法。

    DEFINING LOST EVENT TALLEY TAG PACKETS WHEN PET COUNT RATES EXCEED AVAILABLE ACQUISITION BANDWIDTH
    10.
    发明申请
    DEFINING LOST EVENT TALLEY TAG PACKETS WHEN PET COUNT RATES EXCEED AVAILABLE ACQUISITION BANDWIDTH 有权
    当PET计数超过可用的获取带宽时,定义丢失的事件TALLEY TAG PACKETS

    公开(公告)号:US20100061263A1

    公开(公告)日:2010-03-11

    申请号:US12558055

    申请日:2009-09-11

    IPC分类号: H04L12/26

    CPC分类号: G01T1/00 H04L67/12 H04L69/40

    摘要: A system identifies when received packets are lost at a node in a multi-node processing chain. The system processing chain may include a gantry interface module for receiving coincident event data from a PET (Positron Emission Tomography) detector array, a DMA (direct memory access) rebinner card, and a transmission line coupled between the gantry interface module and the DMA card. FPGA and FIFO elements in each processing portion receive packets that may be lost if there is insufficient FIFO capacity. Lost packets are marked, discarded, and counted. At specified intervals, set in accordance with a threshold number of packets received a lost tally data packet is generated that includes count information for lost packets. The lost tally data packet is forwarded downstream when sufficient storage capacity exists.

    摘要翻译: 系统识别在多节点处理链中的节点处收到的数据包丢失的情况。 系统处理链可以包括用于从PET(正电子发射断层扫描)检测器阵列,DMA(直接存储器访问)重新接收器卡和耦合在台架接口模块和DMA卡之间的传输线接收重合事件数据的龙门架接口模块 。 每个处理部分的FPGA和FIFO元素接收到如果FIFO容量不足可能会丢失的数据包。 丢失的数据包被标记,丢弃和计数。 按指定间隔设置,根据接收到的丢包数据包的阈值数量,生成包括丢失数据包的计数信息。 当存在足够的存储容量时,丢失的计数数据分组被转发到下游。