公开(公告)号：US06288544B1

公开(公告)日：2001-09-11

申请号：US09552177

申请日：2000-04-18

申请人： Matthew A. Bernstein ,  Tsur Bernstein

发明人： Matthew A. Bernstein ,  Tsur Bernstein

IPC分类号： G01V300

CPC分类号： G01R33/56308 ,  G01R33/4835 ,  G01R33/56509

摘要： An MRI system acquires MRA data from two overlapping thin slabs using a 3DTOF pulse sequence. Motion artifacts are reduced by using a reverse centric phase encode order during the first thin slab acquisition and a centric phase encode order during the second thin slab acquisition. Patient movement is reduced by producing a uniform sound with gradient pulse sequences during the interval between thin slab acquisitions and during a preparation period prior to the first thin slab acquisition.

摘要翻译： MRI系统使用3DTOF脉冲序列从两个重叠的薄板获取MRA数据。 在第一薄板采集期间使用反向中心相位编码顺序并在第二薄板采集期间以中心相位编码顺序减少运动伪影。 通过在薄板获得之间的间隔期间和在第一薄板获取之前的准备阶段期间产生具有梯度脉冲序列的均匀声音来减少患者运动。

公开(公告)号：US06201393B1

公开(公告)日：2001-03-13

申请号：US08990651

申请日：1997-12-15

申请人： Matthew A. Bernstein ,  Tsur Bernstein

发明人： Matthew A. Bernstein ,  Tsur Bernstein

IPC分类号： G01V300

CPC分类号： G01R33/56308 ,  G01R33/4835 ,  G01R33/56509

摘要： An MRI system acquires MRA data from two overlapping thin slabs using a 3DTOF pulse sequence. Motion artifacts are reduced by using a reverse centric phase encode order during the first thin slab acquisition and a centric phase encode order during the second thin slab acquisition. Patient movement is reduced by producing a uniform sound with gradient pulse sequences during the interval between thin slab acquisitions and during a preparation period prior to the first thin slab acquisition.

摘要翻译： MRI系统使用3DTOF脉冲序列从两个重叠的薄板获取MRA数据。 在第一薄板采集期间使用反向中心相位编码顺序并在第二薄板采集期间以中心相位编码顺序减少运动伪影。 通过在薄板获得之间的间隔期间和在第一薄板获取之前的准备阶段期间产生具有梯度脉冲序列的均匀声音来减少患者运动。

公开(公告)号：US06452391B1

公开(公告)日：2002-09-17

申请号：US09330585

申请日：1999-06-11

申请人： Tsur Bernstein ,  Mark K. Limkeman

发明人： Tsur Bernstein ,  Mark K. Limkeman

IPC分类号： G01V300

CPC分类号： G01R33/54 ,  G01R33/3854

摘要： An MRI system is provided with normal and quiet modes of operation. The quiet mode may be selected from an operator station, such as via a graphical user interface. When the quiet mode of operation is selected, configuration parameters are used for the particular pulse sequence to be executed in the examination. The configuration parameters for the quiet mode of operation may be derived from those of the normal mode of operation. The quiet mode of operation may, for example, employ gradient pulses having reduced amplitudes and slew rates as compared to those employed in the normal mode of operation. The reduced amplitudes and slew rates, along with changes in timing of the pulses and between pulses of the pulse sequence of the examination result in reduced acoustic noise for accommodating more sensitive patients.

摘要翻译： MRI系统具有正常和安静的操作模式。 安静模式可以从操作员站例如经由图形用户界面来选择。 当选择安静的操作模式时，配置参数用于在检查中执行的特定脉冲序列。 用于安静操作模式的配置参数可以从正常操作模式的参数导出。 与正常工作模式中采用的那些相比，安静的操作模式可以例如采用具有降低的幅度和转换速率的梯度脉冲。 减小的幅度和转换速率以及脉冲的定时和检查的脉冲序列的脉冲之间的变化导致用于容纳更敏感的患者的减少的声学噪声。

公开(公告)号：US5377680A

公开(公告)日：1995-01-03

申请号：US102166

申请日：1993-08-04

申请人： Tsur Bernstein ,  Thomas K. Foo

发明人： Tsur Bernstein ,  Thomas K. Foo

IPC分类号： A61B5/055 ,  G01R33/567

CPC分类号： G01R33/5673 ,  A61B5/0555 ,  G01R33/4818

摘要： Fast NMR pulse sequences are employed to acquire data sets from which a set of images can be reconstructed depicting a patient's heart at successive phases during the cardiac cycle. The number of images is increased by selecting views from adjacent data sets to form interpolated data sets that are employed to reconstruct images depicting the patient's heart at cardiac phases between the successive phases.

摘要翻译： 使用快速NMR脉冲序列来获取数据集，从心脏周期中连续相位可以重建一组图像，描绘患者的心脏。 通过从相邻数据集中选择视图来增加图像的数量，以形成用于重建在连续相之间的心脏阶段描绘患者心脏的图像的内插数据集。

公开(公告)号：US06836535B2

公开(公告)日：2004-12-28

申请号：US10064172

申请日：2002-06-18

申请人： Thomas L. Toth ,  Tsur Bernstein

发明人： Thomas L. Toth ,  Tsur Bernstein

IPC分类号： G21K100

CPC分类号： A61B6/032 ,  A61B6/4035 ,  A61B6/4488 ,  G21K1/10

摘要： The present invention includes a filtering apparatus for a CT imaging system or equivalently for an x-ray imaging system. The filtering apparatus may be translated along a first axis or a transverse axis to with respect to an attenuation pattern of a subject during an imaging session to reduce radiation exposure to anatomical regions of the subject sensitive to radiation exposure and/or regions from which data is not being acquired.

摘要翻译： 本发明包括用于CT成像系统或等效地用于X射线成像系统的过滤装置。 过滤装置可以在成像会话期间沿着第一轴或横向轴线相对于被摄体的衰减图案平移，以减少对辐射照射敏感的对象的解剖区域的辐射和/或数据是 没有被收购

公开(公告)号：US06993117B2

公开(公告)日：2006-01-31

申请号：US10935292

申请日：2004-09-07

申请人： Thomas L. Toth ,  Tsur Bernstein

发明人： Thomas L. Toth ,  Tsur Bernstein

IPC分类号： G21K3/00

CPC分类号： A61B6/032 ,  A61B6/4035 ,  A61B6/4488 ,  G21K1/10

摘要： The present invention includes a filtering apparatus for a CT imaging system or equivalently for an x-ray imaging system. The filtering apparatus may be translated along a first axis or a transverse axis to with respect to an attenuation pattern of a subject during an imaging session to reduce radiation exposure to anatomical regions of the subject sensitive to radiation exposure and/or regions from which data is not being acquired.

公开(公告)号：US20050031084A1

公开(公告)日：2005-02-10

申请号：US10935292

申请日：2004-09-07

申请人： Thomas Toth ,  Tsur Bernstein

发明人： Thomas Toth ,  Tsur Bernstein

IPC分类号： G21K3/00 ,  A61B6/03 ,  G21K1/10 ,  G21K5/02

CPC分类号： A61B6/032 ,  A61B6/4035 ,  A61B6/4488 ,  G21K1/10

摘要： The present invention includes a filtering apparatus for a CT imaging system or equivalently for an x-ray imaging system. The filtering apparatus may be translated along a first axis or a transverse axis to with respect to an attenuation pattern of a subject during an imaging session to reduce radiation exposure to anatomical regions of the subject sensitive to radiation exposure and/or regions from which data is not being acquired.

摘要翻译： 本发明包括用于CT成像系统或等效地用于X射线成像系统的过滤装置。 过滤装置可以在成像会话期间沿着第一轴或横向轴线相对于被摄体的衰减图案平移，以减少对辐射照射敏感的对象的解剖区域的辐射和/或数据是 没有被收购

公开(公告)号：US06597173B1

公开(公告)日：2003-07-22

申请号：US10064406

申请日：2002-07-10

申请人： Tsur Bernstein

发明人： Tsur Bernstein

IPC分类号： G01V300

CPC分类号： G01R33/4833 ,  G01R33/3415

摘要： The present invention relates generally to MR imaging and, more particularly, to a method and apparatus for reconstructing zoom MR images. An RF coil assembly having a number of detection elements is provided. The RF coil assembly is designed such that the number of detection elements that may be used to acquire imaging data may exceed the number of data acquisition channels of the MR system. Accordingly, the detection elements may be grouped into a number of sets wherein each set transmits acquired data to a specific data acquisition channel to acquire data of a larger region-of-interest (ROI) or, alternately, only one set of detection elements corresponding to a smaller ROI may be activated wherein each detection element of the set transmits data to a data acquisition channel. As a result, a zoom image may be reconstructed.

摘要翻译： 本发明一般涉及MR成像，更具体地，涉及用于重建变焦MR图像的方法和装置。 提供具有多个检测元件的RF线圈组件。 RF线圈组件被设计成使得可用于获取成像数据的检测元件的数量可能超过MR系统的数据采集通道的数量。 因此，检测元件可以被分组成多个集合，其中每个集合将获取的数据发送到特定数据获取信道以获取更大的感兴趣区域（ROI）的数据，或者替代地，仅一组检测元素对应 可以激活较小的ROI，其中集合的每个检测元件将数据发送到数据获取通道。 结果，可以重构缩放图像。

公开(公告)号：US07685262B2

公开(公告)日：2010-03-23

申请号：US10350529

申请日：2003-01-24

申请人： Suresh K. Choubey ,  Tsur Bernstein ,  Sandeep N. Gupta ,  Mohsin S. Dawoodbhai ,  April Dorcas ,  Ashish M. Shah ,  Mani Sundararajan ,  John W. Zingsheim

发明人： Suresh K. Choubey ,  Tsur Bernstein ,  Sandeep N. Gupta ,  Mohsin S. Dawoodbhai ,  April Dorcas ,  Ashish M. Shah ,  Mani Sundararajan ,  John W. Zingsheim

IPC分类号： G06F15/177

CPC分类号： G06F19/325 ,  G06F19/00 ,  G06Q50/22 ,  G06Q50/24 ,  H04L67/06 ,  H04L67/12 ,  H04L69/329

摘要： A technique is provided for sharing clinical protocols for diagnostic imaging systems. The clinical protocols generally represent operational parameters, such as configuration data and procedures, which are clinically developed for a particular imaging diagnosis. An interface or access point, such as a network accessible database or website, is provided to facilitate the exchange of these clinical protocols between clinicians. The present technique also may facilitate the formation of new clinical protocols and/or the integration of new clinical protocols into various diagnostic imaging systems. Accordingly, clinicians can electronically exchange and configure a variety of imaging protocols for potentially greater quality in the particular imaging diagnosis.

摘要翻译： 提供了一种用于共享诊断成像系统的临床协议的技术。 临床协议通常表示对于特定成像诊断临床开发的操作参数，例如配置数据和程序。 提供接口或接入点，例如网络可访问数据库或网站，以便于临床医生之间交换这些临床协议。 本技术还可以促进新的临床协议的形成和/或将新的临床协议集成到各种诊断成像系统中。 因此，临床医生可以电子交换和配置各种成像协议，以在特定成像诊断中潜在地提高质量。

公开(公告)号：US4432059A

公开(公告)日：1984-02-14

申请号：US183844

申请日：1980-09-03

申请人： Dan Inbar ,  Tsur Bernstein ,  Yair Shimoni

发明人： Dan Inbar ,  Tsur Bernstein ,  Yair Shimoni

IPC分类号： G03B42/02 ,  A61B6/00 ,  G01T1/164 ,  G01T1/166 ,  G01T1/29 ,  G01T1/20

CPC分类号： G01T1/2978 ,  Y10S128/922

摘要： By reason of the nature of the scanning regimen followed by a scanning gamma camera head, and the shape of the active region of the head, not all of the elemental areas of a scanned radiation field are observed by the active region of the head for the same period of time. This non-uniformity sensitivity of the system is corrected by correction factors that are either analytically calculated or experimentally determined for each given elemental area of the map. The map of an unknown radiation source obtained by following the scanning regimen is corrected by applying the sensitivity correction factors to the contents of corresponding elemental areas of the map.

摘要翻译： 由于扫描方案的性质跟随着扫描伽马相机头部以及头部的有源区域的形状，并非扫描的辐射场的所有元素区域被头部的有源区域观察 同一时期。 系统的这种不均匀性灵敏度是通过对地图的每个给定元素区域进行分析计算或实验确定的校正因子来校正的。 通过将扫描方案获得的未知辐射源的映射通过将灵敏度校正因子应用于地图的相应元素区域的内容来校正。