公开(公告)号：US06564081B1

公开(公告)日：2003-05-13

申请号：US09682913

申请日：2001-10-31

申请人： Frederick J. Frigo ,  Bruce D. Collick ,  Louis M. Frigo ,  Michael R. Hartley ,  Bo Pettersson

发明人： Frederick J. Frigo ,  Bruce D. Collick ,  Louis M. Frigo ,  Michael R. Hartley ,  Bo Pettersson

IPC分类号： A61B5055

CPC分类号： G01R33/3621

摘要： The present invention provides a system and method of increasing the sampling rate for MR data acquisition. By implementing ensemble sampling techniques, the present invention provides higher data sampling rates that are useful for several MR data acquisition applications including Echo Planar Imaging, Functional Magnetic Resonance Imaging, and Sensitivity Encoding Imaging (SENSE) techniques. By multiplying an MR signal by a series of pure sinusoids having the same frequency but shifted by an incremental phase, the MR signal may be separated into a number of channels which can be sampled at lower rates by analog-to-digital converters. The output from the converters may then be reconstructed using one of a number of interpolation techniques to create a single digital channel with increased bandwidth. The single channel with increased bandwidth may then be used to acquire MR data with an improved sampling rate.

摘要翻译： 本发明提供了增加MR数据采集采样率的系统和方法。 通过实施集成采样技术，本发明提供了对于几个MR数据采集应用（包括回波平面成像，功能磁共振成像和灵敏度编码成像（SENSE）技术）有用的较高数据采样率。 通过将MR信号乘以具有相同频率但偏移增量相位的一系列纯正弦曲线，MR信号可以被分离成多个通道，其可以由模数转换器以较低速率进行采样。 然后可以使用多个内插技术中的一个来重建来自转换器的输出，以创建具有增加的带宽的单个数字信道。 带宽增加的单通道随后可用于以改进的采样率采集MR数据。

公开(公告)号：US6097977A

公开(公告)日：2000-08-01

申请号：US1900

申请日：1997-12-31

申请人： Bruce D. Collick ,  Michael R. Hartley

发明人： Bruce D. Collick ,  Michael R. Hartley

IPC分类号： A61B5/055

CPC分类号： A61B5/055 ,  Y10S128/922

摘要： An MRI system performs a real-time scan in which image frames are produced as the image is moved to different locations in the patient. The location at which each set of image data is acquired is compared, and image data acquired at the same location are combined to improve image quality. An autonex feature enables averaging of successive image data acquisitions and a frame rate feature enables combining of partial NEX acquisitions.

摘要翻译： MRI系统执行实时扫描，其中当图像移动到患者中的不同位置时，产生图像帧。 比较获取每组图像数据的位置，并且将在相同位置获取的图像数据组合以提高图像质量。 自动特征功能使得能够对连续的图像数据采集进行平均，并且帧速率特征使得能够组合部分NEX采集。

公开(公告)号：US06433549B1

公开(公告)日：2002-08-13

申请号：US09990667

申请日：2001-11-21

申请人： David E. Dean ,  David Glenn Lee ,  Bruce D. Collick ,  Richard Scott Hinks ,  Michael J. Radziun ,  Scott T. Mansell ,  Donald Elroy Kosak ,  John Edward Lorbiecki

发明人： David E. Dean ,  David Glenn Lee ,  Bruce D. Collick ,  Richard Scott Hinks ,  Michael J. Radziun ,  Scott T. Mansell ,  Donald Elroy Kosak ,  John Edward Lorbiecki

IPC分类号： G01V300

CPC分类号： A61B5/0555

摘要： An apparatus for supporting a patient support bridge member in an MR system where a first end of the bridge is supported by an upright support member on a first side of an MR imaging bore and the bridge extends through the bore so that a second end of the bridge extends out a second side of the bore, the apparatus including a bracket mounted to an MR main magnet on the second side of the bore and extending upwardly to contact and support the bridge there above.

摘要翻译： 一种用于在MR系统中支撑患者支撑桥构件的装置，其中所述桥的第一端由MR成像孔的第一侧上的直立支撑构件支撑，并且所述桥延伸穿过所述孔，使得所述桥的第二端 桥延伸出孔的第二侧，该装置包括安装在孔的第二侧上的MR主磁体的支架，并向上延伸以接触并支撑其上方的桥。

公开(公告)号：US07098662B2

公开(公告)日：2006-08-29

申请号：US11083272

申请日：2005-03-17

申请人： Richard Scott Hinks ,  Bryan J. Mock ,  Bruce D. Collick ,  Frederick Joseph Frigo

发明人： Richard Scott Hinks ,  Bryan J. Mock ,  Bruce D. Collick ,  Frederick Joseph Frigo

IPC分类号： G01V3/00

CPC分类号： G01R33/56554

摘要： A method and system of MR imaging where variable readout gradient filtering (VRGF) is carried out after MR data acquired during gradient field transitions has been phase-corrected. Thus, phase errors can be removed prior to VRGF re-sampling of the MR data. As such, image artifacts due to phase errors can be reduced, improving image fidelity and reducing ghosting especially for poorly calibrated systems.

公开(公告)号：US6011396A

公开(公告)日：2000-01-04

申请号：US2465

申请日：1998-01-02

申请人： Phillip William Eckels ,  Wanxian Wang ,  Bruce D. Collick ,  Kazuhiko Hayakawa ,  Kazuya Hoshino ,  Yuji Inoue

发明人： Phillip William Eckels ,  Wanxian Wang ,  Bruce D. Collick ,  Kazuhiko Hayakawa ,  Kazuya Hoshino ,  Yuji Inoue

IPC分类号： A61B5/055 ,  G01R33/38 ,  G01R33/383 ,  G01R33/387 ,  G01R33/3875 ,  H01F6/00 ,  G01V3/00

CPC分类号： G01R33/3806 ,  G01R33/383

摘要： An open architecture magnetic resonance imaging permanent magnet assembly with moveable magnets and adjustable field inclination with automatic magnetic field homogeneity shimming to enhance imaging and positioning of the magnetic field about the portion of the patient to be imaged while enabling interventional physician access.

摘要翻译： 具有可移动磁体的开放式结构磁共振成像永磁体组件和具有自动磁场均匀性匀场的可调磁场倾斜，以增强围绕要成像的患者部分的磁场的成像和定位，同时使介入医师进入。