Method and system for providing a maximum intensity projection of a non-planar image
    2.
    发明授权
    Method and system for providing a maximum intensity projection of a non-planar image 有权
    提供非平面图像的最大强度投影的方法和系统

    公开(公告)号:US06211674B1

    公开(公告)日:2001-04-03

    申请号:US09311875

    申请日:1999-05-14

    IPC分类号: G01V300

    CPC分类号: G01R33/4833 G01R33/563

    摘要: An imaging method and system generates images of non-planar portions of a three dimensional data point array wherein the non-planar portion corresponds to a non-planar object. The method includes selecting at least two different intermediate imaging planes, each selected plane including at least a portion of the object to be imaged, generating cross-sectional views perpendicular to each intermediate plane, selecting a viewing plane, projecting the cross-sectional views onto the viewing plane to generate transition value sets, and combining the transition value sets to generate values for each pixel in a display.

    摘要翻译: 成像方法和系统生成三维数据点阵列的非平面部分的图像,其中非平面部分对应于非平面物体。 该方法包括选择至少两个不同的中间成像平面,每个选定平面包括待成像对象的至少一部分,产生垂直于每个中间平面的横截面视图,选择观察平面,将横截面视图投影到 观察平面以产生转换值集合,并且组合转换值集合以生成显示器中的每个像素的值。

    Patient electrical isolation system
    3.
    发明授权
    Patient electrical isolation system 失效
    病人电气隔离系统

    公开(公告)号:US5807253A

    公开(公告)日:1998-09-15

    申请号:US944631

    申请日:1997-10-06

    摘要: A patient isolation device is used as a safety device to provide electrical insulation between medical electronic equipment and portions of the equipment which come in contact with the patient. In one implementation of the patient isolation device, an RF coil is incorporated in a catheter connected to medical electronic equipment which tracks the position of the catheter. Typically, there is also medical imaging electronics to provide internal images of the subject along with an indication of the location of the catheter. Typically, the signal from the RF coil is provided to a preamplifier to amplify the signal. The isolation device is placed between the RF coil and the preamplifier such that MR response signals may pass through to the preamplifiers but in the event of a short or electrical malfunction the line voltage will not pass backward into the RF coil causing damage to the patient.

    摘要翻译: 患者隔离装置用作安全装置,以在医疗电子设备与与患者接触的设备的部分之间提供电绝缘。 在患者隔离装置的一个实施方式中,将RF线圈并入连接到跟踪导管位置的医疗电子设备的导管中。 通常,还提供医疗成像电子装置以提供对象的内部图像以及导管位置的指示。 通常,来自RF线圈的信号被提供给前置放大器以放大信号。 隔离装置被放置在RF线圈和前置放大器之间,使得MR响应信号可以通过前置放大器,但是在短路或电气故障的情况下,线路电压将不会向后进入RF线圈,从而导致患者的损坏。

    Flexible lightweight attached phased-array (FLAP) receive coils
    5.
    发明授权
    Flexible lightweight attached phased-array (FLAP) receive coils 失效
    灵活的轻便连接相控阵(FLAP)接收线圈

    公开(公告)号:US6084411A

    公开(公告)日:2000-07-04

    申请号:US234054

    申请日:1999-01-19

    摘要: One or more flexible magnetic Resonance (MR) receive coils are constructed of a flexible material and connected to a flexible base to produce a module. Each module has the coils overlapping by a predetermined amount to minimize coupling between the coils. The modules may be connected by attachment means placed at predefined locations to cause overlap of adjacent coils such that the coupling is minimized. Balanced-unbalanced ("baluns") may be used to couple each receive coil to its lead cable connecting it to the MR imaging electronics. The baluns effectively isolate the coils from the cables and each other to optimize signal-to-noise ratio of the received signal.

    摘要翻译: 一个或多个柔性磁共振(MR)接收线圈由柔性材料构成并连接到柔性基座以产生模块。 每个模块具有重叠预定量的线圈以最小化线圈之间的耦合。 模块可以通过放置在预定位置处的附接装置连接以引起相邻线圈的重叠,使得耦合被最小化。 平衡不平衡(“巴伦”)可用于将每个接收线圈与其连接到MR成像电子设备的引线连接。 不平衡变换器有效地将线圈与电缆隔离开来并优化接收信号的信噪比。

    System and method for interventional procedures using MRI
    7.
    发明授权
    System and method for interventional procedures using MRI 失效
    使用MRI进行介入手术的系统和方法

    公开(公告)号:US07725157B2

    公开(公告)日:2010-05-25

    申请号:US11383608

    申请日:2006-05-16

    IPC分类号: A61B5/05

    摘要: An imaging and interventional system and methods are provided. The system comprises an imaging device for acquiring volumetric image data for an anatomical region of interest, a catheter for acquiring electrophysiological (EP) measurements of the anatomical region of interest, the catheter having at least one tracking coil for detecting signals indicative of a position of the catheter, and, a processor coupled to the catheter for receiving the EP measurements and signals indicative of the position of the catheter. The position of the catheter and EP measurements are combined and superimposed on a resultant image. The method comprises acquiring volumetric image data for an anatomical region of interest, acquiring position data for a catheter inserted in the region of interest, obtaining electrophysiological (EP) measurements for the region of interest and combining the image data, position data and EP measurements into a resultant image for use in the interventional procedure.

    摘要翻译: 提供了成像和介入系统和方法。 该系统包括用于获取感兴趣解剖区域的体积图像数据的成像装置,用于获取感兴趣解剖区域的电生理学(EP)测量值的导管,所述导管具有至少一个跟踪线圈,用于检测指示位置的信号 导管,以及耦合到导管的处理器,用于接收EP测量值和指示导管位置的信号。 将导管的位置和EP测量结合并叠加在合成的图像上。 该方法包括获取感兴趣的解剖区域的体积图像数据,获取插入在感兴趣区域中的导管的位置数据,获得感兴趣区域的电生理(EP)测量值,并将图像数据,位置数据和EP测量结合到 用于介入程序的结果图像。

    SYSTEM AND METHOD FOR INTERVENTIONAL PROCEDURES USING MRI
    8.
    发明申请
    SYSTEM AND METHOD FOR INTERVENTIONAL PROCEDURES USING MRI 失效
    使用MRI的传统程序的系统和方法

    公开(公告)号:US20080009700A1

    公开(公告)日:2008-01-10

    申请号:US11383608

    申请日:2006-05-16

    IPC分类号: A61B5/05

    摘要: An imaging and interventional system and methods are provided. The system comprises an imaging device for acquiring volumetric image data for an anatomical region of interest, a catheter for acquiring electrophysiological (EP) measurements of the anatomical region of interest, the catheter having at least one tracking coil for detecting signals indicative of a position of the catheter, and, a processor coupled to the catheter for receiving the EP measurements and signals indicative of the position of the catheter. The position of the catheter and EP measurements are combined and superimposed on a resultant image. The method comprises acquiring volumetric image data for an anatomical region of interest, acquiring position data for a catheter inserted in the region of interest, obtaining electrophysiological (EP) measurements for the region of interest and combining the image data, position data and EP measurements into a resultant image for use in the interventional procedure.

    摘要翻译: 提供了成像和介入系统和方法。 该系统包括用于获取感兴趣解剖区域的体积图像数据的成像装置,用于获取感兴趣解剖区域的电生理学(EP)测量值的导管,所述导管具有至少一个跟踪线圈,用于检测指示位置的信号 导管,以及耦合到导管的处理器,用于接收EP测量值和指示导管位置的信号。 将导管的位置和EP测量结合并叠加在合成的图像上。 该方法包括获取感兴趣的解剖区域的体积图像数据,获取插入在感兴趣区域中的导管的位置数据,获得感兴趣区域的电生理(EP)测量值,并将图像数据,位置数据和EP测量结合到 用于介入程序的结果图像。

    Method and system for accelerated imaging using parallel MRI
    10.
    发明授权
    Method and system for accelerated imaging using parallel MRI 有权
    使用平行MRI加速成像的方法和系统

    公开(公告)号:US06876199B2

    公开(公告)日:2005-04-05

    申请号:US10452095

    申请日:2003-05-30

    CPC分类号: G01R33/3415 G01R33/5611

    摘要: A method of and system for parallel imaging using a Magnetic Resonance Imaging (MRI) system is provided. The method comprises acquiring a plurality of magnetic resonance (MR) signals from a receiver coil array placed about a subject in the MRI system, where the receiver coil array has a plurality of receiver elements arranged in rows and, during application of a readout gradient in a frequency encoding direction, shifting receiver frequencies by a selectable amount for each row of the array in order to shift a limited field of view (FOV) in the frequency encoding direction.

    摘要翻译: 提供了一种使用磁共振成像(MRI)系统并行成像的方法和系统。 该方法包括从MRI系统中围绕被摄体放置的接收器线圈阵列获取多个磁共振(MR)信号,其中接收器线圈阵列具有排列成行的多个接收器元件,并且在读出梯度 频率编码方向,为了在频率编码方向上移动有限的视场(FOV),将接收机频率移动到阵列的每一行的可选择量。