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公开(公告)号：US06275721B1
公开(公告)日：2001-08-14
申请号：US09332087
申请日：1999-06-10
IPC分类号： A61B5055
CPC分类号： G01R33/54
摘要： A scan control device located in the bore of an MRI system magnet includes tracking coils and a display. Location and alignment of the scan control device is tracked by the MRI system using signals acquired from the tracking coils. These signals are also used to update the scan parameters such that the scan plane of the image acquired by the MRI system is controlled by the scan control device location and orientation. The image is produced on the display to provide an attending physician with interactive control of the image from the magnet bore.
摘要翻译： 位于MRI系统磁体的孔中的扫描控制装置包括跟踪线圈和显示器。 扫描控制装置的位置和对准由MRI系统使用从跟踪线圈获取的信号来跟踪。 这些信号也用于更新扫描参数，使得由MRI系统获取的图像的扫描平面由扫描控制装置的位置和取向控制。 该图像在显示器上产生，以向主治医师提供来自磁体孔的图像的交互控制。
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公开(公告)号：US06876199B2
公开(公告)日：2005-04-05
申请号：US10452095
申请日：2003-05-30
IPC分类号： G01R33/34 , A61B5/055 , G01R33/3415 , G01R33/54 , G01R33/561 , G01V3/00
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。
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公开(公告)号：US07282915B2
公开(公告)日：2007-10-16
申请号：US10962819
申请日：2004-10-07
申请人： Randy Otto John Giaquinto , Harvey Ellis Cline , Christopher Judson Hardy , Charles Lucian Dumoulin , Paul Arthur Bottomley
发明人： Randy Otto John Giaquinto , Harvey Ellis Cline , Christopher Judson Hardy , Charles Lucian Dumoulin , Paul Arthur Bottomley
IPC分类号： G01V3/00
CPC分类号： G01R33/3415 , G01R33/34007
摘要： An RF coil assembly for use in a multiple receive-channel MRI system is provided. The RF coil assembly is configured as a multi-turn-element RF coil assembly to operate as a surface-coil array in cooperation with the MRI system which is configured to operate in a multiple-channel receive mode.
摘要翻译： 提供了一种用于多接收信道MRI系统的RF线圈组件。 RF线圈组件被配置为多匝元件RF线圈组件，以与被配置为在多通道接收模式中操作的MRI系统协作操作作为表面线圈阵列。
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4.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。
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公开(公告)号：US5999839A
公开(公告)日：1999-12-07
申请号：US16569
申请日：1998-01-30
IPC分类号： G01R33/48 , A61B5/055 , G01R33/28 , G01R33/485 , G01R33/563
CPC分类号： G01R33/563 , G01R33/281 , G01R33/485
摘要： A magnetic resonance (MR) imaging method uses chemical shift and/or slice selective inversion pulse to create angiograms of coronary arteries. In one embodiment blood is doped with a contrast enhancement agent and a sequence of slice selective and chemical shift selective inversion pulses are applied. Detection RF pulses then generate an image signal. In another embodiment two sequential chemical shift inversion pulses are applied followed by detection RF pulses for imaging.
摘要翻译： 磁共振（MR）成像方法使用化学位移和/或切片选择性反转脉冲来产生冠状动脉的血管造影。 在一个实施例中，血液掺杂有对比度增强剂，并且应用片选择和化学位移选择性反转脉冲序列。 检测RF脉冲然后产生图像信号。 在另一个实施例中，施加两个顺序的化学位移反转脉冲，随后检测用于成像的RF脉冲。
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公开(公告)号：US07725157B2
公开(公告)日：2010-05-25
申请号：US11383608
申请日：2006-05-16
申请人： Charles Lucian Dumoulin , Richard Philip Mallozzi , Robert David Darrow , Harvey Ellis Cline , Renee Ann Guhde
发明人： Charles Lucian Dumoulin , Richard Philip Mallozzi , Robert David Darrow , Harvey Ellis Cline , Renee Ann Guhde
IPC分类号： A61B5/05
CPC分类号： A61B5/055 , A61B5/0402 , A61B5/042 , A61B5/06 , A61B5/743 , A61B6/503 , A61B6/504 , A61B8/0891 , A61B34/20 , A61B2034/2051 , A61B2090/364 , A61B2090/374 , G01R33/287
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。
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公开(公告)号：US06175757B1
公开(公告)日：2001-01-16
申请号：US09017573
申请日：1998-02-02
IPC分类号： A61B812
CPC分类号： A61B8/12 , A61B5/055 , A61B5/06 , A61B5/062 , A61B8/4245 , A61B8/4461 , Y10S128/916
摘要： An invasive probe for mapping the walls of a lumen employs a real-time tracking means and a wall distance measurement means. As the probe is advanced within the lumen, the real-time tracking means provides three-dimensional coordinates of the probe's position and orientation. Concurrent with probe localization, the distance between the probe and the lumen walls is measured. Both the probe position and the wall distance measurement are sent to a data acquisition system which in turn provides a graphic or numeric display to the operator. Probe tracking can be performed with radio-frequency, magnetic resonance, ultrasonic techniques or the like. If desired, lumen wall distance measurements can be performed with magnetic resonance or ultrasound methods. Lumen wall distance measurements can also be performed with mechanical devices such as balloons and/or expanding structures.
摘要翻译： 用于映射管腔壁的入侵探针采用实时跟踪装置和壁距测量装置。 当探头在管腔内前进时，实时跟踪装置提供探头位置和方位的三维坐标。 与探头定位同时测量探头与腔壁之间的距离。 探头位置和墙壁距离测量都发送到数据采集系统，该系统又向操作员提供图形或数字显示。 可以使用射频，磁共振，超声波技术等进行探测跟踪。 如果需要，可以用磁共振或超声波方法进行管腔壁距离测量。 腔壁距离测量也可以用诸如球囊和/或膨胀结构的机械装置进行。
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公开(公告)号：US06571020B1
公开(公告)日：2003-05-27
申请号：US09603536
申请日：1999-11-12
IPC分类号： G06K940
CPC分类号： G01S7/52034
摘要： Secondary data set information is incorporated into a primary data set (such as a digital image) retaining a desired dynamic range and retaining the original primary set data quality. The secondary data set information is ‘smuggled’ into the least significant bits of the primary data set to result in an enhanced data set. If desired, the primary data word can be shifted toward the most significant bit. The enhanced data set may be viewed as if it were the original primary data set with existing playback devices, however it now includes additional ‘smuggled’ information which may be played back in coordination with the primary data set information. One example is flow-direction information ‘smuggled’ into an angiographic image. The least significant bits of the enhanced data words may be used to select the color map and color code the images. A user-adjustable intensity threshold can also be employed to select between color maps. Information stored in this fashion results in a substantial savings in disk storage requirements. Also, since the information of the primary and secondary data sets are merged into a single word, they will remain together throughout many different types of processing, such as maximum intensity projection in volumetric imaging.
摘要翻译： 次要数据集信息被并入保留所需动态范围并保留原始主要数据质量的主数据集（例如数字图像）中。 辅助数据集信息被“走私”到主数据集的最低有效位以产生增强的数据集，如果需要，可以将主数据字移向最高有效位，增强数据集可以被看到 好像它是现有播放设备的原始主要数据集，但是它现在包括可以与主数据集信息配合播放的其他“走私”信息。 一个例子是“走私”到血管造影图像中的流向信息，增强数据字的最低有效位可以用于选择彩色图和彩色图像，还可以使用用户可调节的强度阈值来选择 以这种方式存储的信息可以大大节省磁盘存储要求，而且由于主数据集和辅助数据集的信息被合并成一个单词，它们将保持在许多不同类型的处理中，例如 作为体积成像中的最大强度投影。
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公开(公告)号：US6129667A
公开(公告)日：2000-10-10
申请号：US017565
申请日：1998-02-02
CPC分类号： A61B5/06 , A61B1/00183 , A61B5/0084 , A61B5/02007 , A61B8/0841 , A61B5/0075 , A61B5/055
摘要： An invasive probe for determining the morphological characteristics of walls of a lumen employs a real-time tracking means and an optical spectral measurement means. As the probe is advanced within the lumen, the real-time tracking means provides three-dimensional coordinates of the probe's position and orientation. Concurrent with probe localization, measurement of the spectral properties of the lumen wall are made by detecting the reflectance and/or absorption of light at the lumen wall. Both the probe position and the spectral measurement are sent to a data acquisition system which in turn provides an graphic or numeric display to the operator. Probe tracking can be performed with radio-frequency, magnetic resonance, ultrasonic techniques or the like. If desired, spectral measurements can be made in the visible, ultra-violet or infra-red spectral bands to provide optimized detection of chemical species of interest.
摘要翻译： 用于确定管腔壁的形态特征的入侵探针采用实时跟踪装置和光谱测量装置。 当探头在管腔内前进时，实时跟踪装置提供探头位置和方位的三维坐标。 与探针定位同时，通过检测管腔壁上的光的反射和/或吸收来测量管腔壁的光谱特性。 探头位置和光谱测量都被发送到数据采集系统，数据采集系统又向操作者提供图形或数字显示。 可以使用射频，磁共振，超声波技术等进行探测跟踪。 如果需要，可以在可见光，紫外线或红外光谱带中进行光谱测量，以提供感兴趣的化学物质的优化检测。
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10.发明授权
公开(公告)号：US5694142A
公开(公告)日：1997-12-02
申请号：US340783
申请日：1994-11-17
IPC分类号： A61B17/00 , A61B6/03 , A61B19/00 , G06F3/00 , G06F3/01 , G06F19/00 , G06T1/00 , G06T17/40 , G09G5/00
CPC分类号： G06F3/013 , A61B90/36 , G06F19/321 , G06F19/3437 , G06F19/3481 , A61B2090/365 , A61B2090/371 , A61B2090/372 , A61B2090/502 , G06F19/3406
摘要： An interactive three-dimensional (3D) pointing device for selecting points within a subject employs a tracking device which determines the position of the operator, a semi-transparent screen positioned by the operator and the subject and provides this information to a model workstation. The model workstation superimposes computer graphic images of internal structures of the subject on a the semi-transparent screen through which the operator is viewing the subject. The superimposed image is derived from image data either previously generated and stored or obtained with an imaging system. The images of the internal structures are registered with the operator's view of the external structures of the operator. The operator interactively views internal and external structures and the relation between them simultaneously, while moving the screen to select 3D target points at an image depth within the subject. Optionally other input devices may be used to identify current `target points` as selected points. The 3D points are then provided to an output device which utilizes them. Another embodiment employs stereoscopic viewing methods to provide 3D representations of the internal images superimposed on external structures to allow the operator to employ parallax to select 3D points.
摘要翻译： 用于选择对象内的点的交互式三维（3D）定点设备使用确定操作者的位置的跟踪设备，由操作员和被摄体定位的半透明屏幕，并将该信息提供给模型工作站。 模型工作站将被摄体的内部结构的计算机图形图像叠加在操作者正在观看主体的半透明屏幕上。 叠加的图像从先前生成并存储或获得成像系统的图像数据导出。 内部结构的图像以操作员对操作者的外部结构的视图进行记录。 操作者在移动屏幕的同时在内部和外部结构以及它们之间的关系上交互地观察在主体内的图像深度处选择3D目标点。 可选地，可以使用其他输入设备来将当前的“目标点”识别为所选择的点。 然后将3D点提供给利用它们的输出装置。 另一实施例采用立体观看方法来提供叠加在外部结构上的内部图像的3D表示，以允许操作者使用视差来选择3D点。
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