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11. 发明授权

US07412280B2 Systems and methods for analyzing an abnormality of an object 有权
标题翻译：用于分析物体异常的系统和方法
公开(公告)号：US07412280B2
公开(公告)日：2008-08-12
申请号：US10611296
申请日：2003-07-01
申请人： Sarah Rose Hertel , Stanley H. Fox , Alexander Ganin , Charles William Stearns
发明人： Sarah Rose Hertel , Stanley H. Fox , Alexander Ganin , Charles William Stearns
IPC分类号： A61B5/05 , A61B6/00
CPC分类号： G06T7/0012 , A61B6/032 , A61B6/037 , A61B6/5235 , G06T7/30
摘要： In one embodiment, a method for analyzing at least one abnormality of an object is described. The method includes obtaining a first image containing an abnormality using a first modality, obtaining a second image containing the abnormality using a second modality, selecting a first region of interest located within the first image, determining an anatomical size of the abnormality based on the first region of interest in the first image, and determining a relative metabolic activity based on a second region of interest within the second image.
摘要翻译：在一个实施例中，描述了用于分析对象的至少一个异常的方法。该方法包括使用第一模式获得包含异常的第一图像，使用第二模式获得包含异常的第二图像，选择位于第一图像内的第一感兴趣区域，基于第一模式确定异常的解剖尺寸第一图像中的感兴趣区域，以及基于第二图像内的第二感兴趣区域确定相对代谢活动。

12. 发明申请

US20080164875A1 EXCLUSION OF COMPROMISED PET DATA DURING SIMULTANEOUS PET-MR ACQUISITION 有权
标题翻译：同时PET-MR获取期间排除PET数据
公开(公告)号：US20080164875A1
公开(公告)日：2008-07-10
申请号：US11621622
申请日：2007-01-10
申请人： Robert H. Haworth , Steven G. Ross , Charles W. Stearns , Jason A. Polzin , Alexander Ganin
发明人： Robert H. Haworth , Steven G. Ross , Charles W. Stearns , Jason A. Polzin , Alexander Ganin
IPC分类号： G01T1/161 , G01R33/48
CPC分类号： G01R33/481 , G01R33/28 , G01T1/1603
摘要： A system and method for simultaneously acquiring PET and MR data from a subject of interest with a hybrid PET-MR scanner includes monitoring transmission times of RF and gradient coils of the MR equipment and blanking segments of the PET data stream accordingly. By excluding PET data acquired during active MR transmissions, the remaining PET data used for image reconstruction will provide improved PET image quality.
摘要翻译：利用混合PET-MR扫描仪同时从感兴趣的对象采集PET和MR数据的系统和方法包括相应地监测MR设备的RF设备和梯形线圈的传输时间以及PET数据流的消隐段。通过排除在有源MR传输期间获取的PET数据，用于图像重建的剩余PET数据将提供改进的PET图像质量。

13. 发明授权

US06914958B2 Multi-plane acquisition in digital x-ray radiography 有权
标题翻译：在数字X射线摄影中进行多平面采集
公开(公告)号：US06914958B2
公开(公告)日：2005-07-05
申请号：US09682001
申请日：2001-07-06
申请人： Alexander Ganin
发明人： Alexander Ganin
IPC分类号： A61B6/03 , A61B6/04 , H05G1/60
CPC分类号： A61B6/0457 , A61B6/032 , A61B6/469 , A61B6/488 , G06F19/00
摘要： A method is provided for acquiring digital x-ray images. Scan parameters designating slices of interest from a patient anatomy are identified. The travel distance and the speed of the x-ray tube and the detector are determined from the scan parameters. The patient is scanned in a first direction to obtain a first x-ray image utilizing a servo-tomo function based on the scan parameters. The image is saved in an image storage device and is displayed. The patient is scanned in a second direction to obtain a second x-ray image utilizing the servo-tomo function based on the scan parameters. The image is saved and displayed simultaneously with the first image in a multi-image format. After each scan, the operator may modify the scan parameters designating a slice of interest before initiating the next scan.
摘要翻译：提供了一种用于获取数字X射线图像的方法。识别从患者解剖结构指定感兴趣切片的扫描参数。从扫描参数确定X射线管和检测器的移动距离和速度。以第一方向扫描患者，以基于扫描参数获得利用伺服断层功能的第一x射线图像。图像保存在图像存储设备中并显示。基于扫描参数，利用伺服断层功能，沿第二方向扫描患者以获得第二X射线图像。图像以多图像格式与第一个图像同时保存和显示。在每次扫描之后，操作员可以在开始下一次扫描之前修改指定感兴趣的切片的扫描参数。

14. 发明授权

US06291997B1 Correction for gradient amplifier hysteresis in acquired MRI data 有权
标题翻译：获取MRI数据中梯度放大器迟滞的校正
公开(公告)号：US06291997B1
公开(公告)日：2001-09-18
申请号：US09452440
申请日：1999-12-02
申请人： Kevin F. King , Alexander Ganin , Neville D. Gai
发明人： Kevin F. King , Alexander Ganin , Neville D. Gai
IPC分类号： G01V300
CPC分类号： G01R33/56518 , G01R33/3852
摘要： Image artifacts produced by residual magnetization in elements of the gradient field amplifier system are reduced by driving the residual magnetization to a preselected value at the end of each imaging pulse sequence. Reset gradient pulses are produced by the gradient field amplifier system after each signal is acquired to drive the residual magnetization to a selected value. A number of different reset gradient waveforms may be used, and they may be produced in a number of different ways.
摘要翻译：通过在每个成像脉冲序列结束时将残余磁化驱动到预选值，减少梯度场放大器系统的元件中由残余磁化产生的图像伪影。在获取每个信号之后，由梯度场放大器系统产生复位梯度脉冲以将剩余磁化驱动到所选择的值。可以使用多个不同的复位梯度波形，并且它们可以以多种不同的方式产生。

15. 发明申请

US20120051664A1 MOTION COMPENSATION IN IMAGE PROCESSING 有权
标题翻译：图像处理中的运动补偿
公开(公告)号：US20120051664A1
公开(公告)日：2012-03-01
申请号：US12873039
申请日：2010-08-31
申请人： Girishankar Gopalakrishnan , Alexander Ganin , Ravindra Mohan Majeshwar , Kris Filip Johan Jules Thielemans , Scott David Wollenweber , Floribertus P.M. Heukensfeldt Jansen , Arunabha Shasanka Roy
发明人： Girishankar Gopalakrishnan , Alexander Ganin , Ravindra Mohan Majeshwar , Kris Filip Johan Jules Thielemans , Scott David Wollenweber , Floribertus P.M. Heukensfeldt Jansen , Arunabha Shasanka Roy
IPC分类号： G06K9/32
CPC分类号： G06T7/38 , G06T5/002 , G06T5/40 , G06T5/50 , G06T7/20 , G06T7/269 , G06T7/30 , G06T11/005 , G06T2207/10016 , G06T2207/10104 , G06T2207/10108 , G06T2207/20221 , G06T2207/30004 , G06T2211/412
摘要： Methods and systems for processing a set of images are described. In accordance with this disclosure, images are registered and an analysis is performed in view of one or more constraints (such as constraints based upon anatomical or physiological considerations). Weighting factors are determined based on the analysis. The weighting factors are used in subsequent processing of the registered (and/or unregistered) images and/or to formulate a visualization that conveys the degree of confidence in the motion estimation used in the registration process.
摘要翻译：描述用于处理一组图像的方法和系统。根据本公开，记录图像，并且根据一个或多个约束（诸如基于解剖学或生理考虑的约束）来执行分析。加权因子根据分析确定。加权因子用于后续的注册（和/或未注册）图像的处理和/或制定传达在注册过程中使用的运动估计的置信度的可视化。

16. 发明授权

US07847552B2 Exclusion of compromised PET data during simultaneous PET-MR acquisition 有权
标题翻译：同时PET-MR采集期间排除了妥协的PET数据
公开(公告)号：US07847552B2
公开(公告)日：2010-12-07
申请号：US11621622
申请日：2007-01-10
申请人： Robert H. Haworth , Steven G. Ross , Charles W. Stearns , Jason A. Polzin , Alexander Ganin
发明人： Robert H. Haworth , Steven G. Ross , Charles W. Stearns , Jason A. Polzin , Alexander Ganin
IPC分类号： G01V3/00
CPC分类号： G01R33/481 , G01R33/28 , G01T1/1603
摘要： A system and method for simultaneously acquiring PET and MR data from a subject of interest with a hybrid PET-MR scanner includes monitoring transmission times of RF and gradient coils of the MR equipment and blanking segments of the PET data stream accordingly. By excluding PET data acquired during active MR transmissions, the remaining PET data used for image reconstruction will provide improved PET image quality.
摘要翻译：利用混合PET-MR扫描仪同时从感兴趣的对象采集PET和MR数据的系统和方法包括相应地监测MR设备的RF设备和梯形线圈的传输时间以及PET数据流的消隐段。通过排除在有源MR传输期间获取的PET数据，用于图像重建的剩余PET数据将提供改进的PET图像质量。

17. 发明申请

US20060097175A1 Method and system for imaging a patient 有权
公开(公告)号：US20060097175A1
公开(公告)日：2006-05-11
申请号：US10985752
申请日：2004-11-10
申请人： Alexander Ganin , Floribertus Philippus Martinus Jansen , Ricardo Avila , Dinko Eduardo Trotter , Ravindra Manjeshwar , James Miller , Thomas Sebastian
发明人： Alexander Ganin , Floribertus Philippus Martinus Jansen , Ricardo Avila , Dinko Eduardo Trotter , Ravindra Manjeshwar , James Miller , Thomas Sebastian
IPC分类号： G01T1/164
CPC分类号： G01T1/2985 , A61B6/037 , G01T1/1611 , G01T1/1615
摘要： Methods and systems for imaging a patient are provided. The method includes determining a location of a volume of interest within the patient and acquiring a plurality of frames of emission data, at least one frame including the volume of interest. The method further includes determining a time-of-flight (TOF) information of at least a portion of the annihilations detected along a line of response between corresponding coincidence detectors and generating an image of the patient from the emission data using the determined TOF information.

18. 发明申请

US20050004452A1 Systems and methods for analyzing an abnormality of an object 有权
标题翻译：用于分析物体异常的系统和方法
公开(公告)号：US20050004452A1
公开(公告)日：2005-01-06
申请号：US10611296
申请日：2003-07-01
申请人： Sarah Hertel , Stanley Fox , Alexander Ganin , Charles Stearns
发明人： Sarah Hertel , Stanley Fox , Alexander Ganin , Charles Stearns
IPC分类号： G01T1/161 , A61B6/03 , G06T1/00 , G06T7/00 , A61B5/05
CPC分类号： G06T7/0012 , A61B6/032 , A61B6/037 , A61B6/5235 , G06T7/30
摘要： In one embodiment, a method for analyzing at least one abnormality of an object is described. The method includes obtaining a first image containing an abnormality using a first modality, obtaining a second image containing the abnormality using-a second modality, selecting a first region of interest located within the first image, determining an anatomical size of the abnormality based on the first region of interest in the first image, and determining a relative metabolic activity based on a second region of interest within the second image.
摘要翻译：在一个实施例中，描述了用于分析对象的至少一个异常的方法。该方法包括使用第一模式获得包含异常的第一图像，使用第二模式获得包含异常的第二图像，选择位于第一图像内的第一感兴趣区域，基于该方法确定异常的解剖尺寸第一图像中的第一感兴趣区域，以及基于第二图像内的第二感兴趣区域确定相对代谢活动。

19. 发明授权

US4573122A Method of and means for compensating for the dead time of a gamma camera 失效
标题翻译：补偿伽马相机死区时间的方法和装置
公开(公告)号：US4573122A
公开(公告)日：1986-02-25
申请号：US439221
申请日：1982-11-04
申请人： Dan Inbar , Alexander Ganin
发明人： Dan Inbar , Alexander Ganin
IPC分类号： G01T1/164 , G01T1/17 , G01T1/20
CPC分类号： G01T1/171 , G01T1/1642 , A61B6/4258 , Y10S128/922
摘要： A method for using a gamma camera having a head including an array of photodetectors that produces a group of input pulses in response to an actual interaction of a radiation stimulus with the camera head, includes the step of repetitiously generating groups of synthetic pulses that resemble groups of input pulses and simulate the occurrence of synthetic interactions of stimuli with the head. These groups of synthetic and input pulses are applied to processing circuitry that produces groups of processed pulses. The coordinates of both actual and synthetic interactions based on said processed pulses are computed; and a representation of the spatial locations of both actual and synthetic interactions based on the computed coordinates is stored.The method also includes determining whether a group of processed pulses is the result of a group of input pulses or a group of synthetic pulses, and a correction factor is computed based on the number of groups of processed synthetic pulses relative to the number of groups of generated synthetic pulses. The representation of the spatial locations of the interactions is corrected in accordance with said correction factor.
摘要翻译：一种使用具有包括响应于辐射刺激与相机头的实际相互作用产生一组输入脉冲的光电检测器阵列的伽马照相机的伽马照相机的方法包括重复产生类似于组的合成脉冲组的步骤的输入脉冲，并模拟刺激与头部的合成相互作用的发生。这些合成和输入脉冲组被施加到产生处理脉冲组的处理电路。计算基于所述处理的脉冲的实际和合成交互的坐标; 并且存储基于所计算的坐标的实际和合成交互的空间位置的表示。该方法还包括确定一组经处理的脉冲是一组输入脉冲还是一组合成脉冲的结果，并且基于经处理的合成脉冲的组数相对于组的数量来计算校正因子产生合成脉冲。根据所述校正因子校正交互的空间位置的表示。

20. 发明授权

US4369495A Method of and means for compensating for the dead time of a gamma camera 失效
标题翻译：补偿伽马相机死区时间的方法和装置
公开(公告)号：US4369495A
公开(公告)日：1983-01-18
申请号：US160942
申请日：1980-06-19
申请人： Dan Inbar , Alexander Ganin
发明人： Dan Inbar , Alexander Ganin
IPC分类号： G01T1/164 , G01T1/17 , G01T1/20
CPC分类号： G01T1/1642 , G01T1/171 , Y10S128/922
摘要： The dead time of a nuclear imaging system is compensated for when recording a representation of a dynamically changing radiation field into an image memory by injecting into the system synthetic pulses which resemble, in terms of amplitude and shape, the pulses produced by the system in response to interaction with stimuli from the radiation field, and by determining the percentage of synthetic pulses which are processed by the system. A correction factor based on such percentage is applied to the representation of the field. The synthetic pulses are injected into the system at a predetermined rate with respect to the rate of pulses processed by the system in response to interactions with stimuli from the radiation field. This predetermined rate is functionally related to the rate at which input signals are processed by the system. The synthetic signals are injected in such a way that relatively low correlation exists between the pulses produced by interactions of stimuli from the radiation field and the synthetic pulses.
摘要翻译：当通过向系统中注入动态变化的辐射场的表示来注入到系统中的类似于系统响应的脉冲的振幅和形状的合成脉冲时，补偿了核成像系统的死区时间与来自辐射场的刺激相互作用，以及通过确定由系统处理的合成脉冲的百分比。基于这种百分比的校正因子被应用于该领域的表示。合成脉冲相对于由系统响应于与辐射场的刺激的相互作用而处理的脉冲速率以预定速率被注入到系统中。该预定速率在功能上与由系统处理输入信号的速率有关。合成信号以这样的方式被注入，即在由辐射场的刺激和合成脉冲的相互作用产生的脉冲之间存在相对低的相关性。

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