公开(公告)号：US20070040122A1

公开(公告)日：2007-02-22

申请号：US11205067

申请日：2005-08-17

申请人： Ravindra Manjeshwar ,  Floribertus Heukensfeldt Jansen ,  Charles Stearns

发明人： Ravindra Manjeshwar ,  Floribertus Heukensfeldt Jansen ,  Charles Stearns

IPC分类号： G01T1/164

CPC分类号： G01T1/2985

摘要： The invention is directed to a technique for reconstructing PET scan images. According to one embodiment, the invention relates to a method for reconstructing PET scan images. The method comprises: detecting a plurality of coincidence events in a PET scanner; storing data associated with the plurality of coincidence events in a chronological list based on a detection time for each of the plurality of coincidence events; generating correction data based on scatter coincidence events and random coincidence events in the plurality of coincidence events; and reconstructing one or more PET scan images based at least in part on the chronological list of data and the correction data.

摘要翻译： 本发明涉及一种重建PET扫描图像的技术。 根据一个实施例，本发明涉及一种重建PET扫描图像的方法。 该方法包括：在PET扫描器中检测多个符合事件; 基于多个重合事件中的每一个的检测时间，将与所述多个重合事件相关联的数据存储在时序列表中; 基于所述多个重合事件中的分散符合事件和随机符合事件生成校正数据; 以及至少部分地基于时间顺序的数据列表和校正数据重建一个或多个PET扫描图像。

公开(公告)号：US20060261275A1

公开(公告)日：2006-11-23

申请号：US11131149

申请日：2005-05-17

申请人： Charles Stearns ,  Ravindra Manjeshwar ,  Floribertus Philippus Heukensfeldt Jansen

发明人： Charles Stearns ,  Ravindra Manjeshwar ,  Floribertus Philippus Heukensfeldt Jansen

IPC分类号： G01T1/164

CPC分类号： G01T1/2985

摘要： A method and system for reconstructing an image in a time-of-flight (TOF) positron emission tomography (PET) system is provided. The method includes using a reconstructed image to determine predicted timing information. Timing bias data is updated based on received timing information associated with acquired scan data from a PET system and the predicted timing information. The method further includes reconstructing the image, based on the updated timing bias data.

摘要翻译： 提供了一种用于在飞行时间（TOF）正电子发射断层摄影（PET）系统中重建图像的方法和系统。 该方法包括使用重构图像来确定预测的定时信息。 基于与来自PET系统的获取的扫描数据相关联的接收定时信息和预测的定时信息来更新定时偏差数据。 该方法还包括基于更新的定时偏差数据重建图像。

公开(公告)号：US20060138315A1

公开(公告)日：2006-06-29

申请号：US11025233

申请日：2004-12-29

申请人： John Williams ,  Alexander Ganin ,  Charles Stearns ,  Yiping Shao ,  Floribertus Philippus Martinus Jansen ,  Ravindra Manjeshwar

发明人： John Williams ,  Alexander Ganin ,  Charles Stearns ,  Yiping Shao ,  Floribertus Philippus Martinus Jansen ,  Ravindra Manjeshwar

IPC分类号： G01T1/164

CPC分类号： G01T1/2985

摘要： Methods and systems for calibrating a positron emission tomography (PET) system are provided. The method includes determining at least one non-acquisition time period for the PET system. The method further includes automatically acquiring calibration data during the at least one non-acquisition time period.

摘要翻译： 提供了用于校正正电子发射断层摄影（PET）系统的方法和系统。 该方法包括确定PET系统的至少一个非获取时间段。 所述方法还包括在所述至少一个非采集时段期间自动获取校准数据。

公开(公告)号：US20060081784A1

公开(公告)日：2006-04-20

申请号：US10969716

申请日：2004-10-20

申请人： Steven Ross ,  Charles Stearns ,  Ravindra Manjeshwar

发明人： Steven Ross ,  Charles Stearns ,  Ravindra Manjeshwar

IPC分类号： G01T1/164

CPC分类号： G06T11/006 ,  G06T2211/424

摘要： Methods and systems for image overlap correction are provided. The method includes acquiring the emission projection data from a plurality of scan frames that extend across at least a portion of a length of an object being imaged wherein elements of the object lie between a region of overlap between two successive frames. The method further includes iteratively reconstructing a 3D image volume from multi-frame emission projection data by updating an estimate of 3D image volume using emission projection data from the plurality of frames within an iterative reconstruction loop.

摘要翻译： 提供了图像重叠校正的方法和系统。 该方法包括从多个扫描帧中获取发射投影数据，所述多个扫描帧延伸穿过被成像物体的长度的至少一部分，其中物体的元件位于两个连续帧之间的重叠区域之间。 该方法还包括通过使用来自迭代重建循环内的多个帧的发射投影数据更新3D图像体积的估计来从多帧发射投影数据中迭代重建3D图像体积。

公开(公告)号：US20060102846A1

公开(公告)日：2006-05-18

申请号：US10988878

申请日：2004-11-15

申请人： Ravindra Manjeshwar ,  Charles Stearns

发明人： Ravindra Manjeshwar ,  Charles Stearns

IPC分类号： G01T1/164

CPC分类号： G06T11/005

摘要： Methods and systems for imaging by using a filter for Time-Of-Flight Positron Emission Tomography (TOF PET) are described. The described methods of imaging a patient by using a positron emission tomography (PET) system includes acquiring a plurality of frames of sinogram data, filtering the acquired sinogram data and back-projecting the filtered sinogram data to form an output image of the patient. The acquired sinogram data defines a line of response (LOR) and a time-of-flight (TOF) measurement that localizes positron annihilation within the patient. The filtering of the acquired sinogram data is performed using the TOF measurement.

摘要翻译： 描述了使用飞行时间正电子发射断层扫描（TOF PET）的滤波器进行成像的方法和系统。 所描述的通过使用正电子发射断层摄影（PET）系统对患者进行成像的方法包括获取正弦图数据的多个帧，对所获取的正弦图数据进行滤波，以及反投影过滤的正弦图数据以形成患者的输出图像。 获得的正中图数据定义了定位在患者体内的正电子湮灭的响应线（LOR）和飞行时间（TOF）测量。 使用TOF测量来执行所获取的正弦图数据的滤波。

公开(公告)号：US20060163485A1

公开(公告)日：2006-07-27

申请号：US11040088

申请日：2005-01-21

申请人： Charles Stearns ,  Ravindra Manjeshwar

发明人： Charles Stearns ,  Ravindra Manjeshwar

IPC分类号： G01T1/164

CPC分类号： G01T1/2985

摘要： A method and system for controlling a positron emission tomography (PET) system is disclosed. The method includes acquiring image data and time-of-flight information from a PET system during an imaging scan. Further, the method includes performing scatter correction on the image data using the time-of-flight information.

摘要翻译： 公开了一种用于控制正电子发射断层摄影（PET）系统的方法和系统。 该方法包括在成像扫描期间从PET系统获取图像数据和飞行时间信息。 此外，该方法包括使用飞行时间信息对图像数据执行散射校正。

公开(公告)号：US20060151705A1

公开(公告)日：2006-07-13

申请号：US11034166

申请日：2005-01-12

申请人： Ravindra Manjeshwar ,  Floribertus Philippus Martinus Jansen ,  Charles Stearns

发明人： Ravindra Manjeshwar ,  Floribertus Philippus Martinus Jansen ,  Charles Stearns

IPC分类号： G01T1/164

CPC分类号： G01T1/2985 ,  A61B6/037

摘要： Methods and systems for providing scatter correction in a positron emission tomography (PET) system are provided. The method includes determining a look-up table of scatter sinograms during a PET acquisition scan period. The method further includes scatter correcting acquired scan data obtained during the PET acquisition scan period.

摘要翻译： 提供了在正电子发射断层摄影（PET）系统中提供散射校正的方法和系统。 该方法包括在PET采集扫描周期期间确定散射正弦图的查找表。 该方法还包括在PET采集扫描周期期间获得的获取的扫描数据的散射校正。

公开(公告)号：US20060145082A1

公开(公告)日：2006-07-06

申请号：US11026236

申请日：2004-12-30

申请人： Charles Stearns ,  David McDaniel ,  John Williams ,  Alexander Ganin ,  Ravindra Manjeshwar ,  Floribertus Philippus Heukensfeldt Jansen ,  Yiping Shao

发明人： Charles Stearns ,  David McDaniel ,  John Williams ,  Alexander Ganin ,  Ravindra Manjeshwar ,  Floribertus Philippus Heukensfeldt Jansen ,  Yiping Shao

IPC分类号： G01T1/164

CPC分类号： G01T1/2985

摘要： Methods and systems for controlling a positron emission tomography (PET) system are provided. The method includes receiving timing information from a PET system during an imaging scan using the PET system. The method further includes processing the received timing information and timing bias information relating to the PET system to control the PET system.

摘要翻译： 提供了用于控制正电子发射断层摄影（PET）系统的方法和系统。 该方法包括在使用PET系统的成像扫描期间从PET系统接收定时信息。 该方法还包括处理接收到的定时信息和与PET系统有关的定时偏差信息以控制PET系统。

公开(公告)号：US20130256559A1

公开(公告)日：2013-10-03

申请号：US13435792

申请日：2012-03-30

申请人： Scott David Wollenweber ,  Bruce Collick ,  Anton Linz ,  Charles Stearns ,  William Peterson ,  Laura Armstrong

发明人： Scott David Wollenweber ,  Bruce Collick ,  Anton Linz ,  Charles Stearns ,  William Peterson ,  Laura Armstrong

IPC分类号： G01N21/00

CPC分类号： G01T1/169 ,  G01R33/481

摘要： A target object for aligning a multi-modality imaging system includes a body having a cavity therein, a first imaging source being disposed within the cavity, the first imaging source including a body having a cavity defined therein and an emission responsive material disposed within the first imaging source cavity, the first imaging source having a first shape, and a second imaging source being disposed within the cavity, the second imaging source including a body having a cavity defined therein and a magnetic resonance responsive material disposed within the second imaging source cavity, the second imaging source having a second shape that is different than the first shape. A method of aligning a multi-modality imaging system is also provided.

摘要翻译： 用于对准多模态成像系统的目标物体包括其中具有空腔的主体，第一成像源设置在空腔内，第一成像源包括具有限定在其中的空腔的主体和设置在第一 成像源腔，第一成像源具有第一形状，第二成像源设置在空腔内，第二成像源包括具有限定在其中的空腔的主体和设置在第二成像源腔内的磁共振响应材料， 所述第二成像源具有与所述第一形状不同的第二形状。 还提供了一种对准多模态成像系统的方法。

公开(公告)号：US08969829B2

公开(公告)日：2015-03-03

申请号：US13435792

申请日：2012-03-30

申请人： Scott David Wollenweber ,  Bruce Collick ,  Anton Linz ,  Charles Stearns ,  William Peterson ,  Laura Armstrong

发明人： Scott David Wollenweber ,  Bruce Collick ,  Anton Linz ,  Charles Stearns ,  William Peterson ,  Laura Armstrong

IPC分类号： G01N21/00

CPC分类号： G01T1/169 ,  G01R33/481

摘要： A target object for aligning a multi-modality imaging system includes a body having a cavity therein, a first imaging source being disposed within the cavity, the first imaging source including a body having a cavity defined therein and an emission responsive material disposed within the first imaging source cavity, the first imaging source having a first shape, and a second imaging source being disposed within the cavity, the second imaging source including a body having a cavity defined therein and a magnetic resonance responsive material disposed within the second imaging source cavity, the second imaging source having a second shape that is different than the first shape. A method of aligning a multi-modality imaging system is also provided.

摘要翻译： 用于对准多模态成像系统的目标物体包括其中具有空腔的主体，第一成像源设置在空腔内，第一成像源包括具有限定在其中的空腔的主体和设置在第一 成像源腔，第一成像源具有第一形状，第二成像源设置在空腔内，第二成像源包括具有限定在其中的空腔的主体和设置在第二成像源腔内的磁共振响应材料， 所述第二成像源具有与所述第一形状不同的第二形状。 还提供了一种对准多模态成像系统的方法。