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公开(公告)号：US20100002921A1
公开(公告)日：2010-01-07
申请号：US12498535
申请日：2009-07-07
IPC分类号： G06K9/00
CPC分类号： A61B5/055 , G01R33/54 , G01R33/543 , G06F19/00 , G06F19/321 , G06T7/0012 , G06T7/11 , G06T7/143 , G06T7/149 , G06T7/32 , G06T7/35 , G06T2207/10088 , G06T2207/20081 , G06T2207/20128 , G06T2207/30004 , G16H40/63
摘要： In a medical image acquisition device, and a method for operating such a device, before acquiring a current planning image data set from a subject, a statistical atlas is generated that is a statistical compilation concerning at least one part of the human body, the statistical compilation including an average image data set electronically associated, in the statistical atlas, with association information that identifies anatomy of the human body represented by the statistical compilation. The statistical atlas is compiled from multiple planning image data sets acquired using a specific measurement protocol. After the current planning image data set is acquired, the stored average image data set is transformed into the current planning image data set, so that the association information associated with the average image data set are accurately also associated with the current planning image data set. A diagnostic image acquisition of the subject is then controlled using the association information that is now associated with the current planning image data set.
摘要翻译： 在医疗图像采集装置中，以及用于操作这种装置的方法，在从对象获取当前的规划图像数据集之前，生成统计图谱，其是关于人体的至少一部分的统计汇编，统计 编辑包括在统计图中以电子方式相关联的平均图像数据集，其具有标识由统计汇编表示的人体的解剖结构的关联信息。 统计图集是从使用特定测量协议获取的多个规划图像数据集编译出来的。 在获取当前规划图像数据集之后，将所存储的平均图像数据集变换为当前规划图像数据集，使得与平均图像数据集相关联的关联信息也准确地与当前规划图像数据集相关联。 然后使用现在与当前规划图像数据集相关联的关联信息来控制对象的诊断图像采集。
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32.发明申请METHOD FOR CONTROLLING AN IMAGE DATA ACQUISITION AND/OR EVALUATION PROCEDURE IN MEDICAL EXAMINATIONS 有权用于控制医学检查中的图像数据获取和/或评估程序的方法公开(公告)号：US20090202121A1
公开(公告)日：2009-08-13
申请号：US12366765
申请日：2009-02-06
IPC分类号： G06K9/00
CPC分类号： G06K9/20 , A61B5/055 , G06K2209/051 , G06T7/12 , G06T7/143 , G06T2207/10088 , G06T2207/20081 , G06T2207/30004
摘要： In a method to control the acquisition and/or evaluation procedure of image data in medical examinations, in a previously acquired planning image data set entirely or partially covering a target volume, spatial information of the target volume is determined automatically using a statistical model of the target volume based on data about real anatomy. The acquisition and/or evaluation operation is controlled using the spatial information. A statistical model of at least one greyscale value distribution in the region of the surface of the target volume is used to calculate the location information.
摘要翻译： 在用于控制医学检查中的图像数据的获取和/或评估过程的方法中，在完全或部分覆盖目标体积的先前获取的计划图像数据集中，使用统计模型自动确定目标体积的空间信息， 基于有关真实解剖学数据的目标体积。 使用空间信息来控制采集和/或评估操作。 使用目标体积表面区域中至少一个灰度值分布的统计模型来计算位置信息。
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33.发明申请Method for interactively segmenting structures in image data records and image processing unit for carrying out the method 有权用于交互地分割图像数据记录中的结构的方法和用于执行该方法的图像处理单元公开(公告)号：US20080317351A1
公开(公告)日：2008-12-25
申请号：US12213328
申请日：2008-06-18
IPC分类号： G06K9/46
CPC分类号： G06T7/174 , G06T7/11 , G06T7/12 , G06T2207/20092
摘要： In the method according to at least one embodiment of the invention, an image data record having a structure to be segmented is first of all displayed by display equipment. Using an input apparatus, a segmentation algorithm to be used is selected from a group of different segmentation algorithms, including a contour-based segmentation algorithm, a region-based segmentation algorithm and manual segmentation, based on the local image contrast in a region to be segmented in the image data record. A region to be segmented in the image data record is marked, and the structure to be segmented in the marked region is segmented using the selected segmentation algorithm, and a segmentation result of the segmentation is displayed. This procedure (selecting a segmentation algorithm/marking a region/segmenting the region/displaying) is repeated until the structure to be segmented is completely segmented in the displayed image data record and a boundary line of the structure is produced as the final segmentation result. Lastly, the final segmentation result is saved and/or displayed. Furthermore, an image processing unit is disclosed for carrying out the method of at least one embodiment.
摘要翻译： 在根据本发明的至少一个实施例的方法中，具有待分割结构的图像数据记录首先由显示设备显示。 使用输入装置，从一组不同的分割算法中选择要使用的分割算法，包括基于轮廓的分割算法，基于区域的分割算法和手动分割，基于区域中的局部图像对比度 在图像数据记录中分段。 标记图像数据记录中要分割的区域，并使用所选择的分割算法对标记区域中要分割的结构进行分割，并显示分割的分割结果。 重复该过程（选择分割算法/标记区域/分割区域/显示），直到待分割的结构在显示的图像数据记录中被完全分割，并且生成结构的边界线作为最终分割结果。 最后，最终的分割结果被保存和/或显示。 此外，公开了一种用于执行至少一个实施例的方法的图像处理单元。
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34.发明申请Method for segmenting structures in image data records and image processing unit for carrying out the method 失效用于分割图像数据记录中的结构的方法和用于执行该方法的图像处理单元公开(公告)号：US20080317342A1
公开(公告)日：2008-12-25
申请号：US12213322
申请日：2008-06-18
IPC分类号： G06K9/34
CPC分类号： G06T7/174 , G06T7/11 , G06T7/12 , G06T2200/24 , G06T2207/10072 , G06T2207/20096 , G06T2207/20104 , G06T2207/30004
摘要： In the method according to at least one embodiment of the invention, a first segmentation of a structure in an image data record is firstly carried out, and a first final segmentation result is obtained therefrom. A region in the image data record is selected based on the first final segmentation result obtained. A first band is placed at a first, outwardly pointing distance from the selected region. This first band characterizes a background region. A second band is placed at a second, inwardly pointing distance from the projected first final segmentation result of the first segmentation. This second band characterizes a structure region. A further segmentation is carried out based on the characterized background region and the characterized structure region, and the final segmentation result of the further segmentation is saved and/or displayed. Furthermore, an image processing unit for carrying out the method is disclosed.
摘要翻译： 在根据本发明的至少一个实施例的方法中，首先执行图像数据记录中的结构的第一分割，并从其获得第一最终分割结果。 基于所获得的第一最终分割结果来选择图像数据记录中的区域。 第一条带放置在距选定区域的第一个向外指向的距离处。 这个第一个乐队描绘了一个背景区域。 第二条带放置在距离第一分割的投影的第一最终分割结果的第二，向内指向的距离处。 第二个频带表征了一个结构区域。 基于特征化背景区域和特征化结构区域进行进一步分割，并且保存和/或显示进一步分割的最终分割结果。 此外，公开了一种用于执行该方法的图像处理单元。
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公开(公告)号：US10564244B2
公开(公告)日：2020-02-18
申请号：US15367358
申请日：2016-12-02
申请人： Matthias Fenchel , Peter Speier
发明人： Matthias Fenchel , Peter Speier
IPC分类号： G01R33/567
摘要： A method is provided for ascertaining at least one item of movement information describing a sought movement as a partial movement of an overall movement in an at least partially moved examination region. In the method, at least one excitation signal having a first frequency band is output and receiving signals generated by the excitation signal are recorded with a receiving coil arrangement, (e.g., a receiving coil arrangement of a magnetic resonance device), having a plurality of receiving channels. The coils of the receiving coil arrangement are designed to record a receiving frequency band including the first frequency band, wherein for ascertaining the movement information the complex receiving signals of the receiving channels are combined at one instant according to a combination specification ascertained over a period by an analysis of the receiving signals that identifies at least one component of a movement that contributes to the sought movement.
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36.发明授权Method for performing combined magnetic resonance/positron emission tomography 有权执行组合磁共振/正电子发射断层扫描的方法公开(公告)号：US09445722B2
公开(公告)日：2016-09-20
申请号：US13792502
申请日：2013-03-11
CPC分类号： A61B5/0035 , A61B5/055 , A61B6/037 , A61B6/4417 , A61B6/5247 , G01R33/481 , G01R33/56563 , G01R33/56572
摘要： A method is disclosed for performing a combined magnetic resonance/positron emission tomography scan of an examination object in an MR/PET system. An embodiment of the method entails acquiring first magnetic resonance data using a first readout gradient field. The first readout gradient field is chosen such that, at a location of the field of view of the magnetic resonance system, a distortion caused by a nonlinearity of the first readout gradient field and a distortion caused by a B0 field inhomogeneity substantially cancel each other out. First magnetic resonance images for planning the combined magnetic resonance/positron emission tomography session and determining an attenuation correction map for a positron emission tomography scan are determined on the basis of the first magnetic resonance data. Positron emission data and second magnetic resonance data are acquired using a second readout gradient field.
摘要翻译： 公开了一种用于对MR / PET系统中的检查对象进行组合磁共振/正电子发射断层扫描的方法。 该方法的实施例需要使用第一读出梯度场获取第一磁共振数据。 选择第一读出梯度场，使得在磁共振系统的视场的位置处，由第一读出梯度场的非线性引起的失真和由B0场不均匀性引起的失真基本上彼此抵消 。 基于第一磁共振数据确定用于规划组合磁共振/正电子发射断层摄影会话的第一磁共振图像和确定正电子发射断层摄影扫描的衰减校正图。 使用第二读出梯度场获取正电子发射数据和第二磁共振数据。
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公开(公告)号：US09400317B2
公开(公告)日：2016-07-26
申请号：US14091372
申请日：2013-11-27
CPC分类号： G01R33/481 , A61B5/0035 , A61B5/0037 , A61B5/055 , A61B6/037 , A61B6/4417 , A61B6/5247 , A61B6/5258 , A61B2576/00 , G06T5/008 , G06T5/50 , G06T2207/10088 , G06T2207/10104
摘要： A method of attenuation correction for a positron emission tomography (PET) system includes obtaining PET scan data representative of a volume scanned by the PET system, obtaining a plurality of magnetic resonance (MR) scan data sets representative of the volume, each MR scan data set being acquired in a respective time period during acquisition of the PET scan data by the PET system, detecting motion of the volume that occurred during the acquisition of the PET scan data based on an assessment of the plurality of MR scan data sets, the PET scan data, or the plurality of MR scan data sets and the PET scan data, determining attenuation correction data from the plurality of MR scan data sets based on the detected motion for alignment of the attenuation correction data and the PET scan data, and correcting the PET scan data with the attenuation correction data.
摘要翻译： 用于正电子发射断层摄影（PET）系统的衰减校正方法包括获得代表由PET系统扫描的体积的PET扫描数据，获得表示体积的多个磁共振（MR）扫描数据集，每个MR扫描数据 通过PET系统在PET扫描数据的采集期间在各自的时间段中进行采集，基于多个MR扫描数据集的评估来检测在PET扫描数据的采集期间发生的体积的运动，PET 扫描数据或多个MR扫描数据组和PET扫描数据，基于检测到的用于对准衰减校正数据和PET扫描数据的运动来确定来自多个MR扫描数据组的衰减校正数据，并校正 PET扫描数据与衰减校正数据。
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38.发明授权Method of attenuation correction of positron emission tomography data and combined positron emission tomography and magnetic resonance tomography system 有权正电子发射断层扫描数据和组合正电子发射断层扫描和磁共振断层扫描系统的衰减校正方法公开(公告)号：US09392958B2
公开(公告)日：2016-07-19
申请号：US13483454
申请日：2012-05-30
申请人： Matthias Fenchel , Kirstin Jattke , Jun Bao , Alto Stemmer , William Curtis Howe
发明人： Matthias Fenchel , Kirstin Jattke , Jun Bao , Alto Stemmer , William Curtis Howe
CPC分类号： A61B5/055 , A61B5/0035 , A61B5/7285 , A61B6/037 , A61B6/4417 , A61B6/5205 , A61B6/5247 , A61B6/5258 , A61B6/5264 , A61B6/527 , A61B6/5288 , A61B6/548 , G01R33/481
摘要： Various embodiments relate to a method of attenuation correction of Positron Emission Tomography (PET) data based on Magnetic Resonance Tomography (MRT) data. A method of at least one embodiment further includes determining further data being indicative of an iterative cycle of a physiological observable of a patient and matching the PET data with the MRT data based on the further data.
摘要翻译： 各种实施方案涉及基于磁共振层析成像（MRT）数据的正电子发射断层扫描（PET）数据的衰减校正方法。 至少一个实施例的方法还包括确定指示患者的生理可观察的迭代循环的另外的数据，并且基于进一步的数据将PET数据与MRT数据进行匹配。
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公开(公告)号：US08896307B2
公开(公告)日：2014-11-25
申请号：US13422434
申请日：2012-03-16
IPC分类号： G01R33/44 , G01R33/565 , G01R33/48
CPC分类号： G01R33/481 , G01R33/56563 , G01R33/56572
摘要： According to an embodiment of a method, a first readout gradient field is determined in such a way that a distortion caused by a non-linearity of the first readout gradient field and a distortion caused by a B0 field inhomogeneity are essentially cancelled at a first location of a field of view of the magnetic resonance facility. Moreover, a second readout gradient field is determined in such a way that a distortion caused by a non-linearity of the second readout gradient field and a distortion caused by a B0 field inhomogeneity are essentially cancelled at a different second location of the field of view. Finally, a multiecho sequence is performed, wherein first magnetic resonance data is captured using the first readout gradient field after a 180° pulse and second magnetic resonance data is captured using the second readout gradient field after a further 180° pulse.
摘要翻译： 根据方法的实施例，第一读出梯度场被确定为使得由第一读出梯度场的非线性引起的失真和由B0场不均匀性引起的失真在第一位置处被基本上消除 的磁共振设备的视场。 此外，以这样的方式确定第二读出梯度场，使得由第二读出梯度场的非线性引起的失真和由B0场不均匀性引起的失真在视场的不同的第二位置基本上消除 。 最后，执行多电路序列，其中在180°脉冲之后使用第一读出梯度场捕获第一磁共振数据，并且在进一步180°脉冲之后使用第二读出梯度场捕获第二磁共振数据。
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公开(公告)号：US08848997B2
公开(公告)日：2014-09-30
申请号：US12498535
申请日：2009-07-07
CPC分类号： A61B5/055 , G01R33/54 , G01R33/543 , G06F19/00 , G06F19/321 , G06T7/0012 , G06T7/11 , G06T7/143 , G06T7/149 , G06T7/32 , G06T7/35 , G06T2207/10088 , G06T2207/20081 , G06T2207/20128 , G06T2207/30004 , G16H40/63
摘要： In a medical image acquisition, and operating method, before acquiring a current planning image data set from a subject, a statistical atlas is generated from multiple planning image data sets using a specific measurement protocol, as a statistical compilation including an average image data set electronically associated with association information that identifies different anatomical entities represented by the statistical compilation. After the current planning image data set is acquired, the stored average image data set is transformed into the current planning image data set, with the association information being accurately associated with the current planning image data set. A diagnostic image acquisition of the subject is then controlled using the association information that is now associated with the current planning image data set.
摘要翻译： 在医学图像采集和操作方法中，在从对象获取当前规划图像数据集之前，使用特定测量协议从多个规划图像数据集生成统计图谱，作为包括电子平均图像数据集的统计汇编 与识别由统计汇编表示的不同解剖实体的关联信息相关联。 在获取当前规划图像数据集之后，将存储的平均图像数据集变换为当前规划图像数据集，其中关联信息与当前规划图像数据集精确地相关联。 然后使用现在与当前规划图像数据集相关联的关联信息来控制对象的诊断图像采集。
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