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1. 发明授权

US10290122B2 Multi-spectral CT imaging 有权
公开(公告)号：US10290122B2
公开(公告)日：2019-05-14
申请号：US15092784
申请日：2016-04-07
申请人： Thomas Allmendinger , Rainer Raupach , Bernhard Schmidt , Harald Schöndube
发明人： Thomas Allmendinger , Rainer Raupach , Bernhard Schmidt , Harald Schöndube
IPC分类号： G06T1/00 , G06T11/00
摘要： A multi-spectral CT imaging method, preferably a CT imaging method, is described. Spectrally resolved projection scan data is acquired from a region to be imaged of an examination object. The data is assigned to a plurality of pre-determined different partial spectra. Spectrally resolved image data is reconstructed with a plurality of attenuation values for each image point of the region to be imaged. The attenuation values are each assigned to one of the pre-determined different partial spectra. Furthermore, an extremal attenuation value is determined for each image point on the basis of the plurality of attenuation values. A representative image data set is determined such that the determined extremal attenuation value is assigned to each image point.

2. 发明申请

US20160307340A1 MULTISPECTRAL CT IMAGING 审中-公开
标题翻译：多重CT成像
公开(公告)号：US20160307340A1
公开(公告)日：2016-10-20
申请号：US15092784
申请日：2016-04-07
申请人： Thomas Allmendinger , Rainer Raupach , Bernhard Schmidt , Harald Schöndube
发明人： Thomas Allmendinger , Rainer Raupach , Bernhard Schmidt , Harald Schöndube
IPC分类号： G06T11/00
CPC分类号： G06T11/008 , G06T2211/408
摘要： A multi-spectral CT imaging method, preferably a CT imaging method, is described. Spectrally resolved projection scan data is acquired from a region to be imaged of an examination object. The data is assigned to a plurality of pre-determined different partial spectra. Spectrally resolved image data is reconstructed with a plurality of attenuation values for each image point of the region to be imaged. The attenuation values are each assigned to one of the pre-determined different partial spectra. Furthermore, an extremal attenuation value is determined for each image point on the basis of the plurality of attenuation values. A representative image data set is determined such that the determined extremal attenuation value is assigned to each image point.
摘要翻译：描述了多光谱CT成像方法，优选CT成像方法。从检查对象的要成像的区域获取光谱分辨的投影扫描数据。将数据分配给多个预定的不同部分光谱。用要成像的区域的每个图像点的多个衰减值来重构光谱分辨的图像数据。衰减值分别被分配给预定的不同部分光谱之一。此外，基于多个衰减值，针对每个图像点确定极值衰减值。确定代表性图像数据集，使得确定的极值衰减值被分配给每个图像点。

3. 发明申请

US20110317901A1 Temporal Resolution In Cardio CT 有权
标题翻译：心脏CT时间分辨率
公开(公告)号：US20110317901A1
公开(公告)日：2011-12-29
申请号：US13164796
申请日：2011-06-21
申请人： Thomas Allmendinger , Herbert Bruder , Thomas Flohr , Rainer Raupach , Harald SchÖndube , Karl Stierstorfer
发明人： Thomas Allmendinger , Herbert Bruder , Thomas Flohr , Rainer Raupach , Harald SchÖndube , Karl Stierstorfer
IPC分类号： G06K9/00
CPC分类号： A61B6/032 , A61B6/4441 , A61B6/481 , A61B6/486 , A61B6/503 , A61B6/507 , A61B6/5211 , A61B6/5264 , A61B6/5288 , A61B2090/3762 , G06T5/002 , G06T5/50 , G06T11/006 , G06T2207/10081 , G06T2207/20221 , G06T2207/30048 , G06T2211/412 , G06T2211/436
摘要： A method is disclosed for the reconstruction of picture data of a moving object under examination from measurement, with the measurement data having been recorded beforehand for a relative rotational movement between a radiation source of a computed tomography system and the object under examination. In at least one embodiment, first picture data is computed from a complete measurement dataset of the measurement data for a picture reconstruction, and second picture data is computed from an incomplete measurement dataset for a computed tomography picture reconstruction. The first picture data and the second picture data are combined into third picture data, with the combination being computed using location-dependent movement information of the object under examination.
摘要翻译：公开了一种用于重建从测量中检查的移动物体的图像数据的方法，其中测量数据已被预先记录在计算机断层摄影系统的辐射源和被检查物体之间的相对旋转运动。在至少一个实施例中，从用于图像重建的测量数据的完整测量数据集计算第一图像数据，并且从用于计算机断层摄影图像重建的不完整测量数据集计算第二图像数据。将第一图像数据和第二图像数据组合成第三图像数据，使用正在检查的对象的位置相关运动信息来计算组合。

4. 发明授权

US08553962B2 Temporal resolution in cardio CT 有权
标题翻译：心脏CT时间分辨率
公开(公告)号：US08553962B2
公开(公告)日：2013-10-08
申请号：US13164796
申请日：2011-06-21
申请人： Thomas Allmendinger , Herbert Bruder , Thomas Flohr , Rainer Raupach , Harald Schöndube , Karl Stierstorfer
发明人： Thomas Allmendinger , Herbert Bruder , Thomas Flohr , Rainer Raupach , Harald Schöndube , Karl Stierstorfer
IPC分类号： G06K9/00 , A61B6/00
CPC分类号： A61B6/032 , A61B6/4441 , A61B6/481 , A61B6/486 , A61B6/503 , A61B6/507 , A61B6/5211 , A61B6/5264 , A61B6/5288 , A61B2090/3762 , G06T5/002 , G06T5/50 , G06T11/006 , G06T2207/10081 , G06T2207/20221 , G06T2207/30048 , G06T2211/412 , G06T2211/436
摘要： A method is disclosed for the reconstruction of picture data of a moving object under examination from measurement, with the measurement data having been recorded beforehand for a relative rotational movement between a radiation source of a computed tomography system and the object under examination. In at least one embodiment, first picture data is computed from a complete measurement dataset of the measurement data for a picture reconstruction, and second picture data is computed from an incomplete measurement dataset for a computed tomography picture reconstruction. The first picture data and the second picture data are combined into third picture data, with the combination being computed using location-dependent movement information of the object under examination.
摘要翻译：公开了一种用于重建从测量中检查的移动物体的图像数据的方法，其中测量数据已被预先记录在计算机断层摄影系统的辐射源和被检查物体之间的相对旋转运动。在至少一个实施例中，从用于图像重建的测量数据的完整测量数据集计算第一图像数据，并且从用于计算机断层摄影图像重建的不完整测量数据集计算第二图像数据。将第一图像数据和第二图像数据组合成第三图像数据，使用正在检查的对象的位置相关运动信息来计算组合。

5. 发明授权

US08897525B2 Multisegment picture reconstruction for cardio CT pictures 有权
标题翻译：心脏CT图像的多段图像重建
公开(公告)号：US08897525B2
公开(公告)日：2014-11-25
申请号：US13069438
申请日：2011-03-23
申请人： Thomas Allmendinger , Bernhard Schmidt
发明人： Thomas Allmendinger , Bernhard Schmidt
IPC分类号： G06K9/00 , G06T5/50 , G06T11/00 , G06T5/00 , A61B6/00
CPC分类号： A61B6/503 , A61B6/507 , A61B6/5264 , G06T5/003 , G06T5/50 , G06T11/005 , G06T2207/10081 , G06T2207/30004 , G06T2211/412
摘要： A method for reconstructing picture data of a cyclically-moving object from measurement data is disclosed, with the measurement data being detected beforehand for a relative rotational movement between a radiation source of a computed tomography system and the object under examination during a plurality of movement cycles of the object under examination. In at least one embodiment, a first picture and a second picture are determined from the measurement data, with measurement data of different movement cycles being combined for reconstruction of the second picture into a measurement dataset to be used as the basis for the picture reconstruction. Difference information is computed by comparing the first picture with the second picture. Using the difference information, a result picture is computed from the first picture and the second picture.
摘要翻译：公开了一种用于从测量数据重建循环移动物体的图像数据的方法，其中预先检测测量数据以在多个移动循环期间在计算机断层摄影系统的辐射源与被检查物体之间的相对旋转运动的被检查对象。在至少一个实施例中，从测量数据确定第一图像和第二图像，将不同移动周期的测量数据组合以将第二图像重建为要用作图像重建的基础的测量数据集。差分信息通过将第一图像与第二图像进行比较来计算。使用差分信息，从第一图像和第二图像计算结果图像。

6. 发明授权

US08279996B2 Beam hardening correction for CT perfusion measurements 有权
标题翻译： CT灌注测量的光束硬化矫正
公开(公告)号：US08279996B2
公开(公告)日：2012-10-02
申请号：US12914226
申请日：2010-10-28
申请人： Thomas Allmendinger , Marc Kachelrieβ , Bernhard Schmidt , Philip Stenner
发明人： Thomas Allmendinger , Marc Kachelrieβ , Bernhard Schmidt , Philip Stenner
IPC分类号： A61B6/00 , G06K9/00
CPC分类号： G06T11/005 , A61B6/032 , A61B6/4014 , A61B6/481 , A61B6/482 , A61B6/504 , A61B6/507 , G06T2211/424
摘要： A method is disclosed for reconstructing image data of an examination subject from measured data, wherein a series of measured data sets has previously been acquired during a relative rotational movement between a radiation source of a computed tomography system and the examination subject and the measured data sets relate to the same section of the examination subject at succeeding instants in time. In at least one embodiment, first image data is reconstructed in each case from the measured data sets such that a series of first image data is available. A change variable indicating a change over time within the series of first image data is determined, and a distinction is made between different components of the examination subject in the first image data with the aid of the change variable. This distinction is used for beam hardening correction in an iterative algorithm for calculating enhanced image data.
摘要翻译：公开了一种用于从测量数据重建检查对象的图像数据的方法，其中在计算机断层摄影系统的辐射源和检查对象之间的相对旋转运动期间已经获取了一系列测量数据集，并且测量数据集与后续时间的考试科目相同。在至少一个实施例中，第一图像数据在每种情况下从测量的数据集重建，使得一系列第一图像数据可用。确定指示在一系列第一图像数据内随时间的变化的变化变量，并且借助于变化变量对第一图像数据中的检查对象的不同部件进行区分。这种区别用于计算增强图像数据的迭代算法中的束硬化校正。

7. 发明申请

US20110243419A1 Multisegment Picture Reconstruction For Cardio CT Pictures 有权
标题翻译：心脏CT图像多段图像重建
公开(公告)号：US20110243419A1
公开(公告)日：2011-10-06
申请号：US13069438
申请日：2011-03-23
申请人： Thomas Allmendinger , Bernhard Schmidt
发明人： Thomas Allmendinger , Bernhard Schmidt
IPC分类号： G06K9/00
CPC分类号： A61B6/503 , A61B6/507 , A61B6/5264 , G06T5/003 , G06T5/50 , G06T11/005 , G06T2207/10081 , G06T2207/30004 , G06T2211/412
摘要： A method for reconstructing picture data of a cyclically-moving object from measurement data is disclosed, with the measurement data being detected beforehand for a relative rotational movement between a radiation source of a computed tomography system and the object under examination during a plurality of movement cycles of the object under examination. In at least one embodiment, a first picture and a second picture are determined from the measurement data, with measurement data of different movement cycles being combined for reconstruction of the second picture into a measurement dataset to be used as the basis for the picture reconstruction. Difference information is computed by comparing the first picture with the second picture. Using the difference information, a result picture is computed from the first picture and the second picture.
摘要翻译：公开了一种用于从测量数据重建循环移动物体的图像数据的方法，其中预先检测测量数据以在多个移动循环期间在计算机断层摄影系统的辐射源与被检查物体之间的相对旋转运动的被检查对象。在至少一个实施例中，从测量数据确定第一图像和第二图像，将不同移动周期的测量数据组合以将第二图像重建为要用作图像重建的基础的测量数据集。差分信息通过将第一图像与第二图像进行比较来计算。使用差分信息，从第一图像和第二图像计算结果图像。

8. 发明申请

US20110103542A1 BEAM HARDENING CORRECTION FOR CT PERFUSION MEASUREMENTS 有权
标题翻译：用于CT灌注测量的光束硬化校正
公开(公告)号：US20110103542A1
公开(公告)日：2011-05-05
申请号：US12914226
申请日：2010-10-28
申请人： Thomas Allmendinger , Marc Kachelrieß , Bernhard Schmidt , Philip Stenner
发明人： Thomas Allmendinger , Marc Kachelrieß , Bernhard Schmidt , Philip Stenner
IPC分类号： A61B6/03 , G06K9/00
CPC分类号： G06T11/005 , A61B6/032 , A61B6/4014 , A61B6/481 , A61B6/482 , A61B6/504 , A61B6/507 , G06T2211/424
摘要： A method is disclosed for reconstructing image data of an examination subject from measured data, wherein a series of measured data sets has previously been acquired during a relative rotational movement between a radiation source of a computed tomography system and the examination subject and the measured data sets relate to the same section of the examination subject at succeeding instants in time. In at least one embodiment, first image data is reconstructed in each case from the measured data sets such that a series of first image data is available. A change variable indicating a change over time within the series of first image data is determined, and a distinction is made between different components of the examination subject in the first image data with the aid of the change variable. This distinction is used for beam hardening correction in an iterative algorithm for calculating enhanced image data.
摘要翻译：公开了一种用于从测量数据重建检查对象的图像数据的方法，其中在计算机断层摄影系统的辐射源和检查对象之间的相对旋转运动期间已经获取了一系列测量数据集，并且测量数据集与后续时间的考试科目相同。在至少一个实施例中，第一图像数据在每种情况下从测量的数据集重建，使得一系列第一图像数据可用。确定指示在一系列第一图像数据内随时间的变化的变化变量，并且借助于变化变量对第一图像数据中的检查对象的不同部件进行区分。这种区别用于计算增强图像数据的迭代算法中的束硬化校正。

9. 发明授权

US08737701B2 CT image reconstruction of a moving examination object 有权
标题翻译：移动检查对象的CT图像重建
公开(公告)号：US08737701B2
公开(公告)日：2014-05-27
申请号：US12785528
申请日：2010-05-24
申请人： Thomas Allmendinger
发明人： Thomas Allmendinger
IPC分类号： G06K9/00
CPC分类号： A61B6/504 , A61B5/0402 , A61B6/032 , A61B6/4014 , A61B6/4441 , A61B6/481 , A61B6/482 , A61B6/507 , G06T11/005 , G06T2211/412
摘要： A method is disclosed for reconstructing image data of a moving examination object from measured data, the measured data having been acquired during a rotating movement of a radiation source of a computed tomography system around the examination object. In at least one embodiment, first image data are determined from the measured data. Movement information is determined from the first image data by forming the difference between images. Time instants of little movement of the examination object are determined from the movement information, the determined time instants being dependent on the location or site within the examination object. Finally, second image data are reconstructed taking the determined time instants into account. These data can be output as result images.
摘要翻译：公开了一种用于从测量数据重建运动检查对象的图像数据的方法，所测量的数据已经在计算机断层摄影系统的辐射源围绕检查对象的旋转运动期间获取。在至少一个实施例中，从测量数据确定第一图像数据。通过形成图像之间的差异，从第一图像数据确定运动信息。从移动信息确定检查对象的小移动的时刻，确定的时刻依赖于检查对象内的位置或位置。最后，考虑确定的时刻来重构第二图像数据。这些数据可以作为结果图像输出。

10. 发明授权

US08611987B2 Method and device for assisting in determination of the suitability of a patient for a scan of the patient's heart using an X-ray computer tomograph and method and X-ray computer tomograph for scanning the heart of a patient 有权
标题翻译：用于使用X射线计算机断层摄影机和方法以及用于扫描患者心脏的X射线计算机断层扫描仪来帮助确定患者对患者心脏扫描的适合性的方法和装置
公开(公告)号：US08611987B2
公开(公告)日：2013-12-17
申请号：US12818587
申请日：2010-06-18
申请人： Thomas Allmendinger , Heiko Mehldau , Thomas Seiler , Carsten Thierfelder
发明人： Thomas Allmendinger , Heiko Mehldau , Thomas Seiler , Carsten Thierfelder
IPC分类号： A61B5/05
CPC分类号： A61B5/0456 , A61B6/503 , A61B6/541
摘要： A method is disclosed for assisting in determination of the suitability of a patient for a scan of the heart of the patient using an X-ray computer tomograph. In at least one embodiment of the method, a) an electrocardiogram of the patient is recorded; b) the electrocardiogram is evaluated by predicting the occurrence time of at least the immediately following R wave on the basis of at least four immediately consecutive R waves of the electrocardiogram which were measured last, and comparing this with the actual measured occurrence time of the next R wave; and c) wherein the quality of the prediction is visualized qualitatively. Further, in at least one embodiment, a device is disclosed including an ECG instrument and a computation device for carrying out the method. At least one embodiment of the invention furthermore relates to a method and a device for scanning the heart of a patient on the basis of a prediction of R waves.
摘要翻译：公开了一种用于帮助确定患者对于使用X射线计算机断层摄影术对患者心脏进行扫描的适合性的方法。在该方法的至少一个实施例中，a）记录患者的心电图; b）通过基于最后测量的至少四个紧邻的心电图的R波来预测至少紧随其后的R波的发生时间来评估心电图，并将其与下一次的实际测量的发生时间进行比较 R波; 和c）其中预测的质量被定性可视化。此外，在至少一个实施例中，公开了一种包括用于执行该方法的ECG仪器和计算装置的装置。本发明的至少一个实施例还涉及一种用于基于R波的预测来扫描患者的心脏的方法和装置。

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