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公开(公告)号：US20120201344A1
公开(公告)日：2012-08-09
申请号：US13360964
申请日：2012-01-30
申请人： Ute Feuerlein , Ernst Klotz , Rainer Raupach , Bernhard Schmidt
发明人： Ute Feuerlein , Ernst Klotz , Rainer Raupach , Bernhard Schmidt
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B6/405 , A61B6/481 , A61B6/5258 , A61B6/545 , A61B6/583 , G06T5/009 , H05G1/32
摘要： In a method and x-ray device to adapt the width and the position of a central value of a greyscale windowing for imaging with the x-ray device based on CT values determined with said x-ray device, the adaptation takes place within the scope of a determination and adjustment of an acquisition tube voltage of an x-ray tube of the x-ray device for an examination of a defined tissue of a patient, assuming a reference tube voltage for the examination of the defined tissue of the patient, and in which a width and position of a central value of the greyscale windowing that are associated with the reference tube voltage are automatically adapted to the acquisition tube voltage.
摘要翻译： 在一种方法和x射线装置中，根据由所述X射线装置确定的CT值，使用X射线装置进行成像的灰度窗口的中心值的宽度和位置，以适应范围 确定和调整x射线装置的X射线管的采集管电压，用于检查患者的确定的组织，假设用于检查患者的确定的组织的参考管电压，以及 其中与参考管电压相关联的灰度窗口的中心值的宽度和位置自动适应于采集管电压。
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公开(公告)号：US20100061606A1
公开(公告)日：2010-03-11
申请号：US12512080
申请日：2009-07-30
IPC分类号： G06K9/00
CPC分类号： G06F19/321 , G06F19/00 , G06T5/50
摘要： A method and system for data dependent multi phase image visualization, includes: acquiring a plurality of series of image data acquisitions; registering the plurality of series of image data acquisitions to a same reference series to create a plurality of registered series; combining information from the registered series to create a new series; creating a further new series by a selection decision based on combination rules from information from the plurality of registered series and the new series; and displaying the further new series.
摘要翻译： 一种用于数据相关多相图像可视化的方法和系统，包括：获取多个系列图像数据采集; 将多个一系列图像数据采集登记到相同的参考系列以创建多个登记的系列; 结合注册系列的信息创建新系列; 通过基于来自多个注册系列和新系列的信息的组合规则的选择决定来创建另一新系列; 并展示进一步的新系列。
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公开(公告)号：US07477929B2
公开(公告)日：2009-01-13
申请号：US11352227
申请日：2006-02-13
申请人： Ernst Klotz , Annabella Rauscher
发明人： Ernst Klotz , Annabella Rauscher
摘要： A method is disclosed for forecasting the contrast medium flow in a living body, in particular in a patient, in which a defined test bolus with a contrast medium is injected, preferably intravenously and with a known injection flow profile, into the body, preferably into a blood vessel. The time concentration profile of the contrast medium is observed and determined over a limited time period with a number of measuring instants at at least one location in the body with the aid of a tomographic method. The time profile of the contrast medium concentration of another contrast medium dose is forecast with the aid of a linear cause/effect formulation from the measured data obtained via the distribution of the contrast medium. The following calculation formula is then used for forecasting the time concentration profile {tilde over (c)}R(t) of the contrast medium at at least one of the previously measured locations of the body: c ~ R ( t ) = 1 F T ∑ n = na n = ne ∫ x = xa x = xe ⅆ t ′ c ~ R ( t + t 0 T - n Δ T - t ′ ) b R ′ ( t ′ ) .
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4.发明申请公开(公告)号：US20100166281A1
公开(公告)日：2010-07-01
申请号：US12641452
申请日：2009-12-18
申请人： Corinna Bürger , Ernst Klotz , Jochen Schleu , Grzegorz Soza
发明人： Corinna Bürger , Ernst Klotz , Jochen Schleu , Grzegorz Soza
IPC分类号： G06K9/00
CPC分类号： A61B6/504 , A61B6/032 , A61B6/4014 , A61B6/4266 , A61B6/481 , A61B6/507 , G06T7/11 , G06T7/136 , G06T7/174 , G06T2207/10081 , G06T2207/30016
摘要： A method for distinguishing between gray matter and white matter starting from a time-dependent computed tomography image data record from a perfusion CT examination is disclosed. In at least one embodiment, a plurality of time-independent images are calculated from the time-dependent image data record, a plurality of threshold histogram analyses are performed in order to determine regions of the brain which can be assigned to one or more types of cerebral matter, and subsequently the region of gray matter is determined from the information obtained in respect of type and region of the cerebral matter using at least one logical combination and at least one exclusion method. A control and computational unit is also disclosed with a storage medium in which a computer program or program module is stored, which executes the described method during operation.
摘要翻译： 公开了从灌注CT检查的时间依赖性计算机断层摄影图像数据记录开始的区分灰质和白质的方法。 在至少一个实施例中，从时间相关图像数据记录中计算多个时间独立图像，执行多个阈值直方图分析，以便确定可分配给一个或多个类型的脑的区域 脑部物质，随后使用至少一种逻辑组合和至少一种排除方法，从关于脑物质的类型和区域获得的信息确定灰质区域。 还公开了一种其中存储有计算机程序或程序模块的存储介质的控制和计算单元，其在操作期间执行所描述的方法。
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公开(公告)号：US20060239918A1
公开(公告)日：2006-10-26
申请号：US11352383
申请日：2006-02-13
IPC分类号： A61B5/055
摘要： A method is disclosed for forecasting the contrast medium flow in a living body, in particular in a patient, in which a defined test bolus with a contrast medium is injected, preferably intravenously and with a known injection flow profile, into the body, preferably into a blood vessel. The time concentration profile of the contrast medium is observed and determined over a limited time period with a number of measuring instants at at least one location in the body with the aid of a tomographic method. The time profile of the contrast medium concentration of another contrast medium dose is forecast with the aid of a linear cause/effect formulation from the measured data obtained via the distribution of the contrast medium. The following calculation formula is then used for forecasting the time concentration profile {tilde over (c)}R(t) of the contrast medium at at least one of the previously measured locations of the body: c ~ R ( t ) = 1 F T ∑ n = na n = ne ∫ x = xa x = xe ⅆ t ′ c ~ R ( t + t 0 T - n Δ T - t ′ ) b R ′ ( t ′ ) .
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公开(公告)号：US20060239917A1
公开(公告)日：2006-10-26
申请号：US11352227
申请日：2006-02-13
申请人： Ernst Klotz , Annabella Rauscher
发明人： Ernst Klotz , Annabella Rauscher
IPC分类号： A61B5/055
摘要： A method is disclosed for forecasting the contrast medium flow in a living body, in particular in a patient, in which a defined test bolus with a contrast medium is injected, preferably intravenously and with a known injection flow profile, into the body, preferably into a blood vessel. The time concentration profile of the contrast medium is observed and determined over a limited time period with a number of measuring instants at at least one location in the body with the aid of a tomographic method. The time profile of the contrast medium concentration of another contrast medium dose is forecast with the aid of a linear cause/effect formulation from the measured data obtained via the distribution of the contrast medium. The following calculation formula is then used for forecasting the time concentration profile {tilde over (c)}R(t) of the contrast medium at at least one of the previously measured locations of the body: c ~ R ( t ) = 1 F T ∑ n = na n = ne ∫ x = xa x = xe ⅆ t ′ c ~ R ( t + t 0 T - n Δ T - t ′ ) b R ′ ( t ′ ) .
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7.发明申请公开(公告)号：US20060018424A1
公开(公告)日：2006-01-26
申请号：US11169913
申请日：2005-06-30
申请人： Herbert Bruder , Thomas Flohr , Ernst Klotz , Karl Stierstorfer
发明人： Herbert Bruder , Thomas Flohr , Ernst Klotz , Karl Stierstorfer
CPC分类号： A61B6/032 , A61B5/1075 , A61B6/027 , A61B6/4085 , A61B6/461 , G01N23/046 , G01N2223/419 , G01N2223/612
摘要： A method is disclosed for a multislice computer assisted tomograph, capable of carrying out a spiral scan of an object volume with a pitch p selected to be small enough that each slice of the object volume is multiply detected during the spiral scan. The method includes calculating, using measured data of two temporally consecutive at least one of revolutions and half revolutions, an image of the object volume from which a change inside the object volume between the two temporally consecutive at least one of revolutions and half revolutions is directly visible. An embodiment of the method can permit, for example, the detection and visualization of dynamic processes with an enhanced time resolution.
摘要翻译： 公开了一种用于多层计算机辅助断层摄影机的方法，其能够对所选择的节距p的物体体积进行螺旋扫描，所述间距p被选择为足够小，使得在螺旋扫描期间对对象体积的每个切片进行乘法检测。 该方法包括使用两个时间上连续的至少一个旋转和半圈的测量数据来计算在两个时间上连续的至少一个转和半转之间的对象体积内的变化直接从该物体体积的图像 可见。 该方法的实施例可以允许例如具有增强的时间分辨率的动态过程的检测和可视化。
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公开(公告)号：US08509379B2
公开(公告)日：2013-08-13
申请号：US13360964
申请日：2012-01-30
申请人： Ute Feuerlein , Ernst Klotz , Rainer Raupach , Bernhard Schmidt
发明人： Ute Feuerlein , Ernst Klotz , Rainer Raupach , Bernhard Schmidt
CPC分类号： A61B6/032 , A61B6/405 , A61B6/481 , A61B6/5258 , A61B6/545 , A61B6/583 , G06T5/009 , H05G1/32
摘要： In a method and x-ray device to adapt the width and the position of a central value of a greyscale windowing for imaging with the x-ray device based on CT values determined with said x-ray device, the adaptation takes place within the scope of a determination and adjustment of an acquisition tube voltage of an x-ray tube of the x-ray device for an examination of a defined tissue of a patient, assuming a reference tube voltage for the examination of the defined tissue of the patient, and in which a width and position of a central value of the greyscale windowing that are associated with the reference tube voltage are automatically adapted to the acquisition tube voltage.
摘要翻译： 在一种方法和x射线装置中，根据由所述X射线装置确定的CT值，使用x射线装置进行成像的灰度窗口的中心值的宽度和位置调整，适应范围在 确定和调整x射线装置的X射线管的采集管电压，用于检查患者的确定的组织，假设用于检查患者的确定的组织的参考管电压，以及 其中与参考管电压相关联的灰度窗口的中心值的宽度和位置自动适应于采集管电压。
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9.发明授权Method for distinguishing between gray matter and white matter and CT system for carrying out the method 失效用于区分灰质和白质的方法和执行该方法的CT系统公开(公告)号：US08467587B2
公开(公告)日：2013-06-18
申请号：US12641452
申请日：2009-12-18
申请人： Corinna Bürger , Ernst Klotz , Jochen Schleu , Grzegorz Soza
发明人： Corinna Bürger , Ernst Klotz , Jochen Schleu , Grzegorz Soza
IPC分类号： G06K9/00
CPC分类号： A61B6/504 , A61B6/032 , A61B6/4014 , A61B6/4266 , A61B6/481 , A61B6/507 , G06T7/11 , G06T7/136 , G06T7/174 , G06T2207/10081 , G06T2207/30016
摘要： A method for distinguishing between gray matter and white matter starting from a time-dependent computed tomography image data record from a perfusion CT examination is disclosed. In at least one embodiment, a plurality of time-independent images are calculated from the time-dependent image data record, a plurality of threshold histogram analyses are performed in order to determine regions of the brain which can be assigned to one or more types of cerebral matter, and subsequently the region of gray matter is determined from the information obtained in respect of type and region of the cerebral matter using at least one logical combination and at least one exclusion method. A control and computational unit is also disclosed with a storage medium in which a computer program or program module is stored, which executes the described method during operation.
摘要翻译： 公开了从灌注CT检查的时间依赖性计算机断层摄影图像数据记录开始的区分灰质和白质的方法。 在至少一个实施例中，从时间相关图像数据记录中计算多个时间独立图像，执行多个阈值直方图分析，以便确定可分配给一个或多个类型的脑的区域 脑部物质，随后使用至少一种逻辑组合和至少一种排除方法，从关于脑物质的类型和区域获得的信息确定灰质区域。 还公开了一种其中存储有计算机程序或程序模块的存储介质的控制和计算单元，其在操作期间执行所描述的方法。
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公开(公告)号：US07400756B2
公开(公告)日：2008-07-15
申请号：US10910628
申请日：2004-08-04
申请人： Ernst Klotz
发明人： Ernst Klotz
IPC分类号： G06K9/00
CPC分类号： A61B6/481 , A61B6/504 , A61B6/507 , G01R33/56341
摘要： A method is for calibration of perfusion parameter images. The image data from tomographic imaging measurements are analyzed using a perfusion model, and perfusion parameter values obtained from the analysis are calibrated with a calibration factor to a physiological normal value. To perform the calibration, an image area which contains several different tissue compositions, and in which approximately normal perfusion conditions can be assumed, is selected from the obtained perfusion parameter image. A frequency analysis of the perfusion parameter values contained in this image area is then performed, and at least one frequency interval is selected which corresponds at least approximately to a frequency interval of the occurrence of perfusion parameter values of a known tissue composition. A mean value is calculated from the perfusion parameter values in the frequency interval, and a comparison with the physiological normal value for this tissue composition is made in order to determine the calibration factor or a calibration value included in the calibration factor. The method permits automatic or substantially automatic calibration of perfusion parameter images.
摘要翻译： 一种用于校准灌注参数图像的方法。 使用灌注模型分析来自断层成像测量的图像数据，并且用校准因子校准从分析获得的灌注参数值至生理正常值。 为了执行校准，从所获得的灌注参数图像中选择包含几种不同组织组成并且其中可以假定近似正常灌注条件的图像区域。 然后执行包含在该图像区域中的灌注参数值的频率分析，并且选择至少一个对应于至少近似于已知组织组合物的灌注参数值的发生频率间隔的至少一个频率间隔。 根据频率间隔中的灌注参数值计算平均值，并且与该组织成分的生理正常值进行比较，以便确定校准因子或包括在校准因子中的校准值。 该方法允许灌注参数图像的自动或基本自动校准。
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