公开(公告)号：US10182741B2

公开(公告)日：2019-01-22

申请号：US14607896

申请日：2015-01-28

申请人： Stefan Popescu

发明人： Stefan Popescu

IPC分类号： A61B8/00 ,  A61B5/055 ,  A61B5/11 ,  A61B5/00 ,  A61B5/113 ,  G01R33/28 ,  A61B6/04 ,  A61B6/00 ,  A61B6/03 ,  G01R33/36 ,  G01R33/48

摘要： The embodiments relate to a device for positioning an examination object when using an imaging system. The device includes a positioning device for the purpose of positioning the examination object for data capture by the imaging system, and at least one sensor fixed to the positioning device. The at least one sensor is configured to capture a movement of the examination object relative to the positioning device. The device is configured to provide the movement to the imaging system.

公开(公告)号：US09810753B2

公开(公告)日：2017-11-07

申请号：US14487282

申请日：2014-09-16

申请人： Stefan Popescu

发明人： Stefan Popescu

IPC分类号： G01R33/36 ,  G01R33/34 ,  H04B1/04 ,  G01R33/3415

CPC分类号： G01R33/3692 ,  G01R33/34 ,  G01R33/3415 ,  H04B1/0483

摘要： A method is described for the wireless signal transmission of a measurement signal and/or a control signal between two functional components of a MR system. The measurement signal and/or the control signal is encoded into a RF transmit signal with a predefined orbital angular momentum and this RF transmit signal is transmitted between transmit antenna arrangements of the functional components. In addition, the embodiments relate to a local coil and an orbital angular momentum transmit unit with which the method may be carried out, and also a MR system that has a local coil and an orbital angular momentum transmit unit of this type.

公开(公告)号：US09507002B2

公开(公告)日：2016-11-29

申请号：US13949462

申请日：2013-07-24

申请人： Stefan Popescu

发明人： Stefan Popescu

IPC分类号： G01R33/56 ,  G01R33/565 ,  G01R33/483

CPC分类号： G01R33/56 ,  G01R33/4835 ,  G01R33/565

摘要： In a method, a computer-readable storage medium and a magnetic resonance apparatus for processing image data of the magnetic resonance apparatus, a representation of the degree of image blurring in magnetic resonance data that results from the acquisition of the data with view angle tilting is provided as an input to a processor. The processor calculates a convolution kernel from the input that mathematically relates the degree of blurring to the acquired data. The convolution kernel is applied either to the acquired data before reconstruction of an image therefrom or to the reconstructed image data, so that the resulting image is deblurred.

摘要翻译： 在一种方法中，用于处理磁共振装置的图像数据的计算机可读存储介质和磁共振装置，由视角倾斜的数据的获取产生的磁共振数据中的图像模糊程度的表示是 作为输入提供给处理器。 处理器从输入中计算卷积内核，数学上将模糊度与所获取的数据相关联。 将卷积核应用于从其重建图像之前的所获取的数据或重建的图像数据，使得所得到的图像被去模糊。

公开(公告)号：US09291689B2

公开(公告)日：2016-03-22

申请号：US13679772

申请日：2012-11-16

申请人： Stefan Popescu

发明人： Stefan Popescu

IPC分类号： G01V3/00 ,  G01R33/341 ,  G01R33/48 ,  G01R33/36

CPC分类号： G01R33/341 ,  G01R33/3621 ,  G01R33/3692 ,  G01R33/48

摘要： A receive apparatus in a strong magnetic alternating field is disposed in a magnetic resonance tomography (MRT) system. The MRT system includes at least one receive apparatus for a magnetic resonance high frequency (MR-HF) signal. The receive apparatus includes a receive coil element for receiving the MR-HF signal, an optical modulator, in which an electrical control input is coupled to the receive coil element, and an optical output for outputting an output signal of the modulator. The optical modulator forms an optical demodulation device for the MR-HF signal. The optical modulator is coupled to a laser light source via an optical input that is configured to generate a laser light. A light intensity of the laser light varies periodically with a predetermined frequency.

摘要翻译： 强磁场中的接收装置设置在磁共振断层摄影（MRT）系统中。 MRT系统包括用于磁共振高频（MR-HF）信号的至少一个接收装置。 接收装置包括用于接收MR-HF信号的接收线圈元件，其中电控制输入耦合到接收线圈元件的光调制器和用于输出调制器的输出信号的光输出。 光调制器形成用于MR-HF信号的光解调装置。 光调制器经由被配置为产生激光的光输入端耦合到激光光源。 激光的光强度以预定频率周期性地变化。

公开(公告)号：US08756211B2

公开(公告)日：2014-06-17

申请号：US13557484

申请日：2012-07-25

申请人： Lars Trieloff ,  Marius Zaharia ,  Stefan Popescu ,  Roland Schär ,  Stelian Crisan

发明人： Lars Trieloff ,  Marius Zaharia ,  Stefan Popescu ,  Roland Schär ,  Stelian Crisan

IPC分类号： G06F17/30

CPC分类号： G06F17/30 ,  G06Q30/02 ,  G06Q30/0242

摘要： One exemplary embodiment involves displaying, by a device comprising a processor, indications of which events or properties of a component are exposed for analytics, wherein the component comprises a template for instances of the component for use in electronic content. The exemplary embodiment further involves determining, by the device, a mapping based on selection of events or properties of the component to map to corresponding data elements to be tracked by an analytics service. The exemplary embodiment further involves providing, by the device, electronic content comprising at least one instance of the component, the electronic content configured to send information about the data elements to the analytics service based on the mapping during use of the electronic content.

摘要翻译： 一个示例性实施例涉及通过包括处理器的设备来显示组件的哪些事件或属性被暴露用于分析，其中所述组件包括用于电子内容中的组件的实例的模板。 该示例性实施例还包括由设备确定基于组件的事件或属性的选择的映射，以映射到由分析服务跟踪的相应数据元素。 该示例性实施例还包括通过该设备提供包括组件的至少一个实例的电子内容，电子内容被配置为基于在使用电子内容期间的映射来向分析服务发送关于数据元素的信息。

公开(公告)号：US08638095B2

公开(公告)日：2014-01-28

申请号：US12893140

申请日：2010-09-29

申请人： Matthias Fenchel ,  Stefan Popescu

发明人： Matthias Fenchel ,  Stefan Popescu

IPC分类号： G01V3/00

CPC分类号： G01R33/481 ,  A61B6/037 ,  A61B6/4417 ,  A61B6/5247

摘要： A method is disclosed for correction of truncations of a magnetic resonance image of an object under examination in the reconstruction of image data from raw data. In at least one embodiment, the method includes determining a number of one-dimensional projections of imaged field of view in the Radon space from the raw data in order to obtain a projection profile; checking each projection profile for whether the projection profile exhibits a truncation; if the respective checked projection profile exhibits a truncation, expanding the projection profile for correcting the truncation in that the projection profile is extrapolated in accordance with a predetermined extrapolation model in the area in which it exhibits the truncation; and reconstructing image data based on the expanded projection profiles in which the truncation of the image of the object under examination is corrected.

摘要翻译： 公开了一种用于在从原始数据重建图像数据中校正被检查物体的磁共振图像的截断的方法。 在至少一个实施例中，该方法包括从原始数据确定Radon空间中的成像视场的一维投影的数量，以便获得投影轮廓; 检查每个投影轮廓以确定投影轮廓是否显示截断; 如果相应的检查的投影轮廓呈现截断，则扩展用于校正截断的投影轮廓，因为根据在其展现截断的区域中的预定外推模型外推投影轮廓; 以及基于扩大的投影轮廓重建图像数据，其中校正被检查物体的图像的截断。

公开(公告)号：US20120306496A1

公开(公告)日：2012-12-06

申请号：US13482817

申请日：2012-05-29

申请人： Stefan Popescu

发明人： Stefan Popescu

IPC分类号： H01Q1/52 ,  B05D1/02 ,  B29C45/14 ,  G01R33/34 ,  B05D5/12 ,  B82Y30/00 ,  B82Y99/00

CPC分类号： G01R33/34007 ,  G01R33/3657 ,  G01R33/422 ,  H01Q1/526 ,  H01Q17/002

摘要： A high-frequency antenna unit for a magnetic resonance apparatus includes a high-frequency antenna and a shield unit. The shield unit, the high-frequency antenna, or a combination thereof is formed at least partially from a composite material. The composite material includes at least one electrically conducting material and at least one electrically non-conducting material.

摘要翻译： 用于磁共振装置的高频天线单元包括高频天线和屏蔽单元。 屏蔽单元，高频天线或其组合至少部分地由复合材料形成。 复合材料包括至少一种导电材料和至少一种非导电材料。

公开(公告)号：US08165270B2

公开(公告)日：2012-04-24

申请号：US12566858

申请日：2009-09-25

申请人： Christian David ,  Tilman Donath ,  Eckhard Hempel ,  Martin Hoheisel ,  Barbara Matthis ,  Franz Pfeiffer ,  Stefan Popescu

发明人： Christian David ,  Tilman Donath ,  Eckhard Hempel ,  Martin Hoheisel ,  Barbara Matthis ,  Franz Pfeiffer ,  Stefan Popescu

IPC分类号： G21K1/00

CPC分类号： A61B6/06 ,  A61B6/03 ,  A61B6/4092 ,  A61B6/4291 ,  A61B6/484 ,  G01T1/00 ,  G21K1/025 ,  G21K1/06 ,  G21K2207/005 ,  Y10T29/49

摘要： In a method for the production of x-ray-optical gratings composed of a first material forming of periodically arranged grating webs and grating openings, a second material is applied by electroplating to fill the grid openings. The electroplating is continued until a cohesive layer of the second material with uniform height is created over the grating webs with this layer having a large absorption coefficient, the absorption properties of the grating structure of the grating are homogenized, so an improvement of the measurement signals that are generated with this grating is improved. Moreover, the mechanical stability of gratings produced in such a manner is improved.

摘要翻译： 在用于生产由形成周期性布置的光栅幅材和光栅开口的第一材料组成的x射线光栅的方法中，通过电镀施加第二材料以填充栅格开口。 电镀继续进行，直到在光栅幅面上形成具有均匀高度的第二材料的内聚层，该层具有大的吸收系数，光栅的光栅结构的吸收特性被均匀化，因此测量信号的改进 改善了用该光栅产生的光栅。 此外，改善了以这种方式制造的光栅的机械稳定性。

公开(公告)号：US20120068704A1

公开(公告)日：2012-03-22

申请号：US13239670

申请日：2011-09-22

申请人： Stefan Popescu

发明人： Stefan Popescu

IPC分类号： G01R33/54 ,  G01R33/36

CPC分类号： G01R33/5611 ,  G01R33/3415 ,  G01R33/4835

摘要： In a method and a magnetic resonance (MR) system and method to generate MR image data of a predetermined volume segment within an examination subject, multiple slices of the volume segment are simultaneously excited by at least one RF excitation pulse, and during the excitation a slice selection gradient is switched. The measurement signals from the multiple slices are acquired with multiple RF reception antennas, at least some of which are spaced along the propagation direction of the slice selection gradient. During the acquisition of the measurement signals the slice selection gradient is switched in order to achieve a spectral separation of the measurement signals of different slices. The MR image data are generated from the measurement signals.

摘要翻译： 在用于产生检查对象内的预定体积段的MR图像数据的方法和磁共振（MR）系统和方法中，通过至少一个RF激励脉冲同时激励体积段的多个片段，并且在激发期间 切片选择梯度切换。 使用多个RF接收天线来获取来自多个片段的测量信号，其中至少一些沿切片选择梯度的传播方向间隔开。 在获取测量信号期间，切片选择梯度被切换以实现不同切片的测量信号的光谱分离。 从测量信号生成MR图像数据。

公开(公告)号：US20110218421A1

公开(公告)日：2011-09-08

申请号：US13037514

申请日：2011-03-01

申请人： Eckhard Hempel ,  Stefan Popescu ,  Nicolae Rusca

发明人： Eckhard Hempel ,  Stefan Popescu ,  Nicolae Rusca

IPC分类号： A61B5/055 ,  A61N1/36 ,  A61B17/00 ,  G03B42/02

CPC分类号： A61B5/04085 ,  A61B5/0452 ,  A61B5/4836 ,  A61B5/7207 ,  A61B6/503 ,  A61N1/36017 ,  A61N1/36114 ,  A61N5/0619 ,  G01R33/5673

摘要： A device is disclosed for stimulating the trigeminal nerve of a patient in order to reduce the heart rate of the patient for recording image information from the heart of the patient. In at least one embodiment, the device includes at least one device for mechanical, electrical, magnetic, thermal, optical and/or chemical stimulation of the trigeminal nerve. Furthermore, at least one embodiment relates to an apparatus including at least one such device and a unit for registering the heart rate of the patient, which unit interacts with the device. Furthermore, at least one embodiment moreover relates to a method for reducing the heart rate of a patient in order to record image information from the heart of the patient, in which method the trigeminal nerve of the patient is stimulated by at least one such device in order to lower the heart rate of the patient.

摘要翻译： 公开了一种用于刺激患者的三叉神经的装置，以便降低患者的心率以从患者的心脏记录图像信息。 在至少一个实施例中，该装置包括用于三叉神经的机械，电，磁，热，光和/或化学刺激的至少一个装置。 此外，至少一个实施例涉及包括至少一个这样的装置和用于登记患者的心率的单元的装置，该单元与装置相互作用。 此外，至少一个实施例还涉及一种用于减少患者的心率以便从患者的心脏记录图像信息的方法，在该方法中，患者的三叉神经被至少一个这样的装置刺激 以降低患者的心率。