公开(公告)号：US10254372B2

公开(公告)日：2019-04-09

申请号：US15260535

申请日：2016-09-09

Applicant: Andreas Greiser ,  Maria Kröll ,  Dominik Paul ,  Steffen Schröter ,  Jens Thöne

Inventor： Andreas Greiser ,  Maria Kröll ,  Dominik Paul ,  Steffen Schröter ,  Jens Thöne

IPC: G01V3/00 ,  G01R33/567 ,  G01R33/28 ,  G01R33/341

Abstract: A method is provided for recording, with a magnetic resonance device, magnetic resonance data of a target region of a patient moved by their breathing. An optical camera arranged in a bore of the magnetic resonance device directed onto the patient is used. Image data of the patient recorded by the camera before and/or during the recording of the magnetic resonance data is evaluated to form breathing information describing the breathing state and the breathing information is used for triggering and/or movement correction and/or assessment of a process in which a patient holds their breath.

公开(公告)号：US20170205483A1

公开(公告)日：2017-07-20

申请号：US15407141

申请日：2017-01-16

Applicant: Thorsten Feiweier ,  Andreas Greiser ,  Uvo Hölscher ,  Thorsten Speckner ,  David Grodzki ,  Mathias Nittka ,  Daniel Nico Splitthoff

Inventor： Thorsten Feiweier ,  Andreas Greiser ,  Uvo Hölscher ,  Thorsten Speckner ,  David Grodzki ,  Mathias Nittka ,  Daniel Nico Splitthoff

IPC: G01R33/54 ,  G01R33/28

Abstract: A method for setting a MRI sequence, a magnetic resonance device, and a computer program product are provided. The method includes providing, by a limitation unit, at least one limitation; providing, by a parameter provision unit, a plurality of parameters of the sequence, wherein at least one parameter of the plurality of parameters is assigned to a default parameter value; selecting, by a selection unit, a parameter of the plurality of parameters; determining, by a simulation unit, at least one sequential pattern based on at least one default parameter value of the default parameter values; determining, by an analysis unit, a permissible range of parameter values of the selected parameter based on at least one sequential pattern and the at least one limitation; and establishing, by an establishment unit, a new parameter value of the selected parameter within the permissible range of the parameter values.

公开(公告)号：US09101283B2

公开(公告)日：2015-08-11

申请号：US12629452

申请日：2009-12-02

Applicant: Andreas Greiser

Inventor： Andreas Greiser

IPC: A61B5/05 ,  A61B5/055 ,  A61B5/02 ,  A61B5/00 ,  G01R33/563 ,  G01R33/54

CPC classification number: A61B5/055 ,  A61B5/02007 ,  A61B5/7257 ,  G01R33/543 ,  G01R33/546 ,  G01R33/56316

Abstract: In a method and magnetic resonance system to determine a flow coding for a flow measurement with the magnetic resonance system, in order to determine the optimal flow coding, a flow pre-measurement with multiple different flow codings is conducted within a slice within a body to be examined, each of these codings allowing flow velocities to be detected with a sensitivity dependent on the respective coding. A velocity distribution of the non-slice-location-specific flow velocity values is generated from all of the results of this flow pre-measurement by a common Fourier transformation. The optimal flow coding for the flow measurement is then determined based on this velocity distribution.

Abstract translation: 在用于确定用磁共振系统进行流量测量的流动编码的方法和磁共振系统中，为了确定最佳的流动编码，在多个不同的流程编码的流预测量在体内的切片内进行 被检查，这些编码中的每一个允许以取决于相应编码的灵敏度来检测流速。 通过通用傅立叶变换从该流量预测量的所有结果生成非切片位置特定流速值的速度分布。 然后基于该速度分布确定流量测量的最佳流编码。

公开(公告)号：US08848990B2

公开(公告)日：2014-09-30

申请号：US13237198

申请日：2011-09-20

Applicant: Hui Xue ,  Saurabh Shah ,  Jens Gühring ,  Andreas Greiser ,  Christophe Chefd'hotel ,  Christoph Guetter ,  Marie-Pierre Jolly ,  Sven Zuehlsdorff

Inventor： Hui Xue ,  Saurabh Shah ,  Jens Gühring ,  Andreas Greiser ,  Christophe Chefd'hotel ,  Christoph Guetter ,  Marie-Pierre Jolly ,  Sven Zuehlsdorff

IPC: G06K9/00 ,  G06T5/50 ,  G06T7/00 ,  G01R33/44 ,  G01R33/565

CPC classification number: G06T5/50 ,  G01R33/448 ,  G01R33/56509 ,  G06T7/30 ,  G06T2207/10088 ,  G06T2207/20201 ,  G06T2207/30048

Abstract: A method for performing motion compensation in a series of magnetic resonance (MR) images includes acquiring a set of MR image frames spanning different points along an MR recovery curve. A motion-free synthetic image is generated for each of the acquired MR image frames using prior knowledge pertaining to an MR recovery curve. Each of the acquired MR images is registered to its corresponding generated synthetic images. Motion within each of the acquired MR image is corrected based on its corresponding generated synthetic image that has been registered thereto.

Abstract translation: 用于在一系列磁共振（MR）图像中执行运动补偿的方法包括获取沿着MR恢复曲线横跨不同点的一组MR图像帧。 使用与MR恢复曲线相关的先前知识，为每个所获取的MR图像帧生成无运动合成图像。 所获取的MR图像中的每一个被注册到其对应的生成的合成图像。 基于其对应的生成的已经被注册的合成图像来校正所获取的MR图像的每一个内的运动。

公开(公告)号：US08581583B2

公开(公告)日：2013-11-12

申请号：US13011122

申请日：2011-01-21

Applicant: Andreas Greiser

Inventor： Andreas Greiser

IPC: G01V3/00

CPC classification number: A61B5/055 ,  A61B5/7207 ,  G01R33/4835 ,  G01R33/50

Abstract: In a method and apparatus for MR imaging, a data acquisition sequence is executed wherein at least two slices of an examination subject are imaged in parallel with a gradient echo method for spatially resolved quantification of the T1 relaxation time. At least one first acquisition sequence is implemented to acquire MR data from a first slice of the examination subject and at least one second acquisition sequence is implemented to acquire MR data from a second slice of the examination subject. The acquisition sequences each include an inversion pulse and at least two successive readout steps. The first and second acquisition sequences are temporally offset from one another such that they at least partially overlap.

Abstract translation: 在用于MR成像的方法和装置中，执行数据采集序列，其中检查对象的至少两个切片与梯度回波方法并行地成像，以用于T1弛豫时间的空间分辨量化。 实施至少一个第一获取序列以从检查对象的第一切片获取MR数据，并且实施至少一个第二获取序列以从检查对象的第二切片获取MR数据。 采集序列各自包括反转脉冲和至少两个连续的读出步骤。 第一和第二采集序列在时间上彼此偏移，使得它们至少部分重叠。

公开(公告)号：US20120268125A1

公开(公告)日：2012-10-25

申请号：US13451956

申请日：2012-04-20

Applicant: Andreas Greiser ,  Peter Speier

Inventor： Andreas Greiser ,  Peter Speier

IPC: G01R33/44

CPC classification number: G01R33/56316 ,  G01R33/543 ,  G01R33/5635

Abstract: In a method for optimization of a flow coding with switching of an additional bipolar dephasing gradient pair, used in a magnetic resonance (MR) phase contrast angiography, the strength of the flow coding is selected depending on the flow velocity in the vessels that should be depicted. MR signals of an examination region are acquired with continuously running overview measurements, with an operator-selected flow coding strength. After the selected flow coding strength is adopted automatically for the next measurement of the continuously running overview measurements, and two partial measurements with different flow codings are implemented for each selected strength and a phase difference image from the two partial measurements is calculated and depicted in real time, and the selected flow coding strength is automatically adopted for the MR phase contrast angiography.

Abstract translation: 在用于磁共振（MR）相位对比血管造影术中的附加双相去极化梯度对的切换优化流程编码的方法中，流动编码的强度根据应该是的血管中的流速来选择 描绘。 通过持续运行的概览测量，以操作员选择的流动编码强度来获取检查区域的MR信号。 在所选择的流量编码强度被自动地用于连续运行的概览测量的下一次测量之后，并且对于每个所选择的强度实现具有不同流程编码的两个部分测量，并且来自两个部分测量的相位差图像被计算并且被实际描绘 时间，并且所选流量编码强度自动用于MR相位对比血管造影术。

公开(公告)号：US08085045B2

公开(公告)日：2011-12-27

申请号：US12545174

申请日：2009-08-21

Applicant: Andreas Greiser ,  Sven Zuehlsdorff

Inventor： Andreas Greiser ,  Sven Zuehlsdorff

IPC: G01V3/00

CPC classification number: G01R33/58 ,  A61B2560/0223 ,  G01R33/543 ,  G01R33/5614 ,  G01R33/56325 ,  G01R33/5673

Abstract: In a method and magnetic resonance apparatus to acquire and present calibration images of a periodically moving organ with the use of magnetic resonance technology, calibration images are acquired by acquiring measurement data for multiple calibration images during one continuous period of the organ movement, the multiple calibration images differing in their offset frequency and/or in their spatial position in the organ to be examined, and the calibration images in a presentation manner that, from the visual quality of the respective images, allows the user to select (identify) the image acquired with the offset frequency that should then be used to acquire the diagnostic image are displayed to a user.

Abstract translation: 在利用磁共振技术获取和呈现周期性运动的器官的校准图像的方法和磁共振装置中，通过在器官移动的连续的一个连续期间获取多个校准图像的测量数据来获取校准图像，多次校准 其偏移频率和/或其被检查器官中的空间位置不同的图像，以及以各自图像的视觉质量允许用户选择（识别）获取的图像的呈现方式的校准图像 将用于获取诊断图像的偏移频率显示给用户。

公开(公告)号：US20100286503A1

公开(公告)日：2010-11-11

申请号：US12774278

申请日：2010-05-05

Applicant: Andreas Greiser ,  Saurabh Shah

Inventor： Andreas Greiser ,  Saurabh Shah

IPC: A61B5/055

CPC classification number: G01R33/54 ,  A61B5/055 ,  G01R33/543 ,  G01R33/58

Abstract: In a method of a magnetic resonance system and a method and computer-readable storage medium for the operation thereof to acquire magnetic resonance image data of an examination subject, wherein magnetic resonance system has a number of subsystems and a control device, a number of adjustment measurements to adjust at least one subsystem for making a medical diagnostic data acquisition are implemented through the control device. In these adjustment measurements, an adjustment volume associated with the appertaining adjustment measurement is taken into account that encompasses at least one region of a body containing the examination subject. For this purpose, markings established by the control device within image data of the examination subject and characterizing the spatial occupation (position and orientation) and/or a dimension of the examination subject are determined. Based on these markings the spatial occupation and extent of an adjustment volume for an adjustment measurement are determined automatically by the control device.

Abstract translation: 在磁共振系统的方法和方法和计算机可读存储介质中，其用于获取检查对象的磁共振图像数据，其中磁共振系统具有多个子系统和控制装置，多个调整 通过控制装置实现用于调整用于进行医疗诊断数据采集的至少一个子系统的测量。 在这些调整测量中，考虑与包含检查对象的身体的至少一个区域相关联的调整量调整量。 为此目的，确定由检查对象的图像数据中的控制装置建立的并且表征空间占用（位置和方向）和/或检查对象的维度的标记。 基于这些标记，调节测量的调节量的空间占用和范围由控制装置自动确定。

公开(公告)号：US20100160766A1

公开(公告)日：2010-06-24

申请号：US12629375

申请日：2009-12-02

Applicant: Andreas Greiser ,  Jens Guehring ,  Mehmet Akif Guelsuen ,  Arne Littmann ,  Peter Schmitt ,  Michael Zenge

Inventor： Andreas Greiser ,  Jens Guehring ,  Mehmet Akif Guelsuen ,  Arne Littmann ,  Peter Schmitt ,  Michael Zenge

IPC: A61B5/055

CPC classification number: A61B5/0263 ,  A61B5/055 ,  A61B5/489 ,  G01R33/543 ,  G01R33/546 ,  G01R33/56316 ,  G01R33/5635

Abstract: In a method for flow measurement with a magnetic resonance system and a correspondingly designed magnetic resonance system angiography measurement data of a volume are obtained within a body to be examined, a vessel is determined depending on a user input by means of the angiography measurement data, dimensions and an orientation of the vessel are automatically determined from the angiography measurement data, a slice geometry for the flow measurement is automatically determined depending on the dimensions and the orientation, and the flow measurement is implemented using the slice geometry.

Abstract translation: 在使用磁共振系统和相应设计的磁共振系统进行流量测量的方法中，在待检查的体内获得体积的血管造影测量数据，根据用户输入通过血管造影测量数据确定血管， 根据血管造影测量数据自动确定容器的尺寸和取向，根据尺寸和取向自动确定流量测量的切片几何形状，并使用切片几何形状实现流量测量。

公开(公告)号：US20100063381A1

公开(公告)日：2010-03-11

申请号：US12498555

申请日：2009-07-07

Applicant: Andreas Greiser

Inventor： Andreas Greiser

IPC: A61B5/055 ,  A61B5/0408 ,  G06T7/00

CPC classification number: A61B5/061 ,  A61B5/0408 ,  A61B5/055 ,  A61B90/36 ,  A61B2090/374

Abstract: A method for determining an item of positioning information for ECG electrodes during an examination with a magnetic resonance facility is provided. An image data record of a region surrounding the heart of a patient and the electrodes arranged on the surface of the patient is recorded. A position of the longitudinal heart axis and a position of the electrodes in the image data record are determined. A target position suited to determining evaluable ECG signals is automatically calculated for each of the electrodes by considering the position of the longitudinal heart axis and a displacement from the position of the electrodes to the target position. An item of positioning information for the electrodes is displayed by taking the displacements into consideration.A clean copy of the abstract that incorporates the above amendments is provided herewith on a separate page.

Abstract translation: 提供了一种用于在用磁共振设备进行检查期间确定用于ECG电极的定位信息的项目的方法。 记录围绕患者心脏的区域和布置在患者表面上的电极的图像数据记录。 确定纵向心轴的位置和电极在图像数据记录中的位置。 通过考虑纵向心轴的位置和从电极的位置到目标位置的位移，自动地计算适合于确定可评估的ECG信号的目标位置。 通过考虑位移来显示用于电极的定位信息的项目。 包含上述修订的摘要的干净的副本将提供在单独的页面上。