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公开(公告)号：US20130249554A1
公开(公告)日：2013-09-26
申请号：US13990089
申请日：2011-11-28
IPC分类号： G01R33/58
CPC分类号： G01R33/583 , G01R33/4828 , G01R33/5607 , G01R33/56527
摘要： The invention relates to a method of MR imaging of at least a portion of a body (10) of a patient positioned in an examination volume of a MR device (1). It is an object of the invention to provide a method that enables improved fat saturation. The method of the invention comprises the steps of: subjecting the portion of the body (10) to a calibration sequence comprising RF pulses and switched magnetic field gradients controlled in such a manner that a calibration signal data set is acquired by means of a multi-point Dixon technique at a first image resolution; deriving calibration parameters from the calibration signal data set; subjecting the portion of the body (10) to an imaging sequence comprising RF pulses and switched magnetic field gradients controlled in such a manner that a diagnostic signal data set is acquired at a second image resolution which is higher than the first image resolution; and reconstructing a diagnostic MR image from the diagnostic signal data set, wherein the MR device (1) is operated according to the derived calibration parameters during acquisition of the diagnostic signal data set and/or during reconstruction of the diagnostic MR image. Moreover, the invention relates to a MR device (1) for carrying out the method and to a computer program to be run on a MR device (1).
摘要翻译： 本发明涉及一种定位在MR装置（1）的检查体积中的患者的身体（10）的至少一部分的MR成像方法。 本发明的目的是提供一种能够改善脂肪饱和度的方法。 本发明的方法包括以下步骤：使身体（10）的一部分经受包括RF脉冲和切换磁场梯度的校准序列，该校正序列以如下方式进行控制：校准信号数据集通过多 点Dixon技术在第一个图像分辨率; 从校准信号数据集导出校准参数; 使所述身体（10）的所述部分经受包括RF脉冲和切换磁场梯度的成像序列，所述成像序列以使得以比所述第一图像分辨率高的第二图像分辨率获取诊断信号数据集的方式被控制; 以及从所述诊断信号数据集重构诊断MR图像，其中在所述诊断信号数据集的获取期间和/或在所述诊断MR图像的重建期间，所述MR装置（1）根据所导出的校准参数进行操作。 此外，本发明涉及一种用于执行该方法的MR设备（1）和一个在MR设备（1）上运行的计算机程序。
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公开(公告)号：US09575154B2
公开(公告)日：2017-02-21
申请号：US13990089
申请日：2011-11-28
IPC分类号： G01R33/58 , G01R33/48 , G01R33/565 , G01R33/56
CPC分类号： G01R33/583 , G01R33/4828 , G01R33/5607 , G01R33/56527
摘要： At least a portion of a body (10) of a patient is positioned in an examination volume of a MR device (1). The portion of the body (10) is subject to a calibration sequence including RF pulses and switched magnetic field gradients controlled in such a manner that a calibration signal data set is acquired by a multi-point Dixon technique at a first image resolution. Calibration parameters are derived from the calibration signal data set. The portion of the body (10) is subject to an imaging sequence including RF pulses and switched magnetic field gradients controlled in such a manner that a diagnostic signal data set is acquired at a second image resolution which is higher than the first image resolution A diagnostic MR image is reconstructed from the diagnostic signal data set. The MR device (1) is operated according to the derived calibration parameters with fat saturation during acquisition of the diagnostic signal data set and/or during reconstruction of the diagnostic MR image.
摘要翻译： 患者的身体（10）的至少一部分位于MR装置（1）的检查体积中。 身体（10）的部分受到包括RF脉冲和切换磁场梯度的校准序列的控制，以使得通过多点Dixon技术以第一图像分辨率获取校准信号数据集。 校准参数来自校准信号数据集。 身体（10）的部分受到包括RF脉冲和切换磁场梯度的成像序列的控制，使得以比第一图像分辨率A诊断的第二图像分辨率获取诊断信号数据集 从诊断信号数据集重建MR图像。 在采集诊断信号数据组期间和/或在重建诊断MR图像期间，根据导出的具有脂肪饱和度的校准参数来操作MR装置（1）。
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公开(公告)号：US09575153B2
公开(公告)日：2017-02-21
申请号：US13990050
申请日：2011-11-24
IPC分类号： G01R33/385 , G01R33/58 , G01R33/48
CPC分类号： G01R33/583 , G01R33/385 , G01R33/4828
摘要： At least a portion of a body (10) of a patient positioned in an examination volume of a MR device (1). A portion of the body (10) is subject to a calibration sequence including RF pulses and switched magnetic field gradients controlled in such a manner that a calibration signal data set is acquired by a multi-point Dixon technique at a first image resolution. Calibration parameters are derived from the calibration signal data set. The MR device (1) is controlled according to the derived calibration parameters. The portion of the body (10) is subject to an imaging sequence including RF pulses and switched magnetic field gradients controlled in such a manner that a diagnostic signal data set is acquired at a second image resolution which is higher than the first image resolution. A diagnostic MR image is reconstructed from the diagnostic signal data set.
摘要翻译： 位于MR装置（1）的检查体积中的患者的身体（10）的至少一部分。 身体（10）的一部分经受包括RF脉冲和切换磁场梯度的校准序列，其以这样的方式进行控制，使得通过多点Dixon技术以第一图像分辨率获取校准信号数据集。 校准参数来自校准信号数据集。 MR装置（1）根据导出的校准参数进行控制。 身体（10）的部分受到包括RF脉冲和切换磁场梯度的成像序列的控制，使得以比第一图像分辨率高的第二图像分辨率获取诊断信号数据集。 从诊断信号数据集重建诊断MR图像。
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公开(公告)号：US08565505B2
公开(公告)日：2013-10-22
申请号：US13126274
申请日：2009-11-02
申请人： Cornelis Johannes Franciscus Maria Bergmans , Daniel Bystrov , Harald Sepp Heese , Marc Kouwenhoven , Johan Michiel Den Harder , Arjan Willem Simonetti , Wendy De Kok
发明人： Cornelis Johannes Franciscus Maria Bergmans , Daniel Bystrov , Harald Sepp Heese , Marc Kouwenhoven , Johan Michiel Den Harder , Arjan Willem Simonetti , Wendy De Kok
IPC分类号： G06K9/00
CPC分类号： G01R33/54 , G01R33/543 , G01R33/546 , G01R33/5608 , G01R33/56383
摘要： A method of acquiring at least one clinical MRI image of a subject comprising the following steps: acquiring a first survey image with a first field of view, the first survey image having a first spatial resolution,—locating a first region of interest and at least one anatomical landmarks in the first survey image, determining the position and the orientation of the first region of interest using the anatomical landmarks, the position and the orientation of the first region being used for—planning a second survey image,—acquiring the second survey image with a second field of view, the second survey image having a second spatial resolution, the second spatial resolution being higher than the first spatial resolution, generating a geometry planning for the anatomical region of interest using the second survey image,—acquiring a diagnostic image of the anatomical region of interest using the geometry planning.
摘要翻译： 一种获取对象的至少一个临床MRI图像的方法，包括以下步骤：获取具有第一视场的第一测量图像，所述第一测量图像具有第一空间分辨率， - 定位第一感兴趣区域并且至少 在第一调查图像中的一个解剖标记，使用解剖学标记确定第一感兴趣区域的位置和方向，第一区域的位置和取向用于计划第二调查图像， - 获取第二调查 具有第二视场的图像，所述第二测量图像具有第二空间分辨率，所述第二空间分辨率高于所述第一空间分辨率，使用所述第二测量图像生成所述感兴趣解剖区域的几何规划， - 获取诊断 使用几何规划的感兴趣解剖区域的图像。
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公开(公告)号：US20130249553A1
公开(公告)日：2013-09-26
申请号：US13990050
申请日：2011-11-24
IPC分类号： G01R33/58 , G01R33/385
CPC分类号： G01R33/583 , G01R33/385 , G01R33/4828
摘要： The invention relates to a method of MR imaging of at least a portion of a body (10) of a patient positioned in an examination volume of a MR device (1). It is an object of the invention to provide a method that enables improved fat saturation. The method of the invention comprises the steps of:—subjecting the portion of the body (10) to a calibration sequence comprising RF pulses and switched magnetic field gradients controlled in such a manner that a calibration signal data set is acquired by means of a multi-point Dixon technique at a first image resolution;—deriving calibration parameters from the calibration signal data set;—controlling the MR device (1) according to the derived calibration parameters;—subjecting the portion of the body (10) to an imaging sequence comprising RF pulses and switched magnetic field gradients controlled in such a manner that a diagnostic signal data set is acquired at a second image resolution which is higher than the first image resolution; and—reconstructing a diagnostic MR image from the diagnostic signal data set. Moreover, the invention relates to a MR device (1) for carrying out the method and to a computer program to be run on a MR device (1).
摘要翻译： 本发明涉及一种定位在MR装置（1）的检查体积中的患者的身体（10）的至少一部分的MR成像方法。 本发明的目的是提供一种能够改善脂肪饱和度的方法。 本发明的方法包括以下步骤： - 将身体（10）的部分施加到包括RF脉冲和切换磁场梯度的校准序列，该校准序列以如下方式进行控制：校准信号数据集通过多 在第一图像分辨率下的Dixon技术; - 从校准信号数据集得到校准参数; - 根据导出的校准参数控制MR装置（1）; - 将身体（10）的部分投射到成像序列 包括以这样的方式控制的RF脉冲和切换磁场梯度，使得以比第一图像分辨率高的第二图像分辨率获取诊断信号数据集; 并从诊断信号数据集重建诊断MR图像。 此外，本发明涉及一种用于执行该方法的MR设备（1）和一个在MR设备（1）上运行的计算机程序。
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公开(公告)号：US20110206260A1
公开(公告)日：2011-08-25
申请号：US13126274
申请日：2009-11-02
申请人： Cornelis Johannes Franciscus Maria Bergmans , Daniel Bystrov , Harald Sepp Heese , Marc Kouwenhoven , Johan Michiel Den Harder , Arjan Willem Simonetti , Wendy De Kok
发明人： Cornelis Johannes Franciscus Maria Bergmans , Daniel Bystrov , Harald Sepp Heese , Marc Kouwenhoven , Johan Michiel Den Harder , Arjan Willem Simonetti , Wendy De Kok
IPC分类号： G06K9/00
CPC分类号： G01R33/54 , G01R33/543 , G01R33/546 , G01R33/5608 , G01R33/56383
摘要： A method of acquiring at least one clinical MRI image of a subject comprising the following steps: acquiring a first survey image with a first field of view, the first survey image having a first spatial resolution,—locating a first region of interest and at least one anatomical landmarks in the first survey image, determining the position and the orientation of the first region of interest using the anatomical landmarks, the position and the orientation of the first region being used for—planning a second survey image,—acquiring the second survey image with a second field of view, the second survey image having a second spatial resolution, the second spatial resolution being higher than the first spatial resolution, generating a geometry planning for the anatomical region of interest using the second survey image,—acquiring a diagnostic image of the anatomical region of interest using the geometry planning.
摘要翻译： 一种获取对象的至少一个临床MRI图像的方法，包括以下步骤：获取具有第一视场的第一测量图像，所述第一测量图像具有第一空间分辨率， - 定位第一感兴趣区域并且至少 在第一调查图像中的一个解剖标记，使用解剖学标记确定第一感兴趣区域的位置和方向，第一区域的位置和取向用于计划第二调查图像， - 获取第二调查 具有第二视场的图像，所述第二测量图像具有第二空间分辨率，所述第二空间分辨率高于所述第一空间分辨率，使用所述第二测量图像生成所述感兴趣解剖区域的几何规划， - 获取诊断 使用几何规划的感兴趣解剖区域的图像。
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