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1. 发明授权

US09575153B2 MR imaging using a multi-point dixon technique 有权
标题翻译：使用多点狄克逊技术的MR成像
公开(公告)号：US09575153B2
公开(公告)日：2017-02-21
申请号：US13990050
申请日：2011-11-24
申请人： Arjan Willem Simonetti , Gwenael Henri Herigault , Peter Boernert
发明人： Arjan Willem Simonetti , Gwenael Henri Herigault , Peter Boernert
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。

2. 发明申请

US20130249553A1 MR IMAGING USING A MULTI-POINT DIXON TECHNIQUE 有权
标题翻译：使用多点DIXON技术的成像
公开(公告)号：US20130249553A1
公开(公告)日：2013-09-26
申请号：US13990050
申请日：2011-11-24
申请人： Arjan Willem Simonetti , Gwenael Henri Herigault , Peter Boernert
发明人： Arjan Willem Simonetti , Gwenael Henri Herigault , Peter Boernert
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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