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1. 发明申请

US20070249929A1 Systems and methods for magnetic resonance imaging 失效
标题翻译：用于磁共振成像的系统和方法
公开(公告)号：US20070249929A1
公开(公告)日：2007-10-25
申请号：US11732382
申请日：2007-04-02
申请人： Eun-Kee Jeong , Dennis Parker , Kim Choi , Evgueni Kholmovski
发明人： Eun-Kee Jeong , Dennis Parker , Kim Choi , Evgueni Kholmovski
IPC分类号： A61B5/05
CPC分类号： A61B5/055 , G01R33/4806 , G01R33/5615 , G01R33/5616 , G01R33/56341 , G01R33/56509 , G01R33/56536 , G01R33/5676
摘要： Methods and apparatus for operating an MRI system is provided. The disclosure provides a diffusion-prepared driven-equilibrium preparation for an imaging volume and acquiring 3-dimensional k-space data from said prepared volume by a plurality of echoplanar readouts of stimulated echoes. An excitation radio-frequency signal and first and second inversion RF signals are provided to define a field-of-view (FOV).
摘要翻译：提供了用于操作MRI系统的方法和装置。本公开提供了用于成像体积的扩散制备的驱动平衡准备并且通过多个受激回波的回波平面读出从所述准备的体积获取三维k空间数据。激励射频信号和第一和第二反转RF信号被提供以定义视野（FOV）。

2. 发明申请

US20100213938A1 SIMULTANEOUS ACQUISITIONS OF SPIN- AND STIMULATED-ECHO PLANAR IMAGING 有权
标题翻译：旋转和刺激式ECHO平面成像的同时采集
公开(公告)号：US20100213938A1
公开(公告)日：2010-08-26
申请号：US12392072
申请日：2009-02-24
申请人： Eun-Kee Jeong , Kim Seongeun Choi , Xianfeng Shi
发明人： Eun-Kee Jeong , Kim Seongeun Choi , Xianfeng Shi
IPC分类号： G01R33/48
CPC分类号： G01R33/5616 , G01R33/4804 , G01R33/50 , G01R33/5659
摘要： The disclosure provides echo planar imaging (EPI) based single-shot imaging techniques for acquiring spin-EPI (SEPI) and stimulated-EPI after a single RF excitation. In certain embodiments, the SEPI and STEPI acquired in a singleshot are used to compute a T1 map in realtime, which can be used for realtime monitoring of concentrations of paramagnetic-ion based contrast agent in dynamic contrast enhanced MRI. In certain embodiments, B1 field inhomogeneity correction is provided for the STEPI. In certain embodiments, a gradient-EPI (GEPI) is also acquired after the single RF excitation providing singleshot SEPI, GEPI and STEPI acquisition. In certain embodiments, the phase difference between the SEPI and GEPI is used to compute temperature-dependent chemical shift in a subject in realtime. The temperature-dependent chemical shift can be used to monitor temperature changes in the subject in realtime, for example, during a heat treatment to control the dosage of heat energy.
摘要翻译：本公开提供基于回波平面成像（EPI）的单次成像技术，用于在单次RF激发之后获取旋转EPI（SEPI）和刺激EPI。在某些实施例中，使用单打拍摄的SEPI和STEPI实时计算T1图，其可用于实时监测动态对比增强MRI中顺磁离子基造影剂的浓度。在某些实施例中，对于STEPI提供B1场不均匀性校正。在某些实施方案中，在单次RF激发提供单打SEPI，GEPI和STEPI采集之后也获得梯度EPI（GEPI）。在某些实施方案中，SEPI和GEPI之间的相位差被用于实时地计算受试者中温度依赖的化学位移。温度依赖性化学位移可用于实时监测受试者的温度变化，例如在热处理期间控制热能的剂量。

3. 发明申请

US20130158384A1 Systems and Methods for Magnetic Resonance Imaging 有权
标题翻译：磁共振成像系统与方法
公开(公告)号：US20130158384A1
公开(公告)日：2013-06-20
申请号：US13769917
申请日：2013-02-19
申请人： Eun-Kee Jeong , Dennis L. Parker , Kim Seong-Eun Choi , Evgueni G. Kholmovski
发明人： Eun-Kee Jeong , Dennis L. Parker , Kim Seong-Eun Choi , Evgueni G. Kholmovski
IPC分类号： A61B5/055
CPC分类号： A61B5/055 , G01R33/4806 , G01R33/5615 , G01R33/5616 , G01R33/56341 , G01R33/56509 , G01R33/56536 , G01R33/5676
摘要： Methods and apparatus for operating an MRI system is provided. The disclosure provides a diffusion-prepared driven-equilibrium preparation for an imaging volume and acquiring 3-dimensional k-space data from said prepared volume by a plurality of echoplanar readouts of stimulated echoes. An excitation radio-frequency signal and first and second inversion RF signals are provided to define a field-of-view (FOV).
摘要翻译：提供了用于操作MRI系统的方法和装置。本公开提供了用于成像体积的扩散制备的驱动平衡准备并且通过多个受激回波的回波平面读出从所述准备的体积获取三维k空间数据。激励射频信号和第一和第二反转RF信号被提供以定义视野（FOV）。

4. 发明授权

US09770186B2 Systems and methods for magnetic resonance imaging 有权
公开(公告)号：US09770186B2
公开(公告)日：2017-09-26
申请号：US13769917
申请日：2013-02-19
申请人： Eun-Kee Jeong , Dennis L Parker , Kim Seong-Eun Choi , Evgueni G Kholmovski
发明人： Eun-Kee Jeong , Dennis L Parker , Kim Seong-Eun Choi , Evgueni G Kholmovski
IPC分类号： G01R33/56 , A61B5/055 , G01R33/561 , G01R33/563 , G01R33/565 , G01R33/567 , G01R33/48
CPC分类号： A61B5/055 , G01R33/4806 , G01R33/5615 , G01R33/5616 , G01R33/56341 , G01R33/56509 , G01R33/56536 , G01R33/5676
摘要： Methods and apparatus for operating an MRI system is provided. The disclosure provides a diffusion-prepared driven-equilibrium preparation for an imaging volume and acquiring 3-dimensional k-space data from said prepared volume by a plurality of echoplanar readouts of stimulated echoes. An excitation radio-frequency signal and first and second inversion RF signals are provided to define a field-of-view (FOV).

5. 发明授权

US08406849B2 Systems and methods for magnetic resonance imaging 失效
标题翻译：用于磁共振成像的系统和方法
公开(公告)号：US08406849B2
公开(公告)日：2013-03-26
申请号：US11732382
申请日：2007-04-02
申请人： Eun-Kee Jeong , Dennis L. Parker , Kim Seong-Eun Choi , Evgueni G. Kholmovski
发明人： Eun-Kee Jeong , Dennis L. Parker , Kim Seong-Eun Choi , Evgueni G. Kholmovski
IPC分类号： A61B5/05
CPC分类号： A61B5/055 , G01R33/4806 , G01R33/5615 , G01R33/5616 , G01R33/56341 , G01R33/56509 , G01R33/56536 , G01R33/5676
摘要： Methods and apparatus for operating an MRI system is provided. The disclosure provides a diffusion-prepared driven-equilibrium preparation for an imaging volume and acquiring 3-dimensional k-space data from said prepared volume by a plurality of echoplanar readouts of stimulated echoes. An excitation radio-frequency signal and first and second inversion RF signals are provided to define a field-of-view (FOV).
摘要翻译：提供了用于操作MRI系统的方法和装置。本公开提供了用于成像体积的扩散制备的驱动平衡准备并且通过多个受激回波的回波平面读出从所述准备的体积获取三维k空间数据。激励射频信号和第一和第二反转RF信号被提供以定义视野（FOV）。

6. 发明授权

US08143889B2 Simultaneous acquisitions of spin- and stimulated-echo planar imaging 有权
标题翻译：同时采集自旋和刺激回波平面成像
公开(公告)号：US08143889B2
公开(公告)日：2012-03-27
申请号：US12392072
申请日：2009-02-24
申请人： Eun-Kee Jeong , Kim Seongeun Choi , Xianfeng Shi
发明人： Eun-Kee Jeong , Kim Seongeun Choi , Xianfeng Shi
IPC分类号： G01V3/00 , A61B5/05
CPC分类号： G01R33/5616 , G01R33/4804 , G01R33/50 , G01R33/5659
摘要： The disclosure provides echo planar imaging (EPI) based single-shot imaging techniques for acquiring spin-EPI (SEPI) and stimulated-EPI after a single RF excitation. In certain embodiments, the SEPI and STEPI acquired in a singleshot are used to compute a T1 map in realtime, which can be used for realtime monitoring of concentrations of paramagnetic-ion based contrast agent in dynamic contrast enhanced MRI. In certain embodiments, B1 field inhomogeneity correction is provided for the STEPI. In certain embodiments, a gradient-EPI (GEPI) is also acquired after the single RF excitation providing singleshot SEPI, GEPI and STEPI acquisition. In certain embodiments, the phase difference between the SEPI and GEPI is used to compute temperature-dependent chemical shift in a subject in realtime. The temperature-dependent chemical shift can be used to monitor temperature changes in the subject in realtime, for example, during a heat treatment to control the dosage of heat energy.
摘要翻译：本公开提供基于回波平面成像（EPI）的单次成像技术，用于在单次RF激发之后获取旋转EPI（SEPI）和刺激EPI。在某些实施例中，使用单打拍摄的SEPI和STEPI实时计算T1图，其可用于实时监测动态对比增强MRI中顺磁离子基造影剂的浓度。在某些实施例中，对于STEPI提供B1场不均匀性校正。在某些实施方案中，在单次RF激发提供单打SEPI，GEPI和STEPI采集之后也获得梯度EPI（GEPI）。在某些实施方案中，SEPI和GEPI之间的相位差被用于实时地计算受试者中温度依赖的化学位移。温度依赖性化学位移可用于实时监测受试者的温度变化，例如在热处理期间控制热能的剂量。

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