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1. 发明授权

US07706855B1 System and method for MR data acquisition with uniform fat suppression 失效
标题翻译：具有均匀脂肪抑制的MR数据采集系统和方法
公开(公告)号：US07706855B1
公开(公告)日：2010-04-27
申请号：US10710555
申请日：2004-07-20
申请人： Agus Priatna , Anthony T. Vu , Xiaoli Zhao
发明人： Agus Priatna , Anthony T. Vu , Xiaoli Zhao
IPC分类号： A61B5/05
CPC分类号： A61B5/055 , G01R33/4828 , G01R33/5602 , G01R33/5607 , G01R33/5608 , G01R33/56308
摘要： A system and method of MR imaging is disclosed that includes reconstruction of MR images with uniform or homogeneous fat suppression. An imaging process is performed using partial asymmetric acquisitions in conjunction with zero-filling of k-space for dynamic contrast-enhanced imaging. Data acquisition is carried out in a relatively short period of time which reduces scan time, reduces the likelihood of subject discomfort and motion-induced artifacts, and increases patient throughput.
摘要翻译：公开了一种MR成像的系统和方法，其包括具有均匀或均匀脂肪抑制的MR图像的重建。使用部分非对称采集与用于动态对比度增强成像的k空间的零填充来执行成像处理。数据采集在相对短的时间内进行，这减少了扫描时间，降低了受试者不适和运动诱发的伪像的可能性，并增加了患者的吞吐量。

2. 发明授权

US08143891B2 System for image acquisition with fast magnetic resonance gradient echo sequences 有权
标题翻译：用快速磁共振梯度回波序列进行图像采集的系统
公开(公告)号：US08143891B2
公开(公告)日：2012-03-27
申请号：US12504789
申请日：2009-07-17
申请人： Agus Priatna , Stephan Kannengieβer
发明人： Agus Priatna , Stephan Kannengieβer
IPC分类号： G01V3/00
CPC分类号： G01R33/561 , G01R33/5613 , G01R33/56509
摘要： A system uses a three-dimensional spoiled gradient recalled echo sequence for fat suppression with reduced total acquisition time suitable for acquiring image data under breath-hold conditions using a reversed asymmetry during data acquisition on an opposed phase echo. A system reduces RF pulse repetition time in an MR imaging pulse sequence in an MR imaging device. The system includes an RF pulse generator for generating an RF excitation pulse sequence having a pulse repetition interval. A read-out gradient magnetic field generator generates an asymmetric read-out gradient magnetic field having a readout gradient mid-point occurring prior to an RF echo pulse peak. The RF echo pulse peak is received in response to a generated RF excitation pulse.
摘要翻译：系统使用三维损坏梯度回归序列进行脂肪抑制，减少总采集时间，适用于在相对相位回波数据采集期间使用逆向不对称，在呼吸保持条件下获取图像数据。一种系统降低MR成像装置中的MR成像脉冲序列中的RF脉冲重复时间。该系统包括用于产生具有脉冲重复间隔的RF激励脉冲序列的RF脉冲发生器。读出梯度磁场发生器产生具有在RF回波脉冲峰值之前出现的读出梯度中点的非对称读出梯度磁场。响应于产生的RF激励脉冲接收RF回波脉冲峰值。

3. 发明申请

US20100052675A1 System for Image Acquisition With Fast Magnetic Resonance Gradient Echo Sequences 有权
标题翻译：用快速磁共振梯度回波序列进行图像采集的系统
公开(公告)号：US20100052675A1
公开(公告)日：2010-03-04
申请号：US12504789
申请日：2009-07-17
申请人： Agus Priatna , Stephan Kannengiesser
发明人： Agus Priatna , Stephan Kannengiesser
IPC分类号： G01R33/48
CPC分类号： G01R33/561 , G01R33/5613 , G01R33/56509
摘要： A system uses a three-dimensional spoiled gradient recalled echo sequence for fat suppression with reduced total acquisition time suitable for acquiring image data under breath-hold conditions using a reversed asymmetry during data acquisition on an opposed phase echo. A system reduces RF pulse repetition time in an MR imaging pulse sequence in an MR imaging device. The system includes an RF pulse generator for generating an RF excitation pulse sequence having a pulse repetition interval. A read-out gradient magnetic field generator generates an asymmetric read-out gradient magnetic field having a readout gradient mid-point occurring prior to an RF echo pulse peak. The RF echo pulse peak is received in response to a generated RF excitation pulse.
摘要翻译：系统使用三维损坏梯度回归序列进行脂肪抑制，减少总采集时间，适用于在相对相位回波数据采集期间使用逆向不对称，在呼吸保持条件下获取图像数据。一种系统降低MR成像装置中的MR成像脉冲序列中的RF脉冲重复时间。该系统包括用于产生具有脉冲重复间隔的RF激励脉冲序列的RF脉冲发生器。读出梯度磁场发生器产生具有在RF回波脉冲峰值之前出现的读出梯度中点的非对称读出梯度磁场。响应于产生的RF激励脉冲接收RF回波脉冲峰值。

4. 发明授权

US06904306B1 Method and apparatus for evaluation of contrast agent uptake based on derived parametric images 失效
标题翻译：基于导出的参数图像评估造影剂摄取的方法和装置
公开(公告)号：US06904306B1
公开(公告)日：2005-06-07
申请号：US10055274
申请日：2002-01-23
申请人： Dee H. Wu , Sara M. Oberrecht , Sara Hagey , Agus Priatna , David L. Foxall
发明人： Dee H. Wu , Sara M. Oberrecht , Sara Hagey , Agus Priatna , David L. Foxall
IPC分类号： G01R33/28 , A61B5/055 , G01R33/48 , G01R33/54
CPC分类号： A61B5/055 , A61B5/7289 , A61B5/7292
摘要： A magnetic resonance imaging (MRI) apparatus (10) acquires a plurality of parametric images (60) with at least one varying imaging parameter. A parametric map (62) is constructed from the plurality of parametric images (60). At least one pilot parameter (64) is identified from at least the parametric map (62). The at least one identified pilot parameter (64) includes at least a volume of interest for a diagnostic image. A contrast agent (54) is administered to the patient (18). The identified volume of interest is imaged during influx of the administered contrast agent (54) into the identified volume of interest. The imaging uses the at least one identified pilot parameter (64).
摘要翻译：磁共振成像（MRI）装置（10）使用至少一个变化的成像参数来获取多个参数图像（60）。由多个参数图像（60）构成参数图（62）。从至少参数图（62）识别出至少一个导频参数（64）。所述至少一个识别的导频参数（64）至少包括用于诊断图像的感兴趣的体积。向患者（18）施用造影剂（54）。将所识别的感兴趣体积在所给予的造影剂（54）流入所识别的感兴趣体积内成像。成像使用至少一个识别的导频参数（64）。

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