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1. 发明申请

US20080275329A1 Diffusion weighted preparatory sequence for magnetic resonance imaging pulse sequence 有权
标题翻译：磁共振成像脉冲序列扩散加权准备序列
公开(公告)号：US20080275329A1
公开(公告)日：2008-11-06
申请号：US11800374
申请日：2007-05-04
申请人： Scott B. Reeder , Reed Busse , Jean H. Brittain
发明人： Scott B. Reeder , Reed Busse , Jean H. Brittain
IPC分类号： A61B5/055
CPC分类号： G01R33/56341
摘要： A preparatory pulse sequence is applied prior to an imaging pulse sequence during a diffusion-weighted MRI scan. The preparatory pulse sequence diffusion weights the longitudinal magnetization using a gradient waveform that is first moment nulled to reduce image artifacts caused by patient motion.
摘要翻译：在扩散加权MRI扫描期间，在成像脉冲序列之前应用预备脉冲序列。准备脉冲序列扩散使用一个梯度波形对纵向磁化进行加权，该波形首先被归零，以减少由患者运动引起的图像伪影。

2. 发明申请

US20050001617A1 Method and apparatus to reduce RF power in high field MR imaging incorporating multi-phase RF pulse flip angles 有权
标题翻译：包含多相RF脉冲翻转角的高场MR成像中降低RF功率的方法和装置
公开(公告)号：US20050001617A1
公开(公告)日：2005-01-06
申请号：US10612596
申请日：2003-07-02
申请人： Reed Busse
发明人： Reed Busse
IPC分类号： G01R33/48 , A61B5/055 , G01R33/561 , G01V3/00
CPC分类号： G01R33/5613
摘要： A technique is set forth that is designed to reduce RF induced power in high field MR imaging that includes application of an initial contrast preserving phase of RF pulses. These initial RF pulses are designed to have a constant, relatively high flip angle over the initial contrast preserving phase. Following an effective TE, a ramp down phase is applied that has a limited number of RF pulses with a flip angle that is less than the flip angle of those in the initial contrast preserving phase. Further, the RF pulses in the ramp down phase have a flip angle that is decreased over the ramp down phase. This technique provides improved resolution and steady contrast and SNR, while significantly reducing induced RF power.
摘要翻译：已经提出了一种技术，其被设计为在高场MR成像中降低射频感应功率，包括应用RF脉冲的初始对比度保持相位。这些初始RF脉冲被设计为在初始对比度保持相位上具有恒定的相对较高的翻转角。在有效TE之后，施加斜坡下降相位，其具有有限数量的RF脉冲，其具有小于初始对比度保持阶段中的翻转角的翻转角。此外，斜坡下降阶段中的RF脉冲具有在斜坡下降相位上减小的翻转角。该技术提供了改进的分辨率和稳定的对比度和SNR，同时显着降低了感应RF功率。

3. 发明授权

US07804299B2 Diffusion weighted preparatory sequence for magnetic resonance imaging pulse sequence 有权
标题翻译：磁共振成像脉冲序列扩散加权准备序列
公开(公告)号：US07804299B2
公开(公告)日：2010-09-28
申请号：US11800374
申请日：2007-05-04
申请人： Scott B. Reeder , Reed Busse , Jean H. Brittain
发明人： Scott B. Reeder , Reed Busse , Jean H. Brittain
IPC分类号： G01V3/00
CPC分类号： G01R33/56341
摘要： A preparatory pulse sequence is applied prior to an imaging pulse sequence during a diffusion-weighted MRI scan. The preparatory pulse sequence diffusion weights the longitudinal magnetization using a gradient waveform that is first moment nulled to reduce image artifacts caused by patient motion.
摘要翻译：在扩散加权MRI扫描期间，在成像脉冲序列之前应用预备脉冲序列。准备脉冲序列扩散使用一个梯度波形对纵向磁化进行加权，该波形首先被归零，以减少由患者运动引起的图像伪影。

4. 发明申请

US20060267584A1 METHOD FOR GENERATING T1-WEIGHTED MAGNETIC RESONANCE IMAGES AND QUANTITATIVE T1 MAPS 有权
标题翻译：用于产生T1加权磁共振图像和定量T1图像的方法
公开(公告)号：US20060267584A1
公开(公告)日：2006-11-30
申请号：US11136194
申请日：2005-05-24
申请人： Reed Busse , John Pauly , Greg Zaharchuk
发明人： Reed Busse , John Pauly , Greg Zaharchuk
IPC分类号： G01V3/00
CPC分类号： G01R33/50 , G01R33/5615 , G01R33/5617
摘要： Methods and systems for generating T1-weighted images are provided. The method includes acquiring a pair of single-shot fast-spin-echo (SSFSE) images S1 and S2. The method further includes generating a T1-weighted image ST1w based on S1 and S2.
摘要翻译：提供了生成T 1加权图像的方法和系统。该方法包括获取一对单次快速自旋回波（SSFSE）图像S 1和S 2 2。该方法还包括基于S 1和S 2 2生成T 1加权图像S T1W1。

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