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11. 发明申请

US20110141102A1 SYSTEM AND METHOD OF VISUALIZING FEATURES IN AN IMAGE 有权
标题翻译：在图像中可视化特征的系统和方法
公开(公告)号：US20110141102A1
公开(公告)日：2011-06-16
申请号：US12635879
申请日：2009-12-11
申请人： John Skinner , Sandeep Dutta , Bernice E. Hoppel
发明人： John Skinner , Sandeep Dutta , Bernice E. Hoppel
IPC分类号： G06T15/00 , G06K9/00
CPC分类号： G06T11/206 , G06T11/008 , G06T19/00
摘要： An imaging system includes a detector configured to receive data that can be reconstructed into a three-dimensional (3D) image of an object, and a computer programmed to obtain 3D image data of the object, the 3D image data including an internal structure of the object, define a longitudinal dimension of the internal structure from the 3D image data along a length of the structure, extract a first set of parameter-of-interest data related to the internal structure from the 3D image data along a first ray extending from a first location along the length of the structure and at a first angular orientation with respect to a base vector that is generally perpendicular to the longitudinal dimension, and plot the extracted first set of parameter-of-interest data at a pixel location of a two-dimensional (2D) plot that corresponds to the first location and corresponds to the first angular orientation.
摘要翻译：成像系统包括检测器，其被配置为接收可以被重构成物体的三维（3D）图像的数据，以及被编程为获得对象的3D图像数据的计算机，3D图像数据包括内部结构对象，沿着结构的长度从3D图像数据定义内部结构的纵向维度，沿着从3D图像数据延伸的第一射线从3D图像数据提取与内部结构相关的第一组感兴趣参数数据沿着结构长度的第一位置和相对于大致垂直于纵向尺寸的基本向量以第一角度取向，并且将所提取的第一组感兴趣参数数据绘制在二维图像的像素位置处，对应于第一位置并对应于第一角度取向的二维（2D）绘图。

12. 发明授权

US07012428B1 Method and apparatus of reducing artifacts in phase-cycled steady-state free precession imaging 失效
标题翻译：减少相位循环稳态自由进动成像中伪像的方法和装置
公开(公告)号：US07012428B1
公开(公告)日：2006-03-14
申请号：US10707483
申请日：2003-12-17
申请人： Heidi A. Ward , Bernice E. Hoppel
发明人： Heidi A. Ward , Bernice E. Hoppel
IPC分类号： G01V3/00
CPC分类号： G01R33/5613 , G01R33/56509
摘要： A method and apparatus of imaging multiple volumes of the anatomy of interest using a phase-cycled SSFP pulse sequence and a reverse elliptic centric view ordering to sample a first volume and an elliptic centric view ordering to sample a second volume is disclosed. Dummy acquisitions are played out between imaging of the first and second volumes, and the time to play out the dummy acquisitions is used to change the phase-cycling scheme of the RF pulses of the SSFP pulse sequence. Oscillations in signal are reduced as the spins in the anatomy of interest are brought to a new steady-state by gradually ramping the RF pulse phase increment for acquisition from the first volume to the RF pulse phase increment for acquisition from the second volume. The present invention is effective for reducing transient oscillations in MR signals from resonance and off-resonance spins, thus enabling the use of this technique for the reduction of motion artifacts in phase-cycled SSFP.
摘要翻译：公开了一种使用相循环的SSFP脉冲序列和反向椭圆中心视图来对感兴趣的解剖结构进行成像的多个体积的方法和装置，其顺序是对第一体积进行采样和以椭圆为中心的视图排序来采样第二体积。在第一和第二体积的成像之间进行虚拟采集，并且使用播放伪采集的时间来改变SSFP脉冲序列的RF脉冲的相位循环方案。当感兴趣的解剖结构中的旋转通过逐渐地将用于从第一体积获取的RF脉冲相位增量逐渐斜升到RF脉冲相位增量以从第二体积获取时，信号中的振荡被减小。本发明对于减少来自谐振和非共振自旋的MR信号的瞬态振荡是有效的，因此能够使用这种技术来减少相循环SSFP中的运动伪影。

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