公开(公告)号：US07583992B2

公开(公告)日：2009-09-01

申请号：US10485433

申请日：2001-03-16

申请人： Charles A. Mistretta ,  Yousef Mazaheri ,  Timothy J. Carroll ,  Jiang Du

发明人： Charles A. Mistretta ,  Yousef Mazaheri ,  Timothy J. Carroll ,  Jiang Du

IPC分类号： A61B5/05

CPC分类号： G01R33/563 ,  G01R33/281

摘要： A magnetic resonance angiogram (MRA) is acquired using a contrast enhancement method in which a series of NMR images are rapidly acquired during a time resolved phase of the examination in which the contrast bolus makes a first pass through the arteries and veins. Arterial and venous voxels are automatically identified in the images using either of two disclosed methods. The signals from identified arterial voxels are used to produce an arterial contrast enhancement reference curve that is used to segment arterial voxels by a correlation process. Venous voxels are segmented in the same manner using a calculated venous contrast enhancement reference curve.

摘要翻译： 使用对比度增强方法获得磁共振血管造影（MRA），其中在检查的时间分辨阶段期间快速获取一系列NMR图像，其中对比剂推注首先通过动脉和静脉。 使用两种公开的方法之一，在图像中自动识别动脉和静脉体素。 来自确定的动脉体素的信号用于产生用于通过相关过程分割动脉体素的动脉造影增强参考曲线。 使用计算的静脉造影增强参考曲线以相同的方式分割静脉体素。

公开(公告)号：US06556856B1

公开(公告)日：2003-04-29

申请号：US09664152

申请日：2000-09-18

申请人： Charles A. Mistretta ,  Thomas M. Grist ,  Yousef Mazahheri ,  Timothy J. Carroll ,  Jiang Du ,  Walter Block

发明人： Charles A. Mistretta ,  Thomas M. Grist ,  Yousef Mazahheri ,  Timothy J. Carroll ,  Jiang Du ,  Walter Block

IPC分类号： A61B5055

CPC分类号： G01R33/5635 ,  G01R33/5619

摘要： A magnetic resonance angiogram (MRA) is acquired using a contrast enhancement method in which a series of low resolution NMR images are rapidly acquired during a time resolved phase of the examination in which the contrast bolus makes a first pass through the arteries and veins. Additional, high spatial resolution NMR image data is acquired in a subsequent steady-state phase of the examination. The low resolution NMR image is segmented and masked to depict only arteries, and the central k-space region of this data is combined with the peripheral k-space data portion of the high resolution NMR data to produce one or more images.

摘要翻译： 使用对比度增强方法获得磁共振血管造影（MRA），其中在检查的时间分辨阶段期间快速获取一系列低分辨NMR图像，其中对比剂推注首先通过动脉和静脉。 此外，在随后的检查的稳态阶段获取高空间分辨率NMR图像数据。 低分辨率NMR图像被分割和掩蔽以仅描绘动脉，并且该数据的中心k空间区域与高分辨率NMR数据的外围k空间数据部分组合以产生一个或多个图像。

公开(公告)号：US08890659B2

公开(公告)日：2014-11-18

申请号：US12740635

申请日：2008-07-15

申请人： Hongai Jiao ,  Jian Zhang ,  Jiang Du

发明人： Hongai Jiao ,  Jian Zhang ,  Jiang Du

IPC分类号： H04Q5/22 ,  G06K7/10 ,  G06K7/00

CPC分类号： G06K7/0008 ,  G06K7/10019

摘要： The method includes: a reader begins to count the tags, and waits for feedback of the tags; the tags are split into two subsets if the tags feedback the collision, the tags of one of the subsets feedback, the tags of the other subset begin to feedback when the tags of one of the subsets complete the count; when the collision occurs in the course of feedback, then the split continues until all the tags are completed the count; the tags of many branches are at least once split simultaneously when the tags of the subsets are split.

摘要翻译： 该方法包括：读者开始对标签进行计数，并等待标签的反馈; 如果标签反馈冲突，则一个子集反馈的标签，另一个子集的标签在其中一个子集的标签完成计数时开始反馈，则将标签分成两个子集; 当在反馈过程中发生碰撞时，分裂继续，直到所有标签完成计数; 当子集的标签被拆分时，许多分支的标签至少一次分割。

公开(公告)号：US08742757B2

公开(公告)日：2014-06-03

申请号：US13399992

申请日：2012-02-17

申请人： Jiang Du

发明人： Jiang Du

IPC分类号： G01V3/00

CPC分类号： G01R33/5619 ,  G01R33/4824 ,  G01R33/5601 ,  G01R33/56325 ,  G01R33/5635

摘要： Methods, systems, and apparatus for magnetic resonance imaging (MRI) are described. In one example, the method includes applying a sample-selective magnetic field gradient sequence along a slice direction to partition responses from a sample under magnetic resonance imaging into a plurality of different regions of slices in the k space, applying spiral readout gradients to the sample to obtain echo data from the sample, and applying a Time Resolved Imaging of Contrast Kinetics imaging technique to sample the different regions of slices in the k space.

摘要翻译： 描述了用于磁共振成像（MRI）的方法，系统和装置。 在一个示例中，该方法包括沿着切片方向施加样本选择磁场梯度序列以将来自磁共振成像处的样本的响应分配到k空间中的多个不同的切片区域，将螺旋读出梯度应用于样本 从样本获得回波数据，并应用时间分辨成像的对比动力学成像技术对k空间中切片的不同区域进行采样。

公开(公告)号：US08120358B2

公开(公告)日：2012-02-21

申请号：US11735415

申请日：2007-04-13

申请人： Jiang Du

发明人： Jiang Du

IPC分类号： G01V3/00

CPC分类号： G01R33/5619 ,  G01R33/4824 ,  G01R33/5601 ,  G01R33/56325 ,  G01R33/5635

摘要： Methods, systems, and apparatus for magnetic resonance imaging (MRI) are described. In one example, the method includes applying a sample-selective magnetic field gradient sequence along a slice direction to partition responses from a sample under magnetic resonance imaging into a plurality of different regions of slices in the k space, applying spiral readout gradients to the sample to obtain echo data from the sample, and applying a Time Resolved Imaging of Contrast Kinetics imaging technique to sample the different regions of slices in the k space.

摘要翻译： 描述了用于磁共振成像（MRI）的方法，系统和装置。 在一个示例中，该方法包括沿着切片方向施加样本选择磁场梯度序列以将来自磁共振成像处的样本的响应分配到k空间中的多个不同的切片区域，将螺旋读出梯度应用于样本 从样本获得回波数据，并应用时间分辨成像的对比动力学成像技术对k空间中切片的不同区域进行采样。

公开(公告)号：US20130179025A1

公开(公告)日：2013-07-11

申请号：US13805445

申请日：2010-06-23

申请人： Bing Deng ,  Jiang Du

发明人： Bing Deng ,  Jiang Du

IPC分类号： G08G1/00

CPC分类号： G08G1/00 ,  B60W30/165 ,  B60W30/18154 ,  B60W50/0098 ,  B60W2050/008 ,  B60W2550/408 ,  G08G1/07

摘要： A method for controlling vehicle procession through an intersection includes monitoring movement of a first vehicle through the intersection, and synchronizing movement of a second vehicle following the first vehicle through the intersection to the first vehicle movement through the intersection.

摘要翻译： 用于通过交叉路口控制车辆行动的方法包括监视第一车辆通过交叉路口的移动，并且使通过交叉口的第一车辆之后的第二车辆的运动与穿过交叉路口的第一车辆移动同步。

公开(公告)号：US20120075075A1

公开(公告)日：2012-03-29

申请号：US13375540

申请日：2009-12-28

申请人： Jiang Du ,  Li Wang ,  Yongzhi Zhang

发明人： Jiang Du ,  Li Wang ,  Yongzhi Zhang

IPC分类号： G06K7/01

CPC分类号： G06K7/0008 ,  G06K7/10049 ,  G06K7/10059

摘要： A label anti-collision method is disclosed, which is applied in a radio frequency identification system including a reader and labels. When the labels enter into an arbitration process, the reader sends the predetermined number of labels to the labels; the reader sends start counting instruction; after a label receives the start counting instruction, the label initializes its own information, and according to the predetermined number of the labels, selects a random number as an initial value of a counter and enters into the arbitration process. A label anti-collision system is also disclosed. With the method and the system, all the labels are hashed at the beginning of arbitrating with the Binary Tree method so as to reduce the probability of the collisions and improve the arbitration efficiency.

摘要翻译： 公开了一种应用于包括读取器和标签的射频识别系统的标签防碰撞方法。 当标签进入仲裁过程时，读者将预定数量的标签发送到标签; 读者发送开始计数指令; 在标签接收到开始计数指令之后，标签初始化其自己的信息，并且根据预定数量的标签，选择随机数作为计数器的初始值并进入仲裁处理。 还公开了一种标签防碰撞系统。 利用方法和系统，所有标签在二进制树法的仲裁开始时被散列，以减少冲突的可能性并提高仲裁效率。

公开(公告)号：US20100259366A1

公开(公告)日：2010-10-14

申请号：US12740635

申请日：2008-07-15

申请人： Hongai Jiao ,  Jian Zhang ,  Jiang Du

发明人： Hongai Jiao ,  Jian Zhang ,  Jiang Du

IPC分类号： H04Q5/22

CPC分类号： G06K7/0008 ,  G06K7/10019

摘要： The method includes: a reader begins to count the tags, and waits for feedback of the tags; the tags are split into two subsets if the tags feedback the collision, the tags of one of the subsets feedback, the tags of the other subset begin to feedback when the tags of one of the subsets complete the count; when the collision occurs in the course of feedback, then the split continues until all the tags are completed the count; the tags of many branches are at least once split simultaneously when the tags of the subsets are split.

摘要翻译： 该方法包括：读者开始对标签进行计数，并等待标签的反馈; 如果标签反馈冲突，则一个子集反馈的标签，另一个子集的标签在其中一个子集的标签完成计数时开始反馈，则将标签分成两个子集; 当在反馈过程中发生碰撞时，分裂继续，直到所有标签完成计数; 当子集的标签被拆分时，许多分支的标签至少一次分割。

公开(公告)号：US08148979B1

公开(公告)日：2012-04-03

申请号：US12425350

申请日：2009-04-16

申请人： Jiang Du

发明人： Jiang Du

IPC分类号： G01V3/00

CPC分类号： G01R33/5602 ,  G01R33/4816 ,  G01R33/4824 ,  G01R33/4826 ,  G01R33/4828

摘要： Techniques and systems for magnetic resonance imaging are disclosed in this specification. In one aspect, imaging of tissues having short transverse relaxation times T2 is described including short echo time (TE) signal acquisition preceded by suppression of signal from the surrounding tissues having long transverse relaxation times T2, to increase the contrast and dynamic range of magnetic resonance (MR) images contributed by the tissues having short T2.

摘要翻译： 用于磁共振成像的技术和系统在本说明书中公开。 在一个方面，描述具有短横向弛豫时间T2的组织的成像，其包括在来自具有长横向弛豫时间T2的周围组织的信号的抑制之前的短回波时间（TE）信号获取，以增加磁共振的对比度和动态范围 （MR）图像由具有短T2的组织贡献。

公开(公告)号：US20070255130A1

公开(公告)日：2007-11-01

申请号：US11735415

申请日：2007-04-13

申请人： Jiang Du

发明人： Jiang Du

IPC分类号： A61B5/05

CPC分类号： G01R33/5619 ,  G01R33/4824 ,  G01R33/5601 ,  G01R33/56325 ,  G01R33/5635

摘要： Methods, systems, and apparatus for magnetic resonance imaging (MRI) are described. In one example, the method includes applying a sample-selective magnetic field gradient sequence along a slice direction to partition responses from a sample under magnetic resonance imaging into a plurality of different regions of slices in the k space, applying spiral readout gradients to the sample to obtain echo data from the sample, and applying a Time Resolved Imaging of Contrast Kinetics imaging technique to sample the different regions of slices in the k space.

摘要翻译： 描述了用于磁共振成像（MRI）的方法，系统和装置。 在一个示例中，该方法包括沿着切片方向施加样本选择磁场梯度序列以将来自磁共振成像处的样本的响应分配到k空间中的多个不同的切片区域，将螺旋读出梯度应用于样本 从样本获得回波数据，并应用时间分辨成像的对比动力学成像技术对k空间中切片的不同区域进行采样。