知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

6 records (took 0.013 seconds)

    Low signal correction for perfusion measurements
    2.
    发明授权
    Low signal correction for perfusion measurements 失效
    低信号校正灌注测量

    公开(公告)号：US06512807B1

    公开(公告)日：2003-01-28

    申请号：US09990536

    申请日：2001-11-21

    Applicant: Scott Kenneth Pohlman ,  Zhongmin Steve Lin

    Inventor： Scott Kenneth Pohlman ,  Zhongmin Steve Lin

    IPC: A61B600

    CPC classification number: A61B6/481 ,  A61B5/0263 ,  A61B6/504 ,  A61B6/507 ,  Y10S378/901

    Abstract: A CT scanner (10) for obtaining a medical diagnostic image of a subject includes a stationary gantry (12), and a rotating gantry (14) rotatably supported on the stationary gantry (12) for rotation about the subject. In a perfusion study 130 time-density curves of voxels of an imaging region are computed. In a low signal identification step (132), all voxels with low signal are identified. In a clustering step (134), low signal voxels are clustered together. In a representative determination step (136) representative time-density curves are computed. In a functional measurement step (138), measurements are calculated from the combined and uncombined time-density values. In an assigning step (140), each low signal voxel is assigned the values determined for its group. In a combining step (142) the results of the low and normal signal voxels are combined to produce a single functional perfusion image.

    Abstract translation: 用于获得对象的医学诊断图像的CT扫描器（10）包括固定机架（12）和可旋转地支撑在固定机架（12）上以围绕被摄体旋转的旋转机架（14）。 在灌注研究中，计算了成像区域的体素的时间密度曲线。 在低信号识别步骤（132）中，识别出具有低信号的所有体素。 在聚类步骤（134）中，低信号体素聚集在一起。 在代表性确定步骤（136）中，计算代表时间密度曲线。 在功能测量步骤（138）中，从组合和未组合的时间密度值计算测量值。 在分配步骤（140）中，为每个低信号体素分配为其组确定的值。 在组合步骤（142）中，低和正常信号体素的结果被组合以产生单个功能灌注图像。

    Method and apparatus for semi-automatic aneurysm measurement and stent planning using volume image data
    3.
    发明授权
    Method and apparatus for semi-automatic aneurysm measurement and stent planning using volume image data 有权
    用于半自动动脉瘤测量和使用体积图像数据的支架计划的方法和装置

    公开(公告)号：US06782284B1

    公开(公告)日：2004-08-24

    申请号：US09990010

    申请日：2001-11-21

    Applicant: Krishna Subramanyan ,  Shalabh Chandra ,  Scott Kenneth Pohlman

    Inventor： Krishna Subramanyan ,  Shalabh Chandra ,  Scott Kenneth Pohlman

    IPC: A61B505

    CPC classification number: G06T7/0012 ,  G06T7/12 ,  G06T7/62 ,  G06T2207/10081 ,  G06T2207/20192 ,  G06T2207/30101

    Abstract: An apparatus for measuring parameters preparatory to a stent replacement of an aneurytic blood vessel in a patient (26) includes a computed tomography (CT) scanner (10) that acquires image data (28) corresponding to multiple two-dimensional image slices. A reconstruction processor (32) reconstructs a three-dimensional image representation (34) from the image data (28). A tracking processor (40) produces a tracked vessel (92) including at least a centerline (80) and selected vessel boundaries (86). A user interface (44) displays a rendering (242) of the image representation to an associated user (42), measures selected vascular parameters corresponding to the stent parameters (276), and graphically superimposes the measured parameters on the rendering of the image representation (270, 272).

    Abstract translation: 一种用于测量患者（26）中的支气管血管的支架置换的参数的装置，包括计算机断层摄影（CT）扫描仪（10），其获取对应于多个二维图像切片的图像数据（28）。 重建处理器（32）从图像数据（28）重建三维图像表示（34）。 跟踪处理器（40）产生包括至少中心线（80）和选择的血管边界（86）的跟踪血管（92）。 用户界面（44）将图像表示的渲染（242）显示给相关联的用户（42），测量对应于支架参数（276）的所选择的血管参数，并且将所测量的参数以图形方式叠加在图像表示 （270,272）。

    Enablement of quick remote access to CT scans to improve workflow and patient throughput
    5.
    发明授权
    Enablement of quick remote access to CT scans to improve workflow and patient throughput 有权
    实现快速远程访问CT扫描，以提高工作流程和患者吞吐量

    公开(公告)号：US09037212B2

    公开(公告)日：2015-05-19

    申请号：US10572776

    申请日：2004-09-02

    Applicant: Sethumadavan Sanjay-Gopal ,  Scott Kenneth Pohlman ,  Jacob Scott Durgan

    Inventor： Sethumadavan Sanjay-Gopal ,  Scott Kenneth Pohlman ,  Jacob Scott Durgan

    IPC: A61B5/05 ,  A61B6/00 ,  A61B5/00 ,  G06F19/00 ,  A61B8/00

    CPC classification number: A61B6/56 ,  A61B5/0002 ,  A61B8/565 ,  G06F19/00 ,  G06F19/3418

    Abstract: A bi-directional communication system (12) is utilized for communications between a technician at an imaging workstation (18), from which imaging protocols can be conducted and at which diagnostic images can be displayed, and one or more hospital medical professionals, located at remote locations. The technician selects and addresses the proper medical professional by a use of an addressing means (50) at workstation (18). The technician selects images (42) to be sent to the selected medical professional. The images and medical professional's address are formatted (46) into wireless transmission format via transmitter/receiver (44) coupled to the workstation (18). A plurality of remote transmitters/receivers (62) receives wireless transmissions at remote locations. Each wireless transmission is examined (68) for a correct address and further converted (70) into an appropriate format for human-readable display. The selected medical professional reviews the images (42) and other information and releases the patient, who awaits the reviewing medical professional's response in the vicinity of the scanner (16).

    Abstract translation: 双向通信系统（12）被用于在成像工作站（18）处的技术人员之间进行通信，从该成像工作站（18）可以进行成像协议并且可以显示哪些诊断图像，以及一个或多个医院医疗专业人员 偏远地区。 技术人员通过在工作站（18）处使用寻址装置（50）来选择和寻址适当的医疗专业人员。 技术人员选择要发送给所选择的医疗专业人员的图像（42）。 图像和医疗专业人员的地址通过耦合到工作站（18）的发射机/接收机（44）被格式化成无线传输格式（46）。 多个远程发射机/接收机（62）在远程位置接收无线传输。 检查每个无线传输（68）以获得正确的地址，并进一步转换（70）成为可读显示的适当格式。 所选择的医疗专业人员检查图像（42）和其他信息，并释放患者，他们等待在扫描仪附近检查医疗专业人员的反应（16）。

    Measurements with CT perfusion
    6.
    发明授权
    Measurements with CT perfusion 失效
    CT灌注测量

    公开(公告)号：US06745066B1

    公开(公告)日：2004-06-01

    申请号：US09990352

    申请日：2001-11-21

    Applicant: Zhongmin Steve Lin ,  Scott Kenneth Pohlman ,  Shalabh Chandra

    Inventor： Zhongmin Steve Lin ,  Scott Kenneth Pohlman ,  Shalabh Chandra

    IPC: A61B500

    CPC classification number: A61B6/504 ,  A61B6/481 ,  A61B6/507 ,  G06F19/00 ,  G06F19/321 ,  G06F19/3481 ,  G06T7/0012 ,  G06T7/33 ,  G06T2207/30101 ,  G16H50/50

    Abstract: A CT scanner (10) for obtaining a medical diagnostic image of a subject includes a stationary gantry (12), and a rotating gantry (14). The detected radiation is reconstructed and divided into sub-portions, which sub-portions are aligned by a registration processor (56). The registered images are stored in a high resolution memory (58) and a maximum artery enhancement value is calculated from the high resolution images. A resolution reducer (82) reduces the resolution of the high resolution images. Time-density curves are found for the voxels of the images, which time-density curves are truncated to eliminate unwanted data, and analyzed to determine characteristic values. A perfusion calculator (106) calculates perfusion by using the maximum artery enhancement value and the characteristic values. A diagnostician can view any one of a low resolution image, a high resolution image, and a perfusion image on a video monitor (112).

    Abstract translation: 用于获得对象的医学诊断图像的CT扫描器（10）包括固定台架（12）和旋转机架（14）。 检测到的辐射被重建并分成子部分，子部分由对准处理器（56）排列。 将注册的图像存储在高分辨率存储器（58）中，并且从高分辨率图像计算最大动脉增强值。 分辨率降低器（82）降低了高分辨率图像的分辨率。 针对图像的体素找到时间密度曲线，将时间密度曲线截断以消除不需要的数据，并进行分析以确定特征值。 灌注计算器（106）通过使用最大动脉增强值和特征值来计算灌注。 诊断人员可以在视频监视器（112）上观看低分辨率图像，高分辨率图像和灌注图像中的任何一个。

Patent Agency Ranking