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    Method and system for performing high temporal resolution bolus detection using CT image projection data
    1.
    发明申请
    Method and system for performing high temporal resolution bolus detection using CT image projection data 有权
    使用CT图像投影数据执行高时间分辨率推注检测的方法和系统

    公开(公告)号：US20080304728A1

    公开(公告)日：2008-12-11

    申请号：US11811210

    申请日：2007-06-08

    申请人： Paul E. Licato ,  Bernice E. Hoppel

    发明人： Paul E. Licato ,  Bernice E. Hoppel

    IPC分类号： G06K9/00

    CPC分类号： A61B6/481 ,  A61B6/03 ,  A61B6/504 ,  A61B6/507 ,  G06T7/20 ,  G06T2207/10081

    摘要： A method of evaluating changes in contrast of an image using a diagnostic imaging system is provided. The method provides acquiring raw image data of an organ or tissue, calculating a baseline of data based on the raw image data acquired before arrival of an agent, and determining changes in a signal intensity of the agent based on changes in the raw image data compared to the baseline. The agent may be an imaging agent, a contrast agent, a biomedical agent, a needle, a catheter, a biomedical device, and the like.

    摘要翻译： 提供了使用诊断成像系统评估图像的对比度的变化的方法。 该方法提供获取器官或组织的原始图像数据，基于在代理人到达之前获取的原始图像数据计算数据的基线，并且基于原始图像数据的变化来确定代理的信号强度的变化 到基线。 该试剂可以是成像剂，造影剂，生物医学剂，针，导管，生物医学装置等。

    Method and system for performing high temporal resolution bolus detection using CT image projection data
    2.
    发明授权
    Method and system for performing high temporal resolution bolus detection using CT image projection data 有权
    使用CT图像投影数据执行高时间分辨率推注检测的方法和系统

    公开(公告)号：US07983460B2

    公开(公告)日：2011-07-19

    申请号：US11811210

    申请日：2007-06-08

    申请人： Paul E. Licato ,  Bernice E. Hoppel

    发明人： Paul E. Licato ,  Bernice E. Hoppel

    IPC分类号： G06K9/00 ,  G01N23/04

    CPC分类号： A61B6/481 ,  A61B6/03 ,  A61B6/504 ,  A61B6/507 ,  G06T7/20 ,  G06T2207/10081

    摘要： A method of evaluating changes in contrast of an image using a diagnostic imaging system is provided. The method provides acquiring raw image data of an organ or tissue, calculating a baseline of data based on the raw image data acquired before arrival of an agent, and determining changes in a signal intensity of the agent based on changes in the raw image data compared to the baseline. The agent may be an imaging agent, a contrast agent, a biomedical agent, a needle, a catheter, a biomedical device, and the like.

    摘要翻译： 提供了使用诊断成像系统评估图像的对比度的变化的方法。 该方法提供获取器官或组织的原始图像数据，基于在代理人到达之前获取的原始图像数据计算数据的基线，并且基于原始图像数据的变化来确定代理的信号强度的变化 到基线。 该试剂可以是成像剂，造影剂，生物医学剂，针，导管，生物医学装置等。

    Method of CT perfusion imaging and apparatus for implementing same
    5.
    发明授权
    Method of CT perfusion imaging and apparatus for implementing same 有权
    CT灌注成像方法及其实现方法

    公开(公告)号：US07933377B2

    公开(公告)日：2011-04-26

    申请号：US12477677

    申请日：2009-06-03

    申请人： Jiang Hsieh ,  Paul E. Licato ,  Akira Hagiwara ,  Mark Vincent Profio ,  Karen Ann Procknow ,  Saad Ahmed Sirohey ,  Srinivas Aluri ,  Olga Imas

    发明人： Jiang Hsieh ,  Paul E. Licato ,  Akira Hagiwara ,  Mark Vincent Profio ,  Karen Ann Procknow ,  Saad Ahmed Sirohey ,  Srinivas Aluri ,  Olga Imas

    IPC分类号： A61B6/00

    CPC分类号： A61B6/032 ,  A61B5/026 ,  A61B6/027 ,  A61B6/0457 ,  A61B6/4291 ,  G06T11/008

    摘要： A CT system includes a scintillator array having a first length in an axial direction of the CT system, the scintillator array includes a plurality of scintillator cells along the first length. The CT system includes a controller configured to repeatedly position a subject fore and aft along the axial direction and over a second length of the CT system, the second length greater than the first length, energize an x-ray source to emit x-rays toward the subject while the subject is being repeatedly positioned, and obtain non-uniform projection data of the subject from the scintillator array, the non-uniform projection data comprising the x-rays received from the x-ray source while the subject is repeatedly positioned. The CT system includes a computer programmed to reconstruct a plurality of temporally non-uniformly spaced images from the non-uniform projection data, interpolate the plurality of non-uniform images to form a plurality of temporally uniform images, and apply a perfusion map generation process to the plurality of temporally uniform images.

    摘要翻译： CT系统包括在CT系统的轴向上具有第一长度的闪烁体阵列，闪烁体阵列包括沿着第一长度的多个闪烁体单元。 CT系统包括控制器，该控制器被配置为沿着轴向方向和CT系统的第二长度反复地定位被检体的前后，第二长度大于第一长度，激励X射线源以向x射线发射X射线 在被摄体被重复定位的同时，从闪烁体阵列获得被摄体的不均匀的投影数据，该非均匀投影数据包括在被摄体重复定位时从x射线源接收的X射线。 CT系统包括被编程为从不均匀投影数据重构多个时间上不均匀的图像的计算机，内插多个非均匀图像以形成多个时间上均匀的图像，并且应用灌注图生成过程 到多个时间均匀的图像。

    COMPUTED TOMOGRAPHY METHOD AND SYSTEM
    8.
    发明申请
    COMPUTED TOMOGRAPHY METHOD AND SYSTEM 审中-公开
    计算机图形学方法与系统

    公开(公告)号：US20090129539A1

    公开(公告)日：2009-05-21

    申请号：US11944043

    申请日：2007-11-21

    申请人： Paul E. Licato ,  Brian Thomsen ,  Jaynne Leverentz ,  Boris Mudrik ,  Sardar Mal Gautham ,  Bradley Gabrielse ,  Yan Sorkin

    发明人： Paul E. Licato ,  Brian Thomsen ,  Jaynne Leverentz ,  Boris Mudrik ,  Sardar Mal Gautham ,  Bradley Gabrielse ,  Yan Sorkin

    IPC分类号： A61B6/03

    CPC分类号： A61B6/032 ,  A61B6/463 ,  A61B6/482

    摘要： A method of diagnostic imaging is disclosed herein. The method includes acquiring CT projection data at a first x-ray energy level and a second x-ray energy level. The method includes reconstructing a first image pair using a basis material decomposition algorithm and the CT projection data. The method includes displaying a first image from the first image pair. The method includes transforming the first image pair into a second image using image data from the first image pair. The method also includes displaying a second image. A CT system is also disclosed.

    摘要翻译： 本文公开了诊断成像的方法。 该方法包括以第一x射线能级和第二x射线能级获取CT投影数据。 该方法包括使用基础材料分解算法和CT投影数据重建第一图像对。 该方法包括从第一图像对显示第一图像。 该方法包括使用来自第一图像对的图像数据将第一图像对变换为第二图像。 该方法还包括显示第二图像。 还公开了一种CT系统。

    Method for producing physical gradient waveforms in magnetic resonance imaging
    9.
    发明授权
    Method for producing physical gradient waveforms in magnetic resonance imaging 失效
    在磁共振成像中产生物理梯度波形的方法

    公开(公告)号：US6008648A

    公开(公告)日：1999-12-28

    申请号：US985019

    申请日：1997-12-04

    申请人： Anton M. Linz ,  Jason A. Polzin ,  Paul E. Licato ,  Graeme C. McKinnon

    发明人： Anton M. Linz ,  Jason A. Polzin ,  Paul E. Licato ,  Graeme C. McKinnon

    IPC分类号： G01R33/385 ,  G01V3/00

    CPC分类号： G01R33/3852 ,  G01R33/385

    摘要： An MRI system produces magnetic field gradients along physical axes during a patient scan. The gradients are specified as logical gradient waveforms in a pulse sequence and these are stored in a logical vector table. A physical vector table is produced by rotating amplitude values in the logical vector table, and the resulting rotated amplitude values are used to calculate the heating in each gradient axis of the MRI system.

    摘要翻译： MRI系统在患者扫描期间沿物理轴产生磁场梯度。 梯度被指定为脉冲序列中的逻辑梯度波形，并将它们存储在逻辑矢量表中。 通过旋转逻辑矢量表中的振幅值产生物理矢量表，并且使用所得到的旋转振幅值来计算MRI系统的每个梯度轴中的加热。

    METHOD OF CT PERFUSION IMAGING AND APPARATUS FOR IMPLEMENTING SAME
    10.
    发明申请
    METHOD OF CT PERFUSION IMAGING AND APPARATUS FOR IMPLEMENTING SAME 有权
    CT灌注成像方法及其实现方法

    公开(公告)号：US20100310040A1

    公开(公告)日：2010-12-09

    申请号：US12477677

    申请日：2009-06-03

    申请人： Jiang Hsieh ,  Paul E. Licato ,  Akira Hagiwara ,  Mark Vincent Profio ,  Karen Ann Procknow ,  Saad Ahmed Sirohey ,  Srinivas Aluri ,  Olga Imas

    发明人： Jiang Hsieh ,  Paul E. Licato ,  Akira Hagiwara ,  Mark Vincent Profio ,  Karen Ann Procknow ,  Saad Ahmed Sirohey ,  Srinivas Aluri ,  Olga Imas

    IPC分类号： H05G1/60 ,  G06K9/00

    CPC分类号： A61B6/032 ,  A61B5/026 ,  A61B6/027 ,  A61B6/0457 ,  A61B6/4291 ,  G06T11/008

    摘要： A CT system includes a scintillator array having a first length in an axial direction of the CT system, the scintillator array includes a plurality of scintillator cells along the first length. The CT system includes a controller configured to repeatedly position a subject fore and aft along the axial direction and over a second length of the CT system, the second length greater than the first length, energize an x-ray source to emit x-rays toward the subject while the subject is being repeatedly positioned, and obtain non-uniform projection data of the subject from the scintillator array, the non-uniform projection data comprising the x-rays received from the x-ray source while the subject is repeatedly positioned. The CT system includes a computer programmed to reconstruct a plurality of temporally non-uniformly spaced images from the non-uniform projection data, interpolate the plurality of non-uniform images to form a plurality of temporally uniform images, and apply a perfusion map generation process to the plurality of temporally uniform images.

    摘要翻译： CT系统包括在CT系统的轴向上具有第一长度的闪烁体阵列，闪烁体阵列包括沿着第一长度的多个闪烁体单元。 CT系统包括控制器，该控制器被配置为沿着轴向方向和CT系统的第二长度反复地定位被检体的前后，第二长度大于第一长度，激励X射线源以向x射线发射X射线 在被摄体被重复定位的同时，从闪烁体阵列获得被摄体的不均匀的投影数据，该非均匀投影数据包括在被摄体重复定位时从x射线源接收的X射线。 CT系统包括被编程为从不均匀投影数据重构多个时间上不均匀的图像的计算机，内插多个非均匀图像以形成多个时间上均匀的图像，并且应用灌注图生成过程 到多个时间均匀的图像。