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    Method and apparatus for volume scoring calcification concentrations of a CT scan
    1.
    发明授权
    Method and apparatus for volume scoring calcification concentrations of a CT scan 有权
    用于体积评分CT扫描钙化浓度的方法和装置

    公开(公告)号：US07239730B2

    公开(公告)日：2007-07-03

    申请号：US10248562

    申请日：2003-01-29

    申请人： John H. Londt ,  Kishore Acharya

    发明人： John H. Londt ,  Kishore Acharya

    IPC分类号： G06K9/00 ,  A61B6/00 ,  A61B5/05

    CPC分类号： A61B6/583 ,  G06T7/0012 ,  Y10S128/922

    摘要： A method for volume scoring a concentration of calcification within a region of interest includes receiving a value for a first calcium lesion volume based on the concentration of calcification within the region of interest, determining an intensity value of the concentration of calcification within the region of interest, calculating the slope of a regression line based on the determined intensity value, and calculating a second calcium lesion volume based on the first calcium lesion volume and the calculated slope of the regression line.

    摘要翻译： 在感兴趣区域内对钙化浓度进行体积评分的方法包括基于感兴趣区域内的钙化浓度接收第一钙损伤体积的值，确定感兴趣区域内钙化浓度的强度值 基于确定的强度值计算回归线的斜率，并且基于第一钙损伤体积和所计算的回归线的斜率来计算第二钙损伤体积。

    Step-and-shoot cardiac CT imaging
    2.
    发明授权
    Step-and-shoot cardiac CT imaging 有权
    分步心脏CT成像

    公开(公告)号：US07313213B1

    公开(公告)日：2007-12-25

    申请号：US11160028

    申请日：2005-06-06

    申请人： Jiang Hsieh ,  Jianying Li ,  John H. Londt ,  Melissa Vass ,  Darin R. Okerlund ,  Bernice Hoppel

    发明人： Jiang Hsieh ,  Jianying Li ,  John H. Londt ,  Melissa Vass ,  Darin R. Okerlund ,  Bernice Hoppel

    IPC分类号： G01N23/083

    CPC分类号： A61B6/541 ,  A61B5/0464 ,  A61B6/027 ,  A61B6/032

    摘要： A CT imaging system has a rotatable gantry, a table movable fore and aft through an opening defined within the rotatable gantry, and a controller that incrementally moves a subject disposed on the table through a number of discrete data acquisition positions for the acquisition of physiologically gated CT data. The controller also coordinates acquisition of imaging data from the subject at a first data acquisition position within a physiological cycle of the subject and only advances the subject to a next data acquisition position if the imaging data acquired at the first data acquisition position is deemed acceptable. The controller also detects irregularities and physiological motion of the subject and responsive thereto, suspends data acquisition until the irregularity passes, such as, suspending data acquisition until a next cardiac cycle if a heart arrhythmia is detected.

    摘要翻译： CT成像系统具有可旋转的台架，通过可旋转机架中限定的开口前后运动的桌子，以及控制器，其通过多个离散的数据采集位置递增地移动设置在桌子上的被摄体，用于采集生理门控 CT数据。 如果在第一数据获取位置处获取的成像数据被认为是可接受的，则控制器还协调在对象的生理周期内的第一数据获取位置处从被摄体获取成像数据，并仅将对象前进到下一个数据采集位置。 控制器还检测对象的不规则和生理运动并响应于此，停止数据采集，直到不规则通过，例如，如果检测到心律不齐，则暂停数据采集直到下一个心动周期。