Method and apparatus for correcting multi-modality imaging data
    1.
    发明授权
    Method and apparatus for correcting multi-modality imaging data 有权
    用于校正多模态成像数据的方法和装置

    公开(公告)号:US08553959B2

    公开(公告)日:2013-10-08

    申请号:US12053370

    申请日:2008-03-21

    IPC分类号: G06K9/00

    摘要: A method for correcting Positron Emission Tomography (PET) data includes adjusting a tube current generated by the CT imaging system to a second tube current value that is less than a first tube current value used to generate diagnostic quality CT images, and imaging the patient with the CT imaging system set at the second tube current value. The method also includes generating a plurality of computed tomography (CT) projection data from the CT imaging system and preprocessing the CT projection data to generate preprocessed CT projection data. The method further includes filtering the preprocessed CT projection data to reduce electronic noise to generate filtered CT projection data, and performing a minus logarithmic operation on the filtered CT projection data to generate the corrected PET data.

    摘要翻译: 用于校正正电子发射断层摄影(PET)数据的方法包括将由CT成像系统产生的管电流调节到小于用于产生诊断质量CT图像的第一管电流值的第二管电流值,以及使患者成像 CT成像系统设置在第二管电流值。 该方法还包括从CT成像系统生成多个计算机断层摄影(CT)投影数据,并预处理CT投影数据以产生预处理的CT投影数据。 该方法还包括对预处理的CT投影数据进行滤波以减少电子噪声以产生经滤波的CT投影数据,以及对经滤波的CT投影数据执行负对数运算以产生经校正的PET数据。

    Method and Apparatus for Correcting Multi-Modality Imaging Data
    2.
    发明申请
    Method and Apparatus for Correcting Multi-Modality Imaging Data 有权
    用于校正多模态成像数据的方法和装置

    公开(公告)号:US20090238427A1

    公开(公告)日:2009-09-24

    申请号:US12053370

    申请日:2008-03-21

    IPC分类号: A61B6/00

    摘要: A method for correcting Positron Emission Tomography (PET) data includes adjusting a tube current generated by the CT imaging system to a second tube current value that is less than a first tube current value used to generate diagnostic quality CT images, and imaging the patient with the CT imaging system set at the second tube current value. The method also includes generating a plurality of computed tomography (CT) projection data from the CT imaging system and preprocessing the CT projection data to generate preprocessed CT projection data. The method further includes filtering the preprocessed CT projection data to reduce electronic noise to generate filtered CT projection data, and performing a minus logarithmic operation on the filtered CT projection data to generate the corrected PET data.

    摘要翻译: 用于校正正电子发射断层摄影(PET)数据的方法包括将由CT成像系统产生的管电流调节到小于用于产生诊断质量CT图像的第一管电流值的第二管电流值,以及使患者成像 CT成像系统设置在第二管电流值。 该方法还包括从CT成像系统生成多个计算机断层摄影(CT)投影数据,并预处理CT投影数据以产生预处理的CT投影数据。 该方法还包括对预处理的CT投影数据进行滤波以减少电子噪声以产生经滤波的CT投影数据,以及对经滤波的CT投影数据执行负对数运算以产生经校正的PET数据。