Protocol driven image reconstruction, display, and processing in a multislice imaging system
    1.
    发明公开
    Protocol driven image reconstruction, display, and processing in a multislice imaging system 审中-公开
    在多层成像设备协议驱动重建,显示和图像的处理

    公开(公告)号:EP0982001A1

    公开(公告)日:2000-03-01

    申请号:EP99306638.0

    申请日:1999-08-20

    IPC分类号: A61B6/03

    摘要: A scalable multislice system (10) configured to generate multiple streams of image data with different image quality characteristics prospectively and simultaneously is described. Such capability enables improving existing clinical diagnosis and also enables use of clinical application protocol driven method for image reconstruction and display as well as image analysis. More specifically, with the scalable multislice imaging system (10), multiple rows (>2) of x-ray scan data along the patient's long axis are simultaneously acquired. Multiple protocols (100) are "pre-built" based on specific applications to determine image slice thickness, image reconstruction filter, display method, e. g., field of view, filming requirement and image archiving requirement, prospectively. Multiple image sets with different slice thickness, different reconstruction methods, different display model - axial, 3D or reformat which are pre-determined by the protocol (100) used can then be displayed.

    摘要翻译: 配置为生成与不同的图像质量特性的imageData的多个流和前瞻性同时一种可伸缩多层系统(10)进行说明。 搜索能力允许改进现有临床诊断,因此允许用于图像重建使用临床应用协议驱动方法的,并显示以及图像分析。 更具体地,可伸缩多层成像系统(10),多行(> 2)的x射线沿患者长轴扫描数据被同时获取。 多个协议(100)是“预建”基于特定的应用,以确定矿图象切片厚度,图像重构滤波器,显示方法,例如 的视场,拍摄需求和图像存档要求,前瞻性克,。 多个图像集具有不同的切片厚度,不同的重建方法,不同的显示模型 - 轴向,3D或重新格式化哪些是预先确定由用于随后可以显示在协议(100)。

    Methods and apparatus for automatic image noise reduction
    2.
    发明公开
    Methods and apparatus for automatic image noise reduction 有权
    Verfahren undGerätzur automatischen Bildrauschreduzierung

    公开(公告)号:EP0981998A1

    公开(公告)日:2000-03-01

    申请号:EP99306607.5

    申请日:1999-08-20

    IPC分类号: A61B6/03 H05G1/32

    CPC分类号: H05G1/34 A61B6/032

    摘要: The present invention, in one form, is a system (10) which, in one embodiment, adjusts the x-ray source current to reduce image noise to better accommodate different scanning parameters. Specifically, in one embodiment, the x-ray source current is adjusted as a function of image slice thickness, scan rotation time, collimation mode, table speed, scan mode, and filtration mode. Particularly, a function is stored in a CT system computer (36) to determine an x-ray source current adjustment factor so that the appropriate x-ray source current is supplied to the x-ray source (14) for the determined parameters. After adjusting the x-ray source current, an object is scanned.

    摘要翻译: 本发明以一种形式是在一个实施例中调整x射线源电流以减少图像噪声以更好地适应不同扫描参数的系统(10)。 具体地,在一个实施例中,根据图像切片厚度,扫描旋转时间,准直模式,表速度,扫描模式和过滤模式来调整x射线源电流。 特别地,功能被存储在CT系统计算机(36)中以确定x射线源电流调整因子,使得适当的x射线源电流被提供给x射线源(14)用于所确定的参数。 调整x射线源电流后,扫描物体。