Methods and systems for aligning views of image data
    1.
    发明授权
    Methods and systems for aligning views of image data 有权
    用于对准图像数据视图的方法和系统

    公开(公告)号:US06500123B1

    公开(公告)日:2002-12-31

    申请号:US09707238

    申请日:2000-11-06

    IPC分类号: A61B800

    摘要: A first ultrasound dataset that represents an object in a first coordinate system can be acquired at a first time. Three landmarks of the object can be located in the first ultrasound dataset to define a second coordinate system. A first transform from the first to the second coordinate system can be determined for the first ultrasound dataset. A second ultrasound dataset that represents the object in the first coordinate system can be acquired at a second time. The same three landmarks in the second ultrasound dataset can be located to define a third coordinate system. A second transform from the first to the third coordinate systems can be determined for the second ultrasound dataset.

    摘要翻译: 可以在第一时间获取表示第一坐标系中的对象的第一超声数据集。 物体的三个标记可以位于第一超声数据集中以限定第二坐标系。 可以对于第一超声数据集确定从第一坐标系到第二坐标系的第一变换。 可以在第二时间获取表示第一坐标系中的对象的第二超声数据集。 可以定位第二超声数据集中相同的三个地标以定义第三坐标系。 可以针对第二超声数据集确定从第一至第三坐标系的第二变换。

    Methods and systems for volume rendering using ultrasound data
    2.
    发明授权
    Methods and systems for volume rendering using ultrasound data 有权
    使用超声数据进行体绘制的方法和系统

    公开(公告)号:US06544178B1

    公开(公告)日:2003-04-08

    申请号:US09707241

    申请日:2000-11-06

    IPC分类号: A61B800

    摘要: An ultrasound scanner may display volume renderings of objects in real time. In particular, the system can scan an object at a first time using the ultrasound scanner to provide a first 3D ultrasound dataset that represents the object and of an instrument at a first position. A volume rendering of at least a portion of the object and instrument can be displayed. The first position of the instrument can be adjusted relative to the object based on the displayed volume rendering to provide a second position of the instrument. The object is scanned at a second time using the ultrasound scanner to provide a second 3D ultrasound dataset that represents at least a portion of the object and the instrument at the second position.

    摘要翻译: 超声波扫描器可以实时显示物体的体积渲染。 特别地,系统可以使用超声扫描器在第一时间扫描物体,以提供表示物体的第一3D超声数据集和在第一位置处的仪器。 可以显示对象和乐器的至少一部分的体绘制。 仪器的第一个位置可以根据显示的体积渲染相对于物体进行调整,以提供仪器的第二个位置。 使用超声扫描仪第二次扫描物体,以提供第二3D超声数据集,其在第二位置表示物体和仪器的至少一部分。

    Two-dimensional ultrasonic array with asymmetric apertures
    3.
    发明授权
    Two-dimensional ultrasonic array with asymmetric apertures 有权
    具有不对称孔径的二维超声波阵列

    公开(公告)号:US06783497B2

    公开(公告)日:2004-08-31

    申请号:US10154149

    申请日:2002-05-23

    IPC分类号: A61B814

    摘要: A sparse array that uses a small fraction of a fully populated array but yields a radiation pattern that is suitable for high quality medical imaging. The sparse array consists of two or more separate zones for transmitting and receiving as opposed to the overlapping arrays of the prior art. More specifically, a preferred embodiment sets forth an inner array of transmit elements with a narrow effective aperture and a separate non-overlapping outer array of receive elements with a wide effective aperture. The combination of asymmetric apertures is particularly useful for parallel processing applications. This abstract is provided as a tool for those searching for patents, and not as a limitation on the scope of the claims.

    摘要翻译: 一个稀疏阵列,使用一小部分完全填充的阵列,但产生适合高质量医学成像的辐射图。 与现有技术的重叠阵列相反,稀疏阵列由两个或更多个用于发送和接收的分离区组成。 更具体地,优选实施例阐述具有窄有效孔径的发射元件的内部阵列和具有宽有效孔径的接收元件的单独的非重叠外部阵列。 不对称孔的组合对于并行处理应用特别有用。 该摘要作为搜索专利的工具提供,而不是作为对权利要求范围的限制。