Method and system for providing a maximum intensity projection of a non-planar image
    61.
    发明授权
    Method and system for providing a maximum intensity projection of a non-planar image 有权
    提供非平面图像的最大强度投影的方法和系统

    公开(公告)号:US06211674B1

    公开(公告)日:2001-04-03

    申请号:US09311875

    申请日:1999-05-14

    IPC分类号: G01V300

    CPC分类号: G01R33/4833 G01R33/563

    摘要: An imaging method and system generates images of non-planar portions of a three dimensional data point array wherein the non-planar portion corresponds to a non-planar object. The method includes selecting at least two different intermediate imaging planes, each selected plane including at least a portion of the object to be imaged, generating cross-sectional views perpendicular to each intermediate plane, selecting a viewing plane, projecting the cross-sectional views onto the viewing plane to generate transition value sets, and combining the transition value sets to generate values for each pixel in a display.

    摘要翻译: 成像方法和系统生成三维数据点阵列的非平面部分的图像,其中非平面部分对应于非平面物体。 该方法包括选择至少两个不同的中间成像平面,每个选定平面包括待成像对象的至少一部分,产生垂直于每个中间平面的横截面视图,选择观察平面,将横截面视图投影到 观察平面以产生转换值集合,并且组合转换值集合以生成显示器中的每个像素的值。

    Arterial MRI with chemical-shift nulling
    62.
    发明授权
    Arterial MRI with chemical-shift nulling 失效
    动脉MRI与化学位移归零

    公开(公告)号:US5999839A

    公开(公告)日:1999-12-07

    申请号:US16569

    申请日:1998-01-30

    摘要: A magnetic resonance (MR) imaging method uses chemical shift and/or slice selective inversion pulse to create angiograms of coronary arteries. In one embodiment blood is doped with a contrast enhancement agent and a sequence of slice selective and chemical shift selective inversion pulses are applied. Detection RF pulses then generate an image signal. In another embodiment two sequential chemical shift inversion pulses are applied followed by detection RF pulses for imaging.

    摘要翻译: 磁共振(MR)成像方法使用化学位移和/或切片选择性反转脉冲来产生冠状动脉的血管造影。 在一个实施例中,血液掺杂有对比度增强剂,并且应用片选择和化学位移选择性反转脉冲序列。 检测RF脉冲然后产生图像信号。 在另一个实施例中,施加两个顺序的化学位移反转脉冲,随后检测用于成像的RF脉冲。