Method of performing magnetic resonance angiography using two-dimensional imaging and de-rated gradients
    2.
    发明授权
    Method of performing magnetic resonance angiography using two-dimensional imaging and de-rated gradients 有权
    使用二维成像和降额梯度进行磁共振血管造影的方法

    公开(公告)号:US06259940B1

    公开(公告)日:2001-07-10

    申请号:US09301246

    申请日:1999-04-28

    IPC分类号: A61B5055

    摘要: In an MRI system using high-performance gradient hardware, a method includes de-rating selected lobes in a 2DTOF imaging pulse sequence; employing images from the two-dimensional imagery to detect the presence of disease; and performing three-dimensional contrast-enhanced MRA if disease was detected at a sufficiently high level to make three-dimensional imaging useful. By de-rating selected lobes of the 2DTOF imaging pulse sequence, sensitivity to carotid stenosis at or above the clinically important range of 60-70% is achieved.

    摘要翻译: 在使用高性能梯度硬件的MRI系统中,一种方法包括以2DTOF成像脉冲序列降低所选择的瓣; 使用二维图像的图像来检测疾病的存在; 并且如果在足够高的水平检测到疾病以使三维成像有用,则执行三维造影增强MRA。 通过降低2DTOF成像脉冲序列的选定的瓣膜,实现了临床上重要范围为60-70%之间的颈动脉狭窄的敏感性。