Magnetic resonance imaging of cerebral blood flow and diagnosis of
diabetes
    2.
    发明授权
    Magnetic resonance imaging of cerebral blood flow and diagnosis of diabetes 失效
    脑血流量磁共振成像及糖尿病诊断

    公开(公告)号:US5833610A

    公开(公告)日:1998-11-10

    申请号:US696461

    申请日:1996-08-14

    CPC分类号: G01R33/563 G01R33/4806

    摘要: A method of magnetic resonance imaging of cerebral blood flow uses a pulse sequence of a rapid gradient-echo method, wherein the pulse is an RF pulse having a slice gradient, a read gradient and a phase-encode gradient. The RF pulse is provided with a flip angle of between 45 and 60 degrees, and an additional gradient is added to each of the slice gradient, read gradient and phase-encode gradient, thereby diffusing and refusing proton spin in the cerebral blood flow. Very slight changes in the blood flow in the brain can be imaged and diabetes can be diagnosed by detecting the increase in the blood flow in a specific brain region after systemic administration of insulin.

    摘要翻译: 脑血流磁共振成像的方法使用快速梯度回波法的脉冲序列,其中脉冲是具有切片梯度,读取梯度和相位编码梯度的RF脉冲。 RF脉冲具有45度至60度之间的翻转角度,并且向切片梯度,读取梯度和相位编码梯度中的每一个添加附加梯度,从而扩散和拒绝脑血流中的质子旋转。 可以对脑中的血流量进行非常轻微的变化,并且可以通过在全身给予胰岛素后检测特定脑区域中血流量的增加来诊断糖尿病。