出血的磁共振成像：一种新方法。
MR of hemorrhage: a new approach.
作者信息
Edelman R R, Johnson K, Buxton R, Shoukimas G, Rosen B R, Davis K R, Brady T J
出版信息
AJNR Am J Neuroradiol. 1986 Sep-Oct;7(5):751-6.
Using a modification of the partial saturation (PS) pulse sequence, we developed an MR method that permits the acquisition of highly T1- and T2-weighted images of the head and body in as little as 10 sec. The PS images, which were acquired at 0.6 T in a series of six patients with acute and subacute hemorrhage, showed a striking reduction in the signal intensity of hemorrhagic lesions. This effect, which is related to bulk magnetic susceptibility variations, was either minimal or absent on conventional T1- and T2-weighted spin-echo (SE) images. Our results suggest that high-field systems are not needed in order to image acute and subacute hemorrhage.
通过对部分饱和（PS）脉冲序列进行改进，我们开发了一种磁共振成像方法，该方法能够在短短10秒内获取头部和身体的高T1加权和T2加权图像。在0.6T磁场下，对6例急性和亚急性出血患者进行了一系列PS图像采集，结果显示出血性病变的信号强度显著降低。这种与体磁化率变化相关的效应在传统的T1加权和T2加权自旋回波（SE）图像上要么极小，要么不存在。我们的结果表明，对急性和亚急性出血进行成像并不需要高场系统。
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