Frahm J, Merboldt K D, Hänicke W, Gyngell M L, Bruhn H
Max-Planck-Institut für biophysikalische Chemie, Göttingen, Federal Republic of Germany.
Magn Reson Med. 1988 May;7(1):79-87. doi: 10.1002/mrm.1910070109.
This paper describes a new technique for NMR angiography based on rapid line scan projection imaging and presaturation of stationary spins. The resulting line scan angiograms are free from both misregistration artifacts common to subtraction methods and motion artifacts encountered in Fourier imaging. Moreover, line scan angiograms may be recorded within seconds and offer arbitrary fields of view as well as gradient zooming without problems due to aliasing. Three-dimensional information is obtained by rotation of the read gradient axis generating multiple view angles. Experimental line scan angiograms of the forearms of healthy volunteers have been recorded using a Bruker 2.35-T 40-cm magnet.
本文介绍了一种基于快速线扫描投影成像和静止自旋预饱和的核磁共振血管造影新技术。由此产生的线扫描血管造影既没有减法方法常见的配准误差伪影，也没有傅里叶成像中遇到的运动伪影。此外，线扫描血管造影可以在几秒钟内记录下来，并提供任意视野以及梯度缩放功能，且不会出现因混叠导致的问题。通过旋转读出梯度轴生成多个视角来获取三维信息。使用布鲁克2.35-T 40厘米磁体记录了健康志愿者前臂的实验性线扫描血管造影。
