Hope M D, Purcell D D, Hope T A, von Morze C, Vigneron D B, Alley M T, Dillon W P
Department of Radiology, University of California, San Francisco, CA 94143-0628, USA.
AJNR Am J Neuroradiol. 2009 Feb;30(2):362-6. doi: 10.3174/ajnr.A1138. Epub 2008 Jul 24.
Time-resolved, 3D velocity-encoded MR imaging (4D Flow) allows for the acquisition of dynamic, multidirectional data on blood flow and has recently been used for the evaluation of intracranial arterial flow. Using a 3T system with optimization of both temporal resolution and k-space subsampling with a combination of parallel imaging and cut-corner acquisition, we present the clinical assessment of a patient with an arteriovenous malformation by providing complete intracranial arterial and venous coverage in a reasonable scan time.
时间分辨三维速度编码磁共振成像(四维血流成像)能够获取关于血流的动态、多方向数据,最近已用于评估颅内动脉血流。我们使用一台3T系统,通过并行成像和斜角采集相结合的方式优化时间分辨率和k空间欠采样,在合理的扫描时间内实现对颅内动静脉畸形患者的完整颅内动静脉覆盖,从而进行临床评估。