Li W, Kramer J, Kleefield J, Edelman R R
Department of Radiology, Beth Israel Hospital, Boston, MA 02215.
AJNR Am J Neuroradiol. 1992 Sep-Oct;13(5):1423-8.
To describe an oblique, two-slab 3-D acquisition technique for MR angiography of the extracranial carotid arteries, an approach chosen to minimize saturation effects when the body coil is used as transmitter, as is often the situation when a dedicated neck coil is used as receiver.
Five healthy subjects and 17 patients in whom carotid artery disease was suspected underwent MR angiography using the above technique.
Flow contrast was much better than in direct sagittal acquisition. Comparisons between multislab transverse 3-D acquisition and the oblique approach showed that a greater length of the carotid arteries was depicted and scan time was less for oblique acquisitions.
Use of oblique imaging is a simple and effective solution to the problem of coil-related saturation effects.
描述一种用于颅外颈动脉磁共振血管造影的倾斜双层面三维采集技术，当使用体线圈作为发射线圈时（这在通常使用专用颈部线圈作为接收线圈的情况下很常见），选择这种方法是为了将饱和效应降至最低。
5名健康受试者和17名疑似患有颈动脉疾病的患者接受了使用上述技术的磁共振血管造影。
血流对比明显优于直接矢状面采集。多层横向三维采集与倾斜采集方法的比较表明，倾斜采集能显示更长的颈动脉长度，且扫描时间更短。
使用倾斜成像对于解决与线圈相关的饱和效应问题是一种简单有效的方法。
