Normal variants of the intracranial circulation demonstrated by MR angiography at 3T

被引:54
作者
Parmar, H [1 ]
Sitoh, YY [1 ]
Hui, F [1 ]
机构
[1] Natl Inst Neurosci, Singapore 308433, Singapore
关键词
magnetic resonance imaging; magnetic resonance angiography; circle of Willis; intracranial circulation; normal variants; MIDDLE CEREBRAL-ARTERY; MAGNETIC-RESONANCE ANGIOGRAPHY; FENESTRATION; ANOMALIES; BIFURCATION; ANEURYSMS; SEGMENT; CIRCLE; WILLIS; FETAL;
D O I
10.1016/j.ejrad.2005.05.005
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
Magnetic resonance angiography (MRA) at 3 T offers increased signal to noise ratio with better background suppression, leading to exquisite depiction of the intracranial circulation. We present a pictorial review of the normal variations and anomalies of the intracranial circulation detected on MRA performed on a high field 3 T clinical scanner using parallel imaging techniques. The salient imaging features of these anomalies and normal variations are discussed with relevance to clinical practice. (C) 2005 Elsevier Ireland Ltd. All rights reserved.
引用
收藏
页码:220 / 228
页数:9
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