ANATOMICAL VARIANTS OF CIRCLE OF WILLIS WITH 3D TIME-OF-FLIGHT NIR ANGIOGRAPHY AND ANALYSIS OF PARTITIONS

被引：0
|
作者：
BRUNEREAU, L
LEVY, C
ARRIVE, L
BOUSSON, V
MARSOTDUPUCH, K
BOUSSER, MG
TUBIANA, JM
机构：
来源：
JOURNAL DE RADIOLOGIE | 1995年 / 76卷 / 09期
关键词：
MAGNETIC RESONANCE ANGIOGRAPHY (MRA); MAGNETIC RESONANCE ARTIFACT; BRAIN ANATOMY;
D O I：
暂无
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：
The purpose of this study was to analyse with 3D TOF MR angiography the anatomical variants of the circle of Willis (CW) in 109 consecutive patients. In all cases, the quality of exams was sufficient to analyse the anatomy of CW. Nevertheless, MRA over estimated hypoplastic segments because incomplete CW were more frequently demonstrated with MRA than in anatomic literature. This lack of MRA sensitivity was related to artifacts as MIP artifacts and blood flow artifacts. MRA sensitivity was improved by analysis of partitions with MIP reconstructions .
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页码：573 / 577
页数：5
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