Time-of-flight MR angiography: Comparison of 3.0-T imaging and 1.5-T imaging - Initial experience

被引:142
作者
Willinek, WA
Born, M
Simon, B
Tschampa, HJ
Krautmacher, C
Gieseke, J
Urbach, H
Textor, HJ
Schild, HH
机构
[1] Univ Bonn, Dept Radiol, D-53105 Bonn, Germany
[2] Philips Med Syst, Best, Netherlands
关键词
brain; MR; magnetic resonance (MR); vascular studies;
D O I
10.1148/radiol.2293020782
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
Intracranial three-dimensional time of-flight (TOF) magnetic resonance (MR) angiography was performed in seven healthy volunteers and eight patients with both 1.5-T and 3.0-T MR systems with standard and high spatial resolutions (true voxel sizes, 0.48 x 0.75 x 2.00 mm and 0.30 x 0.44 x 1.00 mm, respectively). Superior image quality and significantly better depiction of small vessel segments and vascular disease were observed at high-spatial-resolution 3.0-T TOF MR angiography but not at standard 1.5-T or standard 3.0-T TOF MR angiography (P < .01, respectively). Intracranial high-spatial-resolution TOF MR angiography at 3.0-T imaging provides diagnostic improvement in studies of cerebrovascular disease. (C) RSNA, 2003.
引用
收藏
页码:913 / 920
页数:8
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