B-mode enhancement at phase-inversion US with air-based microbubble contrast agent: Initial experience in humans

被引:72
作者
Albrecht, T
Hoffmann, CW
Schettler, S
Overberg, A
Ilg, M
von Behren, PL
Bauer, A
Wolf, KJ
机构
[1] Free Univ Berlin, Klinikum Benjamin Franklin, Dept Radiol & Nucl Med, D-12200 Berlin, Germany
[2] Siemens US Grp, Issaquah, WA USA
[3] Schering, Dept Clin Dev, Berlin, Germany
关键词
ultrasound; (US); contrast media;
D O I
10.1148/radiology.216.1.r00jl27273
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
Pulse- or phase-inversion ultrasonography (US) sums the signals returned from two 180 degrees ultrasound pulses. Linear scattering from tissue results in a signal void while nonlinear signals from microbubbles stand out. The technique was applied with a US contrast agent in 39 human subjects. B-mode enhancement of vessels and organ parenchyma was seen in all cases. Enhancement occurred from flowing and stationary microbubbles. The flow-independent enhancement of normal and abnormal tissue represents a major advance in contrast material-enhanced US with many potential applications especially in tumor imaging.
引用
收藏
页码:273 / 278
页数:6
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