Intravascular ultrasound chirp imaging

被引：28

作者：

Maresca, D. ^{[1
]}

Jansen, K. ^{[1
,2
]}

Renaud, G. ^{[1
]}

van Soest, G. ^{[1
]}

Li, X. ^{[3
]}

Zhou, Q. ^{[3
]}

de Jong, N. ^{[1
,2
,4
]}

Shung, K. K. ^{[3
]}

van der Steen, A. F. W. ^{[1
,2
]}

机构：

[1] Erasmus MC, Ctr Thorax, Biomed Engn, NL-3000 CA Rotterdam, Netherlands

[2] Interuniv Cardiol Inst Netherlands, NL-3501 DG Utrecht, Netherlands

[3] Univ So Calif, Dept Biomed Engn, Los Angeles, CA 90089 USA

[4] Delft Univ Technol, NL-2628 CJ Delft, Netherlands

来源：

APPLIED PHYSICS LETTERS | 2012年 / 100卷 / 04期

关键词：

PLAQUE;

D O I：

10.1063/1.3679375

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrate the feasibility of intravascular ultrasound (IVUS) chirp imaging as well as chirp reversal ultrasound contrast imaging at intravascular ultrasound frequency. Chirp excitations were emitted with a 34MHz single crystal intravascular transducer and compared to conventional Gaussian-shaped pulses of equal acoustic pressure. The signal to noise ratio of the chirp images was increased by up to 9 dB relative to the conventional images. Imaging of contrast microbubbles was implemented by chirp reversal, achieving a contrast to tissue ratio of 12 dB. The method shows potential for intravascular imaging of structures in and beyond coronary atherosclerotic plaques including vasa vasorum. (C) 2012 American Institute of Physics. [doi: 10.1063/1.3679375]

引用

页数：3

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