Revised amplitude modulation for contrast-enhanced ultrasound imaging with a cMUT array.

被引：1

作者：

Fouan, Damien ^{[1
]}

Bouakaz, Ayache ^{[1
]}

机构：

[1] Univ Tours, INSERM, U930, Imagerie & Cerveau, Tours, France

来源：

2015 IEEE INTERNATIONAL ULTRASONICS SYMPOSIUM (IUS) | 2015年

关键词：

cMUT; Microbubbles; Contrast sequences; Nonlinear acoustic; TRANSDUCERS; AGENTS;

D O I：

10.1109/ULTSYM.2015.0231

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Over the past 15 years, capacitive micro-machined ultrasonic transducers (cMUT) have been developed as a promising alternative to standard piezoelectric transducer (PZT). A large bandwidth and a reduction in self-heating are among the main advantages of this high potential technology but it suffers from a high intrinsic nonlinearity. This behavior could lead to misclassification of tissue in ultrasound contrast-enhanced imaging. Classical sequences, such as Pulse Inversion (PI) or Amplitude Modulation (AM) are no longer suitable and the only solution seems to be the compensation of the cMUT nonlinearity by sending a pre-compensated waveform. In this work, we show that an alternative sequence to amplitude modulation mode (already used with PZT arrays) can be successfully applied with a cMUT probe without any limitation related to the nonlinearity of the transmitter.

引用

页数：4

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