Real-time acoustic radiation force impulse imaging

被引：3

作者：

Pinton, GF ^{[1
]}

McAleavey, SA ^{[1
]}

Dahl, JJ ^{[1
]}

Nightingale, KR ^{[1
]}

Trahey, GE ^{[1
]}

机构：

[1] Duke Univ, Dept Biomed Engn, Durham, NC 27708 USA

来源：

MEDICAL IMAGING 2005: ULTRASONIC IMAGING AND SIGNAL PROCESSING | 2005年 / 5750卷

关键词：

ARFI; elasticity imaging; real-time;

D O I：

10.1117/12.595846

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Acoustic Radiation Force Impulse (ARFI) imaging uses short duration acoustic pulses to generate and subsequently determine localized displacements in tissue. Time delay estimators, such as normalized cross correlation and phase shift estimation, form the computational basis for ARFI imaging. This paper considers these algorithms and the effects of noise, interpolation, and quadrature demodulation on the accuracy of the time delay estimates. These results are used to implement a real-time ARFI imaging system and in an ex vivo liver ablation study.

引用

页码：226 / 235

页数：10

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