ESTIMATION OF PULSES IN ULTRASOUND B-SCAN IMAGES

被引：23

作者：

JENSEN, JA

机构：

[1] Electronics Institute, Technical University of Denmark, Lyngby

来源：

IEEE TRANSACTIONS ON MEDICAL IMAGING | 1991年 / 10卷 / 02期

关键词：

Computer Simulation - Mathematical Techniques - Convergence of Numerical Methods - Signal Filtering and Prediction - Ultrasonics;

D O I：

10.1109/42.79474

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

It is shown, based on an expression for the received pressure field in pulsed medical ultrasound systems, that a common one-dimensional pulse can be estimated from individual A-lines. An ARMA model is suggested for the pulse, and an estimator based on the prediction error method is derived. The estimator is used on a segment of an A-line assuming that the pulse does not change significantly inside the segment. Several examples of use of the estimator on synthetic data and data from a tissue phantom and in vitro data measured from a calf's liver are given. They show that a pulse can be estimated, even at moderate signal-to-noise ratios.

引用

页码：164 / 172

页数：9

共 17 条

[1] UNIQUENESS OF MAXIMUM LIKELIHOOD ESTIMATES OF PARAMETERS OF AN ARMA MODEL [J].