Title :
Elasticity measurement of soft tissue using shear acoustic wave and real-time movement estimating based on PCA neural network
Author :
Li, Junbo ; Wan, Mingxi ; Qian, Ming ; Cheng, Jingzhi
Author_Institution :
Dept. of Biomed. Eng., Xi´´an Jiaotong Univ., China
fDate :
29 Oct-1 Nov 1998
Abstract :
A novel ultrasound method for remote measurement of tissue elasticity is proposed. The method is based on acoustic shear wave and time delay estimation using PCA neural network. Compared to other shear wave elasticity imaging approaches, this method has advantages in that it can be recombined with current blood flow imaging equipment and estimates the tissue elasticity in real time with high resolution. Experiments are performed on a homogeneous tissue-mimicking phantom and results of tissue internal stain due to shear wave propagation are reported
Keywords :
biological tissues; biomechanics; biomedical measurement; biomedical ultrasonics; delay estimation; elasticity; medical image processing; motion estimation; neural nets; principal component analysis; PCA neural network; elasticity measurement; high resolution; homogeneous tissue-mimicking phantom; real-time movement estimation; remote measurement; shear acoustic wave; shear wave propagation; soft tissue; time delay estimation; tissue elasticity; tissue internal stain; ultrasound method; Acoustic imaging; Acoustic measurements; Acoustic waves; Biological tissues; Delay effects; Delay estimation; Elasticity; High-resolution imaging; Ultrasonic imaging; Ultrasonic variables measurement;
Conference_Titel :
Engineering in Medicine and Biology Society, 1998. Proceedings of the 20th Annual International Conference of the IEEE
Conference_Location :
Hong Kong
Print_ISBN :
0-7803-5164-9
DOI :
10.1109/IEMBS.1998.747142
