Analysis of scatterer microstructure feature based on Chirp-Z transform cepstrum.
- Author:
Jianzhong GUO
1
;
Shuyu LIN
Author Information
1. Applied Acoustics Institute, Shanxi Normal University, Xi'an 710062, China. guojz@snnu.edu.cn
- Publication Type:Journal Article
- MeSH:
Algorithms;
Animals;
Computer Simulation;
Humans;
Liver;
diagnostic imaging;
Scattering, Radiation;
Signal Processing, Computer-Assisted;
Swine;
Ultrasonography
- From:
Journal of Biomedical Engineering
2007;24(6):1378-1381
- CountryChina
- Language:Chinese
-
Abstract:
The fundamental research field of medical ultrasound has been the characterization of tissue scatterers. The signal processing method is widely used in this research field. A new method of Chirp-Z Transform Cepstrum for mean spacing estimation of tissue scatterers using ultrasonic scattered signals has been developed. By using this method together with conventional AR cepstrum method, we processed the backscattered signals of mimic tissue and pig liver in vitro. The results illustrated that the Chirp-Z Transform Cepstrum method is effective for signal analysis of ultrasonic scattering and characterization of tissue scatterers, and it can improve the resolution for mean spacing estimation of tissue scatterers.
