Analysis of scatterer microstructure feature based on Chirp-Z transform cepstrum / 生物医学工程学杂志
Journal of Biomedical Engineering
; (6): 1378-1381, 2007.
Article
in Chinese
| WPRIM (Western Pacific)
| ID: wpr-230682
Responsible library:
WPRO
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.
Full text:
Available
Database:
WPRIM (Western Pacific)
Main subject:
Scattering, Radiation
/
Swine
/
Algorithms
/
Computer Simulation
/
Signal Processing, Computer-Assisted
/
Diagnostic Imaging
/
Ultrasonography
/
Liver
Type of study:
Diagnostic study
Limits:
Animals
/
Humans
Language:
Chinese
Journal:
Journal of Biomedical Engineering
Year:
2007
Document type:
Article