Research on high-frequency ultrasonic tissue harmonic information extraction based on phase inversion technique / 中国医疗器械杂志
Chinese Journal of Medical Instrumentation
; (6): 402-405, 2008.
Article
in Chinese
| WPRIM (Western Pacific)
| ID: wpr-309566
Responsible library:
WPRO
ABSTRACT
Based on the pulse-coded transmitting and wide-band receiving system, this paper describes A research of phase inversion technique to extract high-frequency ultrasonic tissue harmonic information by making use of wide-band ultrasonic transducer on frequency of 20 MHz, 35 MHz and 50 MHz. The results indicate that adopting the method in this paper is with better fundamental frequency inhibition and at the same time can increase the amplitude of second harmonic information effectively. This method is superior to that traditoncal one by using RF filter to extract tissue harmonic information.
Full text:
Available
Database:
WPRIM (Western Pacific)
Main subject:
Transducers
/
Signal Processing, Computer-Assisted
/
Image Enhancement
/
Ultrasonography
/
Artifacts
/
Methods
Type of study:
Diagnostic study
Limits:
Humans
Language:
Chinese
Journal:
Chinese Journal of Medical Instrumentation
Year:
2008
Document type:
Article