Title
An attenuation adapted pulse compression technique to enhance the bandwidth and the resolution using ultrafast ultrasound imaging
Date Issued
10 September 2018
Access level
metadata only access
Resource Type
conference paper
Publisher(s)
Institute of Electrical and Electronics Engineers Inc.
Abstract
Recent studies suggest that Resolution Enhancement Compression (REC) can provide significant improvements in terms of imaging quality over Classical Pulsed (CP) ultrasonic imaging techniques, by employing frequency and amplitude modulated transmitted signals. However the performance of coded excitations methods degrades drastically deeper into the tissue where the attenuation effects become more significant. In this work, a technique that allows overcoming the effects of attenuation on REC imaging is proposed (REC-Opt). It consists in compensating the attenuation effects at each depth in reception. Combined with coherent plane wave compounding (CPWC), REC-Opt was compared to the performance of conventional REC (without attenuation compensation) and CP. With experimental data at 3.25 cm depth in a phantom with an attenuation coefficient slope of 0.5 dB/MHz/cm and using an 8.5 MHz probe, REC-Opt enhanced the bandwidth by 40.6% compared to CP, against an enhancement of only 6% between REC and CP using the same excitation signal designed to provide a 42% increase in bandwidth. The bandwidth enhancements translated into axial resolution improvements of 30% and 3% for REC-Opt vs. CP and REC vs. CP, respectively. This study suggests that REC-Opt is an efficient method to overcome attenuation effects in soft tissues, knowing their attenuation coefficient.
Start page
1040
End page
1044
Volume
2018-April
Language
English
OCDE Knowledge area
Ingeniería médica Ingeniería eléctrica, Ingeniería electrónica
Scopus EID
2-s2.0-85054227346
ISSN of the container
15206149
ISBN of the container
9781538646588
Conference
ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings: 2018 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2018
Sponsor(s)
This work was also supported by the Fondo Nacional de Desarrollo Cient ́ıfico y Tecnol ́ogico-PERU under grant 012-2014-FONDECYT-C1 from the Peruvian Government. This work was performed within the framework of the ANR-11 TecSan-008–01 BBMUT and was supported by LABEX CELYA (ANR-10-LABX-0060) and LABEX PRIMES (ANR-10-LABX-0063), within the program "Investissements d'Avenir" (ANR-11-IDEX-0007) operated by the French National Research Agency (ANR).
Sources of information: Directorio de Producción Científica Scopus