Improving photoacoustic-imaging axial positioning accuracy and signal-to-noise ratio using acoustic echo effect
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
| Original language | English |
|---|---|
| Article number | 112788 |
| Journal / Publication | Sensors and Actuators, A: Physical |
| Volume | 329 |
| Online published | 27 Apr 2021 |
| Publication status | Published - 1 Oct 2021 |
Link(s)
Abstract
We have developed a method to improve the performance of photoacoustic (PA) imaging technique by applying the acoustic echo effect. By superimposing the main and echo ultrasound signals, the axial positioning accuracy of a PA imaging system could be improved by 100 % and the signal-to-noise ratio (SNR) could be enhanced by ∼2.8 dB experimentally. Using a multiwall carbon nanotubes composite structure as a sample, the occurrence conditions and properties of the echo signals were discussed. Theoretically, the SNR could be increased within a working distance of ∼3.9 mm when water is used as the medium. Moreover, we found that PA images of red blood cells could also be enhanced by this method.
Research Area(s)
- Distance accuracy, Echo effect, Photoacoustic, Signal-to-noise ratio
Citation Format(s)
Improving photoacoustic-imaging axial positioning accuracy and signal-to-noise ratio using acoustic echo effect. / Zhao, Wenxiu; Yu, Haibo; Wen, Yangdong et al.
In: Sensors and Actuators, A: Physical, Vol. 329, 112788, 01.10.2021.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
