Work

Coherent-weighted three-dimensional image reconstruction in linear-array-based photoacoustic tomography

Year: 2016

Type: article

Abstract: While the majority of photoacoustic imaging systems used custom-made transducer arrays, commercially-available linear transducer arrays hold the benefits of affordable price, handheld convenience and wide clinical recognition. They are not widely used in photoacoustic imaging primarily because of the poor elevation resolution. Here, without modifying the imaging geometry and system, we propose addressing this limitation purely through image reconstruction. Our approach is based on the integration of two advanced image reconstruction techniques: focal-line-based three-dimensional image reconstruction and coherent weighting. We first numerically validated our approach through simulation and then experimentally tested it in phantom and in vivo. Both simulation and experimental results proved that the method can significantly improve the elevation resolution (up to 4 times in our experiment) and enhance object contrast.

Source: Biomedical Optics Express

DOI: 10.1364/boe.7.001957

Authors: Depeng Wang, Yuehang Wang, Yang Zhou, Jonathan F. Lovell, Jun Xia

Institutions: University at Buffalo, State University of New York, Shandong Normal University, Ministry of Education

Language: English

Topic: Photoacoustic and Ultrasonic Imaging

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,913