Development and characterization of thermoacoustic imaging system using rotational single element transducer

Md Tarikul Islam; Mohsin Zafar; Ravi Prakash; Rayyan Manwar; Danilo Erricolo; James Lin; Kamran Avanaki

doi:10.1117/12.2651210

9 March 2023 Development and characterization of thermoacoustic imaging system using rotational single element transducer

Md Tarikul Islam, Mohsin Zafar, Ravi Prakash, Rayyan Manwar, Danilo Erricolo, James Lin, Kamran Avanaki

Author Affiliations +

Proceedings Volume 12379, Photons Plus Ultrasound: Imaging and Sensing 2023; 123790V (2023) https://doi.org/10.1117/12.2651210
Event: SPIE BiOS, 2023, San Francisco, California, United States

Conference Poster

Abstract

Microwave-induced thermoacoustic tomography has the advantage of a high spatial resolution and a deep imaging depth. This method has been extensively explored over the past decade to find an alternative of existing imaging techniques. In this study, we have developed a compact microwave-induced thermoacoustic tomography (MI-TAT) with a waveguide antenna and a rotating ultrasound transducer unit. We performed a characterization study of the system in terms of pulse width, selection of microwave frequency and resolution. Then the optimized parameters were used to image in-vitro complex structure phantoms. Later, we expanded our system capability for spectroscopic study by imaging different concentrations of methanol and water to mimic the tissue properties and analyze them based on the absorption characteristics of these materials. We hope, this spectroscopic capability broadens the capability of thermoacoustic system to separate the diseased tissue from the healthy one (e.g., malignant from benign) with a high sensitivity and specificity.

Citation Download Citation

Md Tarikul Islam, Mohsin Zafar, Ravi Prakash, Rayyan Manwar, Danilo Erricolo, James Lin, and Kamran Avanaki "Development and characterization of thermoacoustic imaging system using rotational single element transducer", Proc. SPIE 12379, Photons Plus Ultrasound: Imaging and Sensing 2023, 123790V (9 March 2023); https://doi.org/10.1117/12.2651210

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