Size-adjustable Ring-shape Photoacoustic Tomography System
Daohuai Jiang, Yifei Xu, Hengrong Lan, Feng Gao, and Fei Gao

TL;DR
This paper introduces a size-adjustable photoacoustic tomography system using sectorial ultrasound transducer arrays, enhancing flexibility for imaging targets of different sizes in biomedical applications.
Contribution
The paper presents a novel, adjustable PAT system with a sectorial transducer array that can modify its imaging region size, unlike traditional fixed-radius systems.
Findings
Simulation results confirm system feasibility.
Phantom and ex-vivo imaging demonstrate clinical potential.
Adjustable ROI from 50mm to 90mm.
Abstract
Photoacoustic tomography (PAT) combines the advantages of the spectroscopic optical absorption contrast and acoustic resolution with deep penetration, and becomes an important novel biomedical imaging technology for scientific research and clinical diagnosis. In this paper, an imaging size-adjustable PAT system is proposed for clinical applications, which can adapt for different size imaging targets. Comparing with the conventional PAT system setup which with a fixed radius ring shape ultrasound transducer (UT) array, the proposed system, which is based on sectorial ultrasound transducer array (SUTA), is more flexible for different size targets imaging. There are 32 elements for each SUTA, and four SUTAs form a 128-channel UT array for photoacoustic wave detection. The four SUTAs are controlled by four stepper motors, and change the SUTAs distribute positon that adapt for imaging…
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Taxonomy
TopicsPhotoacoustic and Ultrasonic Imaging · Nanoplatforms for cancer theranostics · Optical Imaging and Spectroscopy Techniques
