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Title: A comparative study of continuous versus stop-and-go scanning in circular scanning photoacoustic tomography
Authors: Sharma, Arunima
Kalva, Sandeep Kumar
Pramanik, Manojit
Keywords: DRNTU::Engineering::Chemical engineering
Circular Scanning Geometry
Continuous Scanning
Issue Date: 2018
Source: Sharma, A., Kalva, S. K., & Pramanik, M. (2019). A comparative study of continuous versus stop-and-go scanning in circular scanning photoacoustic tomography. IEEE Journal of Selected Topics in Quantum Electronics, 25(1), 7100409-. doi:10.1109/JSTQE.2018.2840320
Series/Report no.: IEEE Journal of Selected Topics in Quantum Electronics
Abstract: Photoacoustic tomography (PAT) is a noninvasive hybrid imaging modality providing high contrast and resolution in deep tissue imaging. In a typical PAT system, the photoacoustic (PA) waves are recorded using an ultrasound transducer rotating around the sample. Being economical and easily available, a single-element transducer (SET) is commonly employed. For each laser pulse, the SET collects one time-resolved PA signal, known as an A-line. The acquisition of A-lines in a circular scanning PAT system by a SET can be done in two ways: 1) Stop-and-go scan, and 2) Continuous scan. In this work, we compared the two types of scanning methods in terms of image quality, signal-to-noise ratio (SNR), spatial accuracy, resolution, and scan-time for phantoms and in vivo imaging. We found that the image quality, spatial accuracy, and the SNR did not change in continuous scans, as compared to stop-and-go scans. However, there was a significant decrease in scan time in continuous scans. This improvement in scan time was 2-4 folds for lasers with low pulse repetition rate (10 Hz), and up to 7-12 folds for lasers with higher pulse repetition rate (7 kHz).
ISSN: 1077-260X
DOI: 10.1109/JSTQE.2018.2840320
Rights: © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at: [].
Fulltext Permission: open
Fulltext Availability: With Fulltext
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