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dc.contributor.authorSharma, Arunimaen
dc.contributor.authorKalva, Sandeep Kumaren
dc.contributor.authorPramanik, Manojiten
dc.identifier.citationSharma, 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.2018.2840320en
dc.description.abstractPhotoacoustic 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).en
dc.description.sponsorshipNMRC (Natl Medical Research Council, S’pore)en
dc.description.sponsorshipMOH (Min. of Health, S’pore)en
dc.format.extent9 p.en
dc.relation.ispartofseriesIEEE Journal of Selected Topics in Quantum Electronicsen
dc.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: [].en
dc.subjectDRNTU::Engineering::Chemical engineeringen
dc.subjectCircular Scanning Geometryen
dc.subjectContinuous Scanningen
dc.titleA comparative study of continuous versus stop-and-go scanning in circular scanning photoacoustic tomographyen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Chemical and Biomedical Engineeringen
dc.description.versionAccepted versionen
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