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Appl. Sci. 2017, 7(12), 1262; doi:10.3390/app7121262

Photoacoustic Imaging in Oxygen Detection

Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong 999077, China
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Received: 5 October 2017 / Revised: 28 October 2017 / Accepted: 30 October 2017 / Published: 4 December 2017
(This article belongs to the Special Issue Biomedical Photoacoustic and Thermoacoustic Imaging)
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Abstract

Oxygen level, including blood oxygen saturation (sO2) and tissue oxygen partial pressure (pO2), are crucial physiological parameters in life science. This paper reviews the importance of these two parameters and the detection methods for them, focusing on the application of photoacoustic imaging in this scenario. sO2 is traditionally detected with optical spectra-based methods, and has recently been proven uniquely efficient by using photoacoustic methods. pO2, on the other hand, is typically detected by PET, MRI, or pure optical approaches, yet with limited spatial resolution, imaging frame rate, or penetration depth. Great potential has also been demonstrated by employing photoacoustic imaging to overcome the existing limitations of the aforementioned techniques. View Full-Text
Keywords: photoacoustic imaging; oxygen saturation; oxygen partial pressure photoacoustic imaging; oxygen saturation; oxygen partial pressure
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Cao, F.; Qiu, Z.; Li, H.; Lai, P. Photoacoustic Imaging in Oxygen Detection. Appl. Sci. 2017, 7, 1262.

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