Vascular Test Phantom Metrology For Use In Photoacoustic Applications

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The field of photoacoustics is increasing as new discoveries are being made showing potential for a system that is capable of higher resolution medical imaging, noninvasive vital monitoring, and cancer diagnostics. This research focuses on the design, manufacturing, and testing of several test phantoms mimicking human finger vasculature for use in photoacoustic (PA) applications. Phantoms were designed for modularity, allowing the researcher to adjust channel diameter, length, depth, quantity, distention, pulse waveform, and material to meet any testing parameters. A series of different phantoms were created with these varying parameters. These phantoms were then tested with the PA system. The results of this experimentation were then compared to that of a human finger with the same test setup. A strong correlation between the output waveforms from each was observed. The change in depth with respect to the PA light source could also be observed from the captured data.

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Journal: TechConnect Briefs
Volume: TechConnect Briefs 2021
Published: October 18, 2021
Pages: 31 - 34
Industry sector: Advanced Materials & Manufacturing
Topics: Advanced Materials for Engineering Applications, Materials Characterization & Imaging
ISBN: 978-0-578-99550-2