Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
Erwin Alles, David Harris-Birtill, Michael Jaeger, Jeffrey Bamber
A clinical spectroscopic eiphotoacoustic scanner is presented, evaluated and optimised. The scanner combines a clinical ultrasound scanner with commercially available lasers to generate photocoustic images that are inherently coregistered with the ultrasound images and can be acquired by freehand scanning. Arrays of graphite rods are used to determine the point spread function (PSF, signal-to-nose (SNR and signal-to-clutter ratios (SCR) of the system and optimise the image quality by varying the illumination geometry. At a distance of 26 mm, mall spatial PSF extents are found (lateral 399 ± 80 μm, axial 340 ± 20 μm, elevational 1.43 ± 0.26 mm) and hence a high solution is obtained. Due to the strong optical scattering in biological tissue, the illumination geometry has virtually no effect on the image intensity, SNR and SCR, and hence practicality is the main concern when designing the clinical scan-head geometry.
Original language | English |
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Title of host publication | 2013 IEEE International Ultrasonics Symposium, IUS 2013 |
Pages | 1845-1848 |
Number of pages | 4 |
DOIs | |
Publication status | Published - 2013 |
Additional links | |
Event | 2013 IEEE International Ultrasonics Symposium, IUS 2013 - Prague, Czech Republic Duration: 21 Jul 2013 → 25 Jul 2013 |
Conference | 2013 IEEE International Ultrasonics Symposium, IUS 2013 |
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Country | Czech Republic |
City | Prague |
Period | 21/07/13 → 25/07/13 |
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Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
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ID: 250006107