caa a22 4500 528794507 20191024035342.0 cr unu---uuuuu 180925s2018 xx s 000 0 eng 2213-5979 10.1016/j.pacs.2018.02.001 doi (BORIS)oai:boris.unibe.ch:120073 620 ddc Rapid scanning wide-field clutter elimination in epi-optoacoustic imaging using comb LOVIT [Elektronische Daten] [Tigran Petrosyan, Maria Theodorou, Jeff Bamber, Martin Frenz, Michael Jaeger] publishedVersion openAccess eu-repo Epi-style optoacoustic (OA) imaging provides flexibility by integrating the irradiation optics and ultrasound receiver, yet clutter generated by optical absorption near the probe obscures deep OA sources. Localised vibration tagging (LOVIT) retrieves OA signal from images that are acquired with and without a preceding ultrasonic pushing beam: Radiation force leads to a phase shift of signals coming from the focal area resulting in their visibility in a difference image, whereas clutter from outside the pushing beam is eliminated. Disadvantages of a single-focus approach are residual clutter from inside the pushing beam above the focus, and time-intensive scanning of the focus to retrieve a large field-of-view. To speed up acquisition, we propose to create multiple foci in parallel, forming comb-shaped ARF patterns. By subtracting OA images obtained with interleaved combs, this technique moreover results in greatly improved clutter reduction in phantoms mimicking optical, acoustic and elastic properties of breast tissue. Petrosyan Tigran joint author Theodorou Maria joint author Bamber Jeff joint author Frenz Martin joint author Jaeger Michael joint author Photoacoustics 10, pp. 20-30 2213-5979 479723796 https://boris.unibe.ch/120073/1/1-s2.0-S2213597917300423-main.pdf text/html WWW-Backlink auf das Repository 1 info:eu-repo/semantics/article boris PeerReviewed boris peerstatus BORIS 856 40 https://boris.unibe.ch/120073/1/1-s2.0-S2213597917300423-main.pdf text/html WWW-Backlink auf das Repository BORIS 700 1- Petrosyan Tigran joint author BORIS 700 1- Theodorou Maria joint author BORIS 700 1- Bamber Jeff joint author BORIS 700 1- Frenz Martin joint author BORIS 700 1- Jaeger Michael joint author BORIS 773 0- Photoacoustics 10, pp. 20-30 2213-5979 479723796 BK010053 XK010053 XK010000 BORIS BORIS BORIS info:eu-repo/semantics/article openAccess