Reducing artifacts in photoacoustic imaging by using multi-wavelength excitation and transducer displacement

Ho Nhu Y. Nguyen*, Wiendelt Steenbergen

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

5 Citations (Scopus)
26 Downloads (Pure)

Abstract

The occurrence of artifacts is a major challenge in photoacoustic imaging. The artifacts negatively affect the quality and reliability of the images. An approach using multiwavelength excitation has previously been reported for in-plane artifact identification. Yet, out-of-plane artifacts cannot be tackled with this method. Here we propose a new method using ultrasound transducer array displacement. By displacing the ultrasound transducer array axially, we can de-correlate out-of-plane artifacts with in-plane image features and thus remove them. Combining this new method with the previous one allows us to remove potentially completely both in-plane and out-of-plane artifacts in photoacoustic imaging. We experimentally demonstrate this with experiments in phantoms as well as in vivo.

Original languageEnglish
Pages (from-to)3124-3138
Number of pages15
JournalBiomedical optics express
Volume10
Issue number7
DOIs
Publication statusPublished - 1 Jul 2019

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