Optimal laser wavelength for photoacoustic imaging of breast microcalcifications

Jeeun Kang, Eun Kyung Kim, Jin Young Kwak, Yangmo Yoo, Tai Kyong Song, Jin Ho Chang

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)


This paper presents photoacoustic imaging (PAI) for real-time detection of micro-scale calcifications (e.g., 1 mm) in the breast, which are an indicator of the cancer occurrence. Optimal wavelength of incident laser for the microcalcification imaging was ascertained through ex vivo experiments with seven breast specimens of volunteers. In the ex vivo experiments, the maximum amplitude of photoacoustic signals from the microcalcifications occurred when the laser wavelength ranged from 690 to 700 nm. This result demonstrated that PAI can serve as a real-time imaging and guidance tool for diagnosis and biopsy of the breast microcalcifications.

Original languageEnglish
Article number153702
JournalApplied Physics Letters
Issue number15
Publication statusPublished - 2011 Oct 10

Bibliographical note

Funding Information:
This work was supported by International Collaborative R&D Program (2010-TD-500409-001) funded by the Ministry of Knowledge Economy (MKE), Korea.

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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