Handheld photoacoustic detector and its potential application for sentinel lymph node sensing

Byullee Park; Moongyu Han; Jeongwoo Park; Taejeong Kim; Won Jong Kim; Chulhong Kim

doi:10.1117/12.2577060

17 March 2021 Handheld photoacoustic detector and its potential application for sentinel lymph node sensing

Byullee Park, Moongyu Han, Jeongwoo Park, Taejeong Kim, Won Jong Kim, Chulhong Kim

Proceedings Volume 11642, Photons Plus Ultrasound: Imaging and Sensing 2021; 1164234 (2021) https://doi.org/10.1117/12.2577060
Event: SPIE BiOS, 2021, Online Only

Conference Poster

Abstract

We developed a handheld photoacoustic signal detector for sentinel lymph node (SLN) localization. The detector consists of a solid-state dye laser and a transparent ultrasound transducer (TUT). The TUT was designed as a focused-type. The TUT had an 8 MHz center frequency with a 30% bandwidth. Using the detector, we confirmed photoacoustic signals in a tube filled with methylene blue (MB) below 10-mm thick chicken tissues. We successfully performed in vivo photoacoustic detection for MB injected SLN localization and subcutaneously injected melanoma assessments. We believe that our detector will play an effective role in SLN localization and biopsy.

Conference Presentation

Citation Download Citation

Byullee Park, Moongyu Han, Jeongwoo Park, Taejeong Kim, Won Jong Kim, and Chulhong Kim "Handheld photoacoustic detector and its potential application for sentinel lymph node sensing", Proc. SPIE 11642, Photons Plus Ultrasound: Imaging and Sensing 2021, 1164234 (17 March 2021); https://doi.org/10.1117/12.2577060

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