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

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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.

Original languageEnglish
Title of host publicationPhotons Plus Ultrasound
Subtitle of host publicationImaging and Sensing 2021
EditorsAlexander A. Oraevsky, Lihong V. Wang
PublisherSPIE
ISBN (Electronic)9781510641198
DOIs
StatePublished - 2021
EventPhotons Plus Ultrasound: Imaging and Sensing 2021 - Virtual, Online, United States
Duration: 6 Mar 202111 Mar 2021

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume11642
ISSN (Print)1605-7422

Conference

ConferencePhotons Plus Ultrasound: Imaging and Sensing 2021
Country/TerritoryUnited States
CityVirtual, Online
Period6/03/2111/03/21

Keywords

  • biopsy
  • Photoacoustic
  • sensing
  • sentinel lymph node
  • solid-state dye laser

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