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Washington University in St. Louis

Multi-contrast Photoacoustic Microscopy

Abstract

dc:description.abstract

<p>Photoacoustic microscopy is a hybrid imaging modality with high spatial resolution, moderate imaging depth, excellent imaging contrast and functional imaging capability. Taking full advantage of this powerful weapon, we have investigated different anatomical, functional, flow dynamic and metabolic parameter measurements using photoacoustic microscopy. Specifically, Evans-blue dye was used to enhance photoacoustic microscopy of capillaries; label-free transverse and axial blood flow was measured based on bandwidth broadening and time shift of the photoacoustic signals; metabolic rate of oxygen was quantified <italic>in vivo</italic> from all the five parameters measured by photoacoustic microcopy; whole cross-sectional imaging of small intestine was achieved on a double-illumination photoacoustic microscopy with extended depth of focus and imaging depth; hemodynamic imaging was performed on a MEMS-mirror enhanced photoacoustic microscopy with a cross-sectional imaging rate of 400 Hz. As a maturing imaging technique, PAM is expected to find new applications in both fundamental life science and clinical practice.</p>

Degree

thesis:*
Name thesis:degree_name
Doctor of Philosophy (PhD)
Level thesis:degree_level
Dissertation
Discipline thesis:degree_discipline
Biomedical Engineering
Year dc:date.available
2012

Author and committee

dc:creator, dc:contributor.*
Author dc:creator
  • Yao, Junjie
Contributors dc:contributor
  • Lihong V Wang

Subjects

dc:subject × 6

Rights

Language dc:language
English (en)

Identifiers

dc:identifier.*
OAI identifier oai:identifier
oai:openscholarship.wustl.edu:etd-2025

Chain of custody

source
Harvested from
Washington University in St. Louis
Base URL
openscholarship.wustl.edu/do/oai/
Last updated
2026-07-24
Source record
OAI-PMH GetRecord
citation

Yao, Junjie. Multi-contrast Photoacoustic Microscopy. Dissertation thesis, 2012. https://openscholarship.wustl.edu/etd/1025