PMID- 30112278
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20230928
IS  - 2213-5979 (Print)
IS  - 2213-5979 (Electronic)
IS  - 2213-5979 (Linking)
VI  - 11
DP  - 2018 Sep
TI  - The application of frequency-domain photoacoustics to temperature-dependent 
      measurements of the Gruneisen parameter in lipids.
PG  - 56-64
LID - 10.1016/j.pacs.2018.07.005 [doi]
AB  - The Gruneisen parameter is an essential factor in biomedical photoacoustic (PA) 
      diagnostics. In most PA imaging applications, the variation of the Gruneisen 
      parameter with tissue type is insignificant. This is not the case for PA imaging 
      and characterization of lipids, as they have a very distinct Gruneisen parameter 
      compared with other tissue types. One example of PA applications involving lipids 
      is the imaging and characterization of atherosclerotic plaques. Intravascular 
      photoacoustic (IVPA) imaging is a promising diagnostic tool that can evaluate 
      both plaque severity and composition. The literature for IVPA has mainly focused 
      on using the difference in absorption coefficients between plaque components and 
      healthy arterial tissues. However, the Gruneisen parameters for lipids and their 
      behavior with temperature have not been well established in the literature. In 
      this study we employ frequency-domain photoacoustic measurements to estimate the 
      Gruneisen parameter by virtue of the ability of this modality to independently 
      measure both the absorption coefficient and the Gruneisen parameter through the 
      use of the phase channel. The values of the Gruneisen parameters of some lipids 
      are calculated as functions of temperature in the range 25-45  degrees C.
FAU - Liang, Simon
AU  - Liang S
AD  - Center for Advanced Diffusion-Wave and Photoacoustic Technologies (CADIPT), 
      Department of Mechanical and Industrial Engineering, University of Toronto, 
      Toronto, M5S 3G8, Canada.
AD  - Department of Medicine, University of British Columbia, Canada.
FAU - Lashkari, Bahman
AU  - Lashkari B
AD  - Center for Advanced Diffusion-Wave and Photoacoustic Technologies (CADIPT), 
      Department of Mechanical and Industrial Engineering, University of Toronto, 
      Toronto, M5S 3G8, Canada.
FAU - Choi, Sung Soo Sean
AU  - Choi SSS
AD  - Center for Advanced Diffusion-Wave and Photoacoustic Technologies (CADIPT), 
      Department of Mechanical and Industrial Engineering, University of Toronto, 
      Toronto, M5S 3G8, Canada.
FAU - Ntziachristos, Vasilis
AU  - Ntziachristos V
AD  - Institute for Biological and Medical Imaging, Technische Universitat Munchen and 
      Helmholtz Zentrum Munchen, Ingolstadter Landstrasse 1, 85764 Neuherberg, Germany.
FAU - Mandelis, Andreas
AU  - Mandelis A
AD  - Center for Advanced Diffusion-Wave and Photoacoustic Technologies (CADIPT), 
      Department of Mechanical and Industrial Engineering, University of Toronto, 
      Toronto, M5S 3G8, Canada.
AD  - Institute of Biomaterials and Biomedical Engineering, University of Toronto, 
      Toronto, M5S 3G9, Canada.
AD  - Institute for Biological and Medical Imaging, Technische Universitat Munchen and 
      Helmholtz Zentrum Munchen, Ingolstadter Landstrasse 1, 85764 Neuherberg, Germany.
LA  - eng
PT  - Journal Article
DEP - 20180803
PL  - Germany
TA  - Photoacoustics
JT  - Photoacoustics
JID - 101622604
PMC - PMC6091231
OTO - NOTNLM
OT  - Atherosclerosis
OT  - Frequency-domain biomedical photoacoustics
OT  - Gruneisen parameter
OT  - Intravascular imaging
OT  - Ultrasound
EDAT- 2018/08/17 06:00
MHDA- 2018/08/17 06:01
PMCR- 2018/08/03
CRDT- 2018/08/17 06:00
PHST- 2018/03/30 00:00 [received]
PHST- 2018/07/15 00:00 [revised]
PHST- 2018/07/26 00:00 [accepted]
PHST- 2018/08/17 06:00 [entrez]
PHST- 2018/08/17 06:00 [pubmed]
PHST- 2018/08/17 06:01 [medline]
PHST- 2018/08/03 00:00 [pmc-release]
AID - S2213-5979(18)30013-2 [pii]
AID - 10.1016/j.pacs.2018.07.005 [doi]
PST - epublish
SO  - Photoacoustics. 2018 Aug 3;11:56-64. doi: 10.1016/j.pacs.2018.07.005. eCollection 
      2018 Sep.