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Karlas, A. ; Kallmayer, M.* ; Bariotakis, M. ; Fasoula, N.-A. ; Liapis, E. ; Hyafil, F.* ; Pelisek, J.* ; Wildgruber, M.* ; Eckstein, H.H.* ; Ntziachristos, V.

Multispectral optoacoustic tomography of lipid and hemoglobin contrast in human carotid atherosclerosis.

Photoacoustics 23:100283 (2021)
Verlagsversion DOI PMC
Open Access Gold
Creative Commons Lizenzvertrag
Several imaging techniques aim at identifying features of carotid plaque instability but come with limitations, such as the use of contrast agents, long examination times and poor portability. Multispectral optoacoustic tomography (MSOT) employs light and sound to resolve lipid and hemoglobin content, both features associated with plaque instability, in a label-free, fast and highly portable way. Herein, 5 patients with carotid atherosclerosis, 5 healthy volunteers and 2 excised plaques, were scanned with handheld MSOT. Spectral unmixing allowed visualization of lipid and hemoglobin content within three ROIs: whole arterial cross-section, plaque and arterial lumen. Calculation of the fat-blood-ratio (FBR) value within the ROIs enabled the differentiation between patients and healthy volunteers (P = 0.001) and between plaque and lumen in patients (P = 0.04). Our results introduce MSOT as a tool for molecular imaging of human carotid atherosclerosis and open new possibilities for research and clinical assessment of carotid plaques.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Cardiovascular Disease ; Carotid Artery Stenosis ; Carotid Plaque ; Molecular Imaging ; Msot ; Photoacoustic Imaging ; Stroke
Sprache englisch
Veröffentlichungsjahr 2021
HGF-Berichtsjahr 2021
ISSN (print) / ISBN 2213-5979
Zeitschrift Photoacoustics
Quellenangaben Band: 23, Heft: , Seiten: , Artikelnummer: 100283 Supplement: ,
Verlag Elsevier
Verlagsort Hackerbrucke 6, 80335 Munich, Germany
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Biological and Medical Imaging (IBMI)
POF Topic(s) 30205 - Bioengineering and Digital Health
Forschungsfeld(er) Enabling and Novel Technologies
PSP-Element(e) G-505500-001
G-505593-001
G-509200-001
Förderungen Helmholtz Zentrum Munchen
DZHK (German Centre for Cardiovascular Research)
European Research Council (ERC) under the European Union
DOI 10.1016/j.pacs.2021.100283
WOS ID WOS:000686737600001
Scopus ID 85111296683
PubMed ID 34381689
Erfassungsdatum 2021-08-06
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