Matches in SemOpenAlex for { <https://semopenalex.org/work/W1965255507> ?p ?o ?g. }
Showing items 1 to 82 of
82
with 100 items per page.
- W1965255507 abstract "Frequency-domain correlation and spectral analysis photothermoacoustic (FD-PTA) imaging is a promising new technique, which is being developed to detect tumor masses in turbid biological tissue. Unlike conventional biomedical photoacoustics which uses time-of-flight acoustic information induced by a pulsed laser to indicate the tumor size and location, in this research, a new FD-PTA instrument featuring frequency sweep (chirp) and heterodyne modulation and lock-in detection of a continuous-wave laser source at $1064phantom{rule{0.3em}{0ex}}mathrm{nm}$ wavelength is constructed and tested for its depth profilometric capabilities with regard to turbid media imaging. Owing to the linear relationship between the depth of acoustic signal generation and the delay time of signal arrival to the transducer, information specific to a particular depth can be associated with a particular frequency in the chirp signal. Scanning laser-fluence modulation frequencies with a linear frequency sweep method preserves the depth-to-delay time linearity and recovers FD-PTA signals from a range of depths. Combining with the depth information carried by the back-propagated acoustic chirp signal at each scanning position, one could rapidly generate subsurface three-dimensional images of the scanning area at optimal signal-to-noise ratios and low laser fluences, a combination of tasks that is difficult or impossible by use of pulsed photoacoustic detection. In this paper, results of PTA scans performed on tissue mimicking control phantoms with various optical, acoustical, and geometrical properties are presented. A mathematical model is developed to study the laser-induced photothermoacoustic waves in turbid media. The model includes both the scattering and absorption properties of the turbid medium. A good agreement is obtained between the experimental and numerical results. It is concluded that frequency domain photothermoacoustics using a linear frequency sweep method and heterodyne lock-in detection has the potential to be a reliable tool for biomedical depth-profilometric imaging." @default.
- W1965255507 created "2016-06-24" @default.
- W1965255507 creator A5006843894 @default.
- W1965255507 creator A5012033218 @default.
- W1965255507 creator A5020456476 @default.
- W1965255507 creator A5046121183 @default.
- W1965255507 creator A5048656213 @default.
- W1965255507 date "2005-11-04" @default.
- W1965255507 modified "2023-10-18" @default.
- W1965255507 title "Laser photothermoacoustic heterodyned lock-in depth profilometry in turbid tissue phantoms" @default.
- W1965255507 cites W1975484388 @default.
- W1965255507 cites W2011210103 @default.
- W1965255507 cites W2072176273 @default.
- W1965255507 cites W2074948889 @default.
- W1965255507 cites W2152166926 @default.
- W1965255507 cites W2158181464 @default.
- W1965255507 cites W2486112781 @default.
- W1965255507 cites W3099726494 @default.
- W1965255507 doi "https://doi.org/10.1103/physreve.72.051908" @default.
- W1965255507 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/16383646" @default.
- W1965255507 hasPublicationYear "2005" @default.
- W1965255507 type Work @default.
- W1965255507 sameAs 1965255507 @default.
- W1965255507 citedByCount "15" @default.
- W1965255507 countsByYear W19652555072013 @default.
- W1965255507 countsByYear W19652555072014 @default.
- W1965255507 countsByYear W19652555072018 @default.
- W1965255507 countsByYear W19652555072019 @default.
- W1965255507 crossrefType "journal-article" @default.
- W1965255507 hasAuthorship W1965255507A5006843894 @default.
- W1965255507 hasAuthorship W1965255507A5012033218 @default.
- W1965255507 hasAuthorship W1965255507A5020456476 @default.
- W1965255507 hasAuthorship W1965255507A5046121183 @default.
- W1965255507 hasAuthorship W1965255507A5048656213 @default.
- W1965255507 hasBestOaLocation W19652555072 @default.
- W1965255507 hasConcept C104293457 @default.
- W1965255507 hasConcept C120665830 @default.
- W1965255507 hasConcept C121332964 @default.
- W1965255507 hasConcept C123079801 @default.
- W1965255507 hasConcept C132794960 @default.
- W1965255507 hasConcept C192562407 @default.
- W1965255507 hasConcept C199360897 @default.
- W1965255507 hasConcept C24890656 @default.
- W1965255507 hasConcept C2779843651 @default.
- W1965255507 hasConcept C41008148 @default.
- W1965255507 hasConcept C520434653 @default.
- W1965255507 hasConcept C56318395 @default.
- W1965255507 hasConcept C6260449 @default.
- W1965255507 hasConceptScore W1965255507C104293457 @default.
- W1965255507 hasConceptScore W1965255507C120665830 @default.
- W1965255507 hasConceptScore W1965255507C121332964 @default.
- W1965255507 hasConceptScore W1965255507C123079801 @default.
- W1965255507 hasConceptScore W1965255507C132794960 @default.
- W1965255507 hasConceptScore W1965255507C192562407 @default.
- W1965255507 hasConceptScore W1965255507C199360897 @default.
- W1965255507 hasConceptScore W1965255507C24890656 @default.
- W1965255507 hasConceptScore W1965255507C2779843651 @default.
- W1965255507 hasConceptScore W1965255507C41008148 @default.
- W1965255507 hasConceptScore W1965255507C520434653 @default.
- W1965255507 hasConceptScore W1965255507C56318395 @default.
- W1965255507 hasConceptScore W1965255507C6260449 @default.
- W1965255507 hasIssue "5" @default.
- W1965255507 hasLocation W19652555071 @default.
- W1965255507 hasLocation W19652555072 @default.
- W1965255507 hasLocation W19652555073 @default.
- W1965255507 hasOpenAccess W1965255507 @default.
- W1965255507 hasPrimaryLocation W19652555071 @default.
- W1965255507 hasRelatedWork W2015838393 @default.
- W1965255507 hasRelatedWork W2030264254 @default.
- W1965255507 hasRelatedWork W2052913792 @default.
- W1965255507 hasRelatedWork W2072614459 @default.
- W1965255507 hasRelatedWork W2088609863 @default.
- W1965255507 hasRelatedWork W2094923407 @default.
- W1965255507 hasRelatedWork W2105221896 @default.
- W1965255507 hasRelatedWork W2128937707 @default.
- W1965255507 hasRelatedWork W2131984831 @default.
- W1965255507 hasRelatedWork W2410614343 @default.
- W1965255507 hasVolume "72" @default.
- W1965255507 isParatext "false" @default.
- W1965255507 isRetracted "false" @default.
- W1965255507 magId "1965255507" @default.
- W1965255507 workType "article" @default.