Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 79-87 |
| Seitenumfang | 9 |
| Fachzeitschrift | Proceedings of SPIE - The International Society for Optical Engineering |
| Jahrgang | 3195 |
| Publikationsstatus | Veröffentlicht - 14 Jan. 1998 |
| Veranstaltung | 1997 Lasers-Tissue Interaction, Tissue Optics and Laser Welding III - San Remo, Italien Dauer: 5 Sept. 1997 → 8 Sept. 1997 |
Abstract
These studies are directed towards an on-line monitoring of tissue optical properties during medical laser diagnostics and therapy. The method of detection is based upon photoacoustic measurements. The detection of the laser induced acoustic transients was realized by means of piezoelectric transducers. Results concerning the optical properties of layered tissue-like samples are presented for two experimental configurations, i.e. transmission mode and reflection mode. The corresponding transients are calculated analytically and account for different influences which contribute to the signal, such as the laser parameters. Especially the effect of optoacoustic diffraction was investigated experimentally and verified theoretically. Its influence could be eliminated by applying fitting functions to the detected transients which take into account the distorting effect of diffraction.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Elektronische, optische und magnetische Materialien
- Physik und Astronomie (insg.)
- Physik der kondensierten Materie
- Informatik (insg.)
- Angewandte Informatik
- Mathematik (insg.)
- Angewandte Mathematik
- Ingenieurwesen (insg.)
- Elektrotechnik und Elektronik
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in: Proceedings of SPIE - The International Society for Optical Engineering, Jahrgang 3195, 14.01.1998, S. 79-87.
Publikation: Beitrag in Fachzeitschrift › Konferenzaufsatz in Fachzeitschrift › Forschung › Peer-Review
}
TY - JOUR
T1 - Characterization of tissue-like media using the photoacoustic method
AU - Lohmann, S.
AU - Zacher, M.
AU - Schmitz, Chr
AU - Lubatschowski, H.
AU - Ertmer, W.
PY - 1998/1/14
Y1 - 1998/1/14
N2 - These studies are directed towards an on-line monitoring of tissue optical properties during medical laser diagnostics and therapy. The method of detection is based upon photoacoustic measurements. The detection of the laser induced acoustic transients was realized by means of piezoelectric transducers. Results concerning the optical properties of layered tissue-like samples are presented for two experimental configurations, i.e. transmission mode and reflection mode. The corresponding transients are calculated analytically and account for different influences which contribute to the signal, such as the laser parameters. Especially the effect of optoacoustic diffraction was investigated experimentally and verified theoretically. Its influence could be eliminated by applying fitting functions to the detected transients which take into account the distorting effect of diffraction.
AB - These studies are directed towards an on-line monitoring of tissue optical properties during medical laser diagnostics and therapy. The method of detection is based upon photoacoustic measurements. The detection of the laser induced acoustic transients was realized by means of piezoelectric transducers. Results concerning the optical properties of layered tissue-like samples are presented for two experimental configurations, i.e. transmission mode and reflection mode. The corresponding transients are calculated analytically and account for different influences which contribute to the signal, such as the laser parameters. Especially the effect of optoacoustic diffraction was investigated experimentally and verified theoretically. Its influence could be eliminated by applying fitting functions to the detected transients which take into account the distorting effect of diffraction.
KW - Optical properties
KW - Optoacoustic diffraction
KW - Photoacoustic spectroscopy
KW - Piezoelectric transducer
KW - Pressure transients
UR - http://www.scopus.com/inward/record.url?scp=0031288672&partnerID=8YFLogxK
U2 - 10.1117/12.297880
DO - 10.1117/12.297880
M3 - Conference article
AN - SCOPUS:0031288672
VL - 3195
SP - 79
EP - 87
JO - Proceedings of SPIE - The International Society for Optical Engineering
JF - Proceedings of SPIE - The International Society for Optical Engineering
SN - 0277-786X
T2 - 1997 Lasers-Tissue Interaction, Tissue Optics and Laser Welding III
Y2 - 5 September 1997 through 8 September 1997
ER -