Details
| Original language | English |
|---|---|
| Title of host publication | Optical Biopsy and Tissue Optics |
| Publisher | SPIE |
| Pages | 37-45 |
| Number of pages | 9 |
| Publication status | Published - 16 Nov 2000 |
| Event | EOS/SPIE European Biomedical Optics Week - Amsterdam, Netherlands Duration: 4 Jul 2000 → 8 Jul 2000 |
Publication series
| Name | Proceedings of SPIE - The International Society for Optical Engineering |
|---|---|
| Volume | 4161 |
| ISSN (Print) | 0277-786X |
Abstract
In this work, the localization of the ciliary body region of porcine eyes with laser optoacoustics was realized. The principle of laser optoacoustics combines the advantages of ultrasound and optical tomography. The absorption of short laser pulses in the near infrared generates thermoelastic stress waves in the ciliary muscle and the underlying pigmented epithelial layers. These stress transients were detected at the surface of the sclera with piezoelectric transducers in order to analyze the structure. The optoacoustical measurements of the ciliary body region at different positions from the corneoscleral limbus were composed to a grayscale image, which could be qualitatively compared to histological sections of this region. In these images the pigmented layers can be localized. The influence of the detectional wavelength on the optoacoustical signal in the NIR between 750 and 1052 nm was investigated. Furthermore, changes in the optoacoustic signal due to coagulation with a diode laser using typical therapeutical parameters could be observed.
Keywords
- Ciliary body, Glaucoma, Laser cyclophotocoagulation, Laser induced ultrasound, Optoacoustics, Pressure transient
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Condensed Matter Physics
- Computer Science(all)
- Computer Science Applications
- Mathematics(all)
- Applied Mathematics
- Engineering(all)
- Electrical and Electronic Engineering
Cite this
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Optical Biopsy and Tissue Optics. SPIE, 2000. p. 37-45 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 4161).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Optoacoust ical Tissue D ifferentiat ion For On-Line Therapy Control
AU - Oberheide, Uwe
AU - Jansen, Birte
AU - Bruder, Ingo
AU - Lubatschowski, Holger
AU - Welling, Herbert
AU - Ertmer, Wolfgang
PY - 2000/11/16
Y1 - 2000/11/16
N2 - In this work, the localization of the ciliary body region of porcine eyes with laser optoacoustics was realized. The principle of laser optoacoustics combines the advantages of ultrasound and optical tomography. The absorption of short laser pulses in the near infrared generates thermoelastic stress waves in the ciliary muscle and the underlying pigmented epithelial layers. These stress transients were detected at the surface of the sclera with piezoelectric transducers in order to analyze the structure. The optoacoustical measurements of the ciliary body region at different positions from the corneoscleral limbus were composed to a grayscale image, which could be qualitatively compared to histological sections of this region. In these images the pigmented layers can be localized. The influence of the detectional wavelength on the optoacoustical signal in the NIR between 750 and 1052 nm was investigated. Furthermore, changes in the optoacoustic signal due to coagulation with a diode laser using typical therapeutical parameters could be observed.
AB - In this work, the localization of the ciliary body region of porcine eyes with laser optoacoustics was realized. The principle of laser optoacoustics combines the advantages of ultrasound and optical tomography. The absorption of short laser pulses in the near infrared generates thermoelastic stress waves in the ciliary muscle and the underlying pigmented epithelial layers. These stress transients were detected at the surface of the sclera with piezoelectric transducers in order to analyze the structure. The optoacoustical measurements of the ciliary body region at different positions from the corneoscleral limbus were composed to a grayscale image, which could be qualitatively compared to histological sections of this region. In these images the pigmented layers can be localized. The influence of the detectional wavelength on the optoacoustical signal in the NIR between 750 and 1052 nm was investigated. Furthermore, changes in the optoacoustic signal due to coagulation with a diode laser using typical therapeutical parameters could be observed.
KW - Ciliary body
KW - Glaucoma
KW - Laser cyclophotocoagulation
KW - Laser induced ultrasound
KW - Optoacoustics
KW - Pressure transient
UR - http://www.scopus.com/inward/record.url?scp=0034587021&partnerID=8YFLogxK
U2 - 10.1117/12.409333
DO - 10.1117/12.409333
M3 - Conference contribution
AN - SCOPUS:0034587021
T3 - Proceedings of SPIE - The International Society for Optical Engineering
SP - 37
EP - 45
BT - Optical Biopsy and Tissue Optics
PB - SPIE
T2 - EOS/SPIE European Biomedical Optics Week
Y2 - 4 July 2000 through 8 July 2000
ER -