Abstract
A CW Tm:YAG laser with a tuning range from 1.86 to 2.08 μm was used to create thermal lesions on chicken breast, calf liver, and porcine cornea. All tissue types were exposed to a constant irradiance (450 mW, 0.92 mm spot diameter, 0.5 and 1.0 second exposures) at five different wavelengths about the 2 μm water absorption peak. We estimated tissue absorption coefficients from the thermal history recorded by a 8 - 12 μm thermal camera. Our data confirmed that the absorption of all tissue types tested followed the water absorption curve. The effect of these differences in absorption upon the coagulation lesion size was evaluated by histologic measurements.
| Original language | English (US) |
|---|---|
| Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
| Editors | Steven L. Jacques |
| Pages | 102-113 |
| Number of pages | 12 |
| Volume | 2681 |
| State | Published - 1996 |
| Externally published | Yes |
| Event | Laser-Tissue Interaction VII - San Jose, CA, USA Duration: Jan 29 1996 → Feb 1 1996 |
Other
| Other | Laser-Tissue Interaction VII |
|---|---|
| City | San Jose, CA, USA |
| Period | 1/29/96 → 2/1/96 |
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ASJC Scopus subject areas
- Engineering(all)
Cite this
Wavelength dependency of soft tissue coagulation with a tunable cw laser. / Chan, Eric K.; Amini, Behrang; Barton, Jennifer K; Welch, Ashley J.; Thomsen, Sharon L M D; Stoneman, Robert C.; Esterowitz, Leon.
Proceedings of SPIE - The International Society for Optical Engineering. ed. / Steven L. Jacques. Vol. 2681 1996. p. 102-113.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Wavelength dependency of soft tissue coagulation with a tunable cw laser
AU - Chan, Eric K.
AU - Amini, Behrang
AU - Barton, Jennifer K
AU - Welch, Ashley J.
AU - Thomsen, Sharon L M D
AU - Stoneman, Robert C.
AU - Esterowitz, Leon
PY - 1996
Y1 - 1996
N2 - A CW Tm:YAG laser with a tuning range from 1.86 to 2.08 μm was used to create thermal lesions on chicken breast, calf liver, and porcine cornea. All tissue types were exposed to a constant irradiance (450 mW, 0.92 mm spot diameter, 0.5 and 1.0 second exposures) at five different wavelengths about the 2 μm water absorption peak. We estimated tissue absorption coefficients from the thermal history recorded by a 8 - 12 μm thermal camera. Our data confirmed that the absorption of all tissue types tested followed the water absorption curve. The effect of these differences in absorption upon the coagulation lesion size was evaluated by histologic measurements.
AB - A CW Tm:YAG laser with a tuning range from 1.86 to 2.08 μm was used to create thermal lesions on chicken breast, calf liver, and porcine cornea. All tissue types were exposed to a constant irradiance (450 mW, 0.92 mm spot diameter, 0.5 and 1.0 second exposures) at five different wavelengths about the 2 μm water absorption peak. We estimated tissue absorption coefficients from the thermal history recorded by a 8 - 12 μm thermal camera. Our data confirmed that the absorption of all tissue types tested followed the water absorption curve. The effect of these differences in absorption upon the coagulation lesion size was evaluated by histologic measurements.
UR - http://www.scopus.com/inward/record.url?scp=0029765905&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0029765905&partnerID=8YFLogxK
M3 - Conference contribution
SN - 0819420557
SN - 9780819420558
VL - 2681
SP - 102
EP - 113
BT - Proceedings of SPIE - The International Society for Optical Engineering
A2 - Jacques, Steven L.
ER -