Ablation of atheroma by laser energy. A comparative study of the efficacy of different temporal rates of energy deposition

Donald J. Ramsay; Philip J. Walker; Nicola G. Dadswell; James May; James A. Piper; Christine Wacher

doi:10.1117/12.17621

Ablation of atheroma by laser energy. A comparative study of the efficacy of different temporal rates of energy deposition

Donald J. Ramsay^*, Philip J. Walker, Nicola G. Dadswell, James May, James A. Piper, Christine Wacher

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

Abstract

Little systematic study has been made of the efficacy for different temporal rates of energy deposition. We have compared the efficacy for tissue ablation in cadaveric human aorta of three different laser systems with similar wavelengths in the visible (green) but different temporal rates of energy deposition. The laser sources were the continuous wave argon ion laser (514.5 nm), the high pulse energy, frequency doubled Nd:YAG laser (532 nm) and the copper vapour laser. The copper vapour laser is a high repetition rate, high average power, pulsed emitting in the green (511 nm) and yellow (578 nm) which has temporal characteristics intermediate between those of the Nd:YAG laser and the argon ion laser, and has the potential to be effective both for direct optical ablation and hot-tip thermal ablation.

Original language	English
Title of host publication	Laser-Tissue Interaction
Subtitle of host publication	Proceedings of SPIE
Editors	Steven L. Jacques
Place of Publication	Bellingham, WA
Publisher	SPIE
Pages	159-169
Number of pages	11
Volume	1202
ISBN (Print)	0819402435
DOIs	https://doi.org/10.1117/12.17621
Publication status	Published - 1990
Event	Proceedings of Laser-Tissue Interaction - Los Angeles, CA, USA Duration: 15 Jan 1990 → 17 Jan 1990

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Other	Proceedings of Laser-Tissue Interaction
City	Los Angeles, CA, USA
Period	15/01/90 → 17/01/90

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10.1117/12.17621

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@inproceedings{081b66ebdadc476c9189345430c5ef00,

title = "Ablation of atheroma by laser energy. A comparative study of the efficacy of different temporal rates of energy deposition",

abstract = "Little systematic study has been made of the efficacy for different temporal rates of energy deposition. We have compared the efficacy for tissue ablation in cadaveric human aorta of three different laser systems with similar wavelengths in the visible (green) but different temporal rates of energy deposition. The laser sources were the continuous wave argon ion laser (514.5 nm), the high pulse energy, frequency doubled Nd:YAG laser (532 nm) and the copper vapour laser. The copper vapour laser is a high repetition rate, high average power, pulsed emitting in the green (511 nm) and yellow (578 nm) which has temporal characteristics intermediate between those of the Nd:YAG laser and the argon ion laser, and has the potential to be effective both for direct optical ablation and hot-tip thermal ablation.",

author = "Ramsay, {Donald J.} and Walker, {Philip J.} and Dadswell, {Nicola G.} and James May and Piper, {James A.} and Christine Wacher",

year = "1990",

doi = "10.1117/12.17621",

language = "English",

isbn = "0819402435",

volume = "1202",

pages = "159--169",

editor = "Jacques, {Steven L.}",

booktitle = "Laser-Tissue Interaction",

publisher = "SPIE",

address = "United States",

note = "Proceedings of Laser-Tissue Interaction ; Conference date: 15-01-1990 Through 17-01-1990",

}

Ramsay, DJ, Walker, PJ, Dadswell, NG, May, J, Piper, JA & Wacher, C 1990, Ablation of atheroma by laser energy. A comparative study of the efficacy of different temporal rates of energy deposition. in SL Jacques (ed.), Laser-Tissue Interaction: Proceedings of SPIE. vol. 1202, SPIE, Bellingham, WA, pp. 159-169, Proceedings of Laser-Tissue Interaction, Los Angeles, CA, USA, 15/01/90. https://doi.org/10.1117/12.17621

Ablation of atheroma by laser energy. A comparative study of the efficacy of different temporal rates of energy deposition. / Ramsay, Donald J.; Walker, Philip J.; Dadswell, Nicola G. et al.
Laser-Tissue Interaction: Proceedings of SPIE. ed. / Steven L. Jacques. Vol. 1202 Bellingham, WA: SPIE, 1990. p. 159-169.

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

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T1 - Ablation of atheroma by laser energy. A comparative study of the efficacy of different temporal rates of energy deposition

AU - Ramsay, Donald J.

AU - Walker, Philip J.

AU - Dadswell, Nicola G.

AU - May, James

AU - Piper, James A.

AU - Wacher, Christine

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AB - Little systematic study has been made of the efficacy for different temporal rates of energy deposition. We have compared the efficacy for tissue ablation in cadaveric human aorta of three different laser systems with similar wavelengths in the visible (green) but different temporal rates of energy deposition. The laser sources were the continuous wave argon ion laser (514.5 nm), the high pulse energy, frequency doubled Nd:YAG laser (532 nm) and the copper vapour laser. The copper vapour laser is a high repetition rate, high average power, pulsed emitting in the green (511 nm) and yellow (578 nm) which has temporal characteristics intermediate between those of the Nd:YAG laser and the argon ion laser, and has the potential to be effective both for direct optical ablation and hot-tip thermal ablation.

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BT - Laser-Tissue Interaction

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Y2 - 15 January 1990 through 17 January 1990

ER -

Ablation of atheroma by laser energy. A comparative study of the efficacy of different temporal rates of energy deposition

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