Thermal fusion of intimal plaque with the arterial wall during coronary balloon angioplasty may significantly reduce the incidence of abrupt closure and may reduce the occurrence of delayed restenosis by improvement of luminal size and shape. Although Nd:YAG laser energy has been shown to be effecti
Effect of laser radiation on tissue during laser angioplasty
โ Scribed by A. J. Welch; J. W. Valvano; J. A. Pearce; L. J. Hayes; M. Motamedi
- Publisher
- John Wiley and Sons
- Year
- 1985
- Tongue
- English
- Weight
- 780 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0196-8092
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โฆ Synopsis
The thermal properties of adipose and ceramic atherosclerotic plaque deposits and normal arterial vessel wall were measured in the temperature range of 25-95ยฐC.
In general, the data indicate that fatty plaques exhibit the lowest thermal conductivity and thermal diffusivity of the three types, whereas calcified plaques seem to have the highest values. By using a video scanning thermograph, temperature rise was recorded in normal vessel wall and plaque during ablation of tissue. Theoretical analysis suggested that realistic modeling of laser angioplasty should account for scattering of light, water content, and ablation. This paper is a preliminary report of these results.
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