Fluid-core optical transmission for laser angioplasty

Kenton Gregory, R. Rox Anderson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Optically transparent fluids were investigated as a means of transmitting laser energy (LE) in laser angioplasty catheters as an alternative to fused silica fibers. A catheter was constructed which transmits LE through a flowing stream of iodinated contrast media. LE is launched into a stream of contrast media and is internally reflected by a lower index of refraction cladding-providing transmission efficiency of 75%. As the stream exits the catheter, blood acts as an optical cladding and allows transmission 1 cm distal to the catheter tip. The low pressure stream removes intervening blood and provides an atraumatic surface for light interaction with target tissues. Fluoroscopy of the contrast stream allows real-time visualization of the catheter, the site of LE delivery and distal vasculature. We conclude that a fluid-core laser angioplasty catheter can transmit high peak-power laser energy and offers simplicity, blood removal, improved flexibility and real-time imaging during intravascular LE delivery.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsAbraham Katzir
PublisherPubl by Int Soc for Optical Engineering
Pages156-161
Number of pages6
Volume1201
ISBN (Print)0819402427
StatePublished - 1990
Externally publishedYes
EventProceedings of Optical Fibers in Medicine V - Los Angeles, CA, USA
Duration: Jan 14 1990Jan 19 1990

Other

OtherProceedings of Optical Fibers in Medicine V
CityLos Angeles, CA, USA
Period1/14/901/19/90

Fingerprint

Light transmission
Catheters
Fluids
Lasers
fluids
lasers
Contrast media
blood
Blood
energy
delivery
fluoroscopy
transmission efficiency
Fused silica
Refraction
refraction
flexibility
Visualization
low pressure
Tissue

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Gregory, K., & Anderson, R. R. (1990). Fluid-core optical transmission for laser angioplasty. In A. Katzir (Ed.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 1201, pp. 156-161). Publ by Int Soc for Optical Engineering.

Fluid-core optical transmission for laser angioplasty. / Gregory, Kenton; Anderson, R. Rox.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / Abraham Katzir. Vol. 1201 Publ by Int Soc for Optical Engineering, 1990. p. 156-161.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Gregory, K & Anderson, RR 1990, Fluid-core optical transmission for laser angioplasty. in A Katzir (ed.), Proceedings of SPIE - The International Society for Optical Engineering. vol. 1201, Publ by Int Soc for Optical Engineering, pp. 156-161, Proceedings of Optical Fibers in Medicine V, Los Angeles, CA, USA, 1/14/90.
Gregory K, Anderson RR. Fluid-core optical transmission for laser angioplasty. In Katzir A, editor, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 1201. Publ by Int Soc for Optical Engineering. 1990. p. 156-161
Gregory, Kenton ; Anderson, R. Rox. / Fluid-core optical transmission for laser angioplasty. Proceedings of SPIE - The International Society for Optical Engineering. editor / Abraham Katzir. Vol. 1201 Publ by Int Soc for Optical Engineering, 1990. pp. 156-161
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