Intraluminal laser atherectomy with ultrasound and electromagnetic guidance

Kenton Gregory, H. T. Aretz

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

3 Citations (Scopus)

Abstract

The Magellan coronary laser atherectomy system is described. It uses high-resolution ultrasound imaging and electromagnetic sensing to provide real-time guidance and control of laser therapy in the coronary arteries. The system consists of a flexible catheter, an electromagnetic navigation antenna, a sensor signal processor and a computer for image processing and display. The small, flexible catheter combines an ultrasound transducer and laser delivery optics, aimed at the artery wall, and an electromagnetic receiving sensor. An extra-corporeal electromagnetic transmit antenna, in combination with catheter sensors, locates the position of the ultrasound and laser beams in the artery. Navigation and ultrasound data are processed electronically to produce real-time, transverse and axial cross-section images of the artery wall at selected locations. By exploiting the ability of ultrasound to image beneath the surface of artery walls, it is possible to identify candidate treatment sites and perform safe radial laser debulking of atherosclerotic plaque with reduced danger of perforation. The utility of the system in plaque identification and ablation is demonstrated with imaging and experimental results.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsGeorge S. Abela, Abraham Katzir
PublisherPubl by Int Soc for Optical Engineering
Pages217-225
Number of pages9
Volume1425
StatePublished - 1991
Externally publishedYes
EventProceedings of Diagnostic and Therapeutic Cardiovascular Interventions - Los Angeles, CA, USA
Duration: Jan 20 1991Jan 22 1991

Other

OtherProceedings of Diagnostic and Therapeutic Cardiovascular Interventions
CityLos Angeles, CA, USA
Period1/20/911/22/91

Fingerprint

Electronic guidance systems
arteries
Ultrasonics
electromagnetism
Catheters
Lasers
lasers
navigation
sensors
Sensors
Navigation
antennas
Antennas
Imaging techniques
perforation
Ablation
hazards
ablation
Laser beams
image processing

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Gregory, K., & Aretz, H. T. (1991). Intraluminal laser atherectomy with ultrasound and electromagnetic guidance. In G. S. Abela, & A. Katzir (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 1425, pp. 217-225). Publ by Int Soc for Optical Engineering.

Intraluminal laser atherectomy with ultrasound and electromagnetic guidance. / Gregory, Kenton; Aretz, H. T.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / George S. Abela; Abraham Katzir. Vol. 1425 Publ by Int Soc for Optical Engineering, 1991. p. 217-225.

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

Gregory, K & Aretz, HT 1991, Intraluminal laser atherectomy with ultrasound and electromagnetic guidance. in GS Abela & A Katzir (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 1425, Publ by Int Soc for Optical Engineering, pp. 217-225, Proceedings of Diagnostic and Therapeutic Cardiovascular Interventions, Los Angeles, CA, USA, 1/20/91.
Gregory K, Aretz HT. Intraluminal laser atherectomy with ultrasound and electromagnetic guidance. In Abela GS, Katzir A, editors, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 1425. Publ by Int Soc for Optical Engineering. 1991. p. 217-225
Gregory, Kenton ; Aretz, H. T. / Intraluminal laser atherectomy with ultrasound and electromagnetic guidance. Proceedings of SPIE - The International Society for Optical Engineering. editor / George S. Abela ; Abraham Katzir. Vol. 1425 Publ by Int Soc for Optical Engineering, 1991. pp. 217-225
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