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The International Journal of Cardiac Imaging

, Volume 6, Issue 3–4, pp 231–237 | Cite as

Ultrasound guidance of laser atherectomy

  • H. T. Aretz
  • K. W. Gregory
  • M. A. Martinelli
  • R. E. Gregg
  • E. G. LeDet
  • G. F. Hatch
  • T. Sedlacek
  • W. C. Haase
Article

Abstract

Intravascular ultrasound imaging catheters and forward firing laser atherectomy systems are both being used in the coronary vascular tree of man. When used in conjunction, ultrasound imaging may reduce the probability of perforation and dissection related to laser atherectomy. A novel system is presented which combines ultrasound imaging and laser atherectomy capabilities on the same catheter. The system incorporates a holmium YAG laser directed perpendicular to the long axis of the catheter along with a co-directional ultrasound sensor. Ultrasound images are assembled by computer using the angle of the catheter tip and its linear advance associated with each ultrasound echo signal.In vivo experimental results are presented.

Key words

intravascular ultrasound laser atherectomy 

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Copyright information

© Kluwer Academic Publishers 1991

Authors and Affiliations

  • H. T. Aretz
    • 1
  • K. W. Gregory
    • 1
  • M. A. Martinelli
    • 2
  • R. E. Gregg
    • 3
  • E. G. LeDet
    • 3
  • G. F. Hatch
    • 3
  • T. Sedlacek
    • 3
  • W. C. Haase
    • 3
  1. 1.Department of PathologyNew England Deaconess HospitalBostonUSA
  2. 2.Wellman LaboratoryMassachusetts General HospitalBoston
  3. 3.Intra-Sonix, Inc.Burlington

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