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Spectroscopic unwanted signal filters for discrimination of vulnerable plaque and method therefor

  • US 7,689,268 B2
  • Filed: 04/30/2003
  • Issued: 03/30/2010
  • Est. Priority Date: 08/05/2002
  • Status: Active Grant
First Claim
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1. A method for analyzing blood vessels in the presence of intervening unwanted spectral signal, the method comprising:

  • irradiating blood vessel walls through intervening fluid;

    collecting spectral responses;

    determining spectral responses of the blood vessel walls from the collected spectral responses by applying a filter generated using a spectral response of the intervening fluid to remove or deemphasize a contribution of the intervening fluid relative to a signal from the blood vessel walls; and

    assessing states of the blood vessel walls in response to the determined spectral responses of the blood vessel walls.

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