A new high resolution color flow system using an eigendecomposition-based adaptive filter for clutter rejection

IEEE Trans Ultrason Ferroelectr Freq Control. 2002 Dec;49(12):1739-54. doi: 10.1109/tuffc.2002.1159852.

Abstract

We present a new signal processing strategy for high frequency color flow mapping in moving tissue environments. A new application of an eigendecomposition-based clutter rejection filter is presented with modifications to deal with high blood-to-clutter ratios (BCR). Additionally, a new method for correcting blood velocity estimates with an estimated tissue motion profile is detailed. The performance of the clutter filter and velocity estimation strategies is quantified using a new swept-scan signal model. In vivo color flow images are presented to illustrate the potential of the system for mapping blood flow in the microcirculation with external tissue motion.

Publication types

  • Research Support, U.S. Gov't, P.H.S.
  • Corrected and Republished Article

MeSH terms

  • Algorithms*
  • Blood Flow Velocity
  • Computer Simulation
  • Connective Tissue / physiology
  • Fingers / blood supply
  • Fingers / diagnostic imaging
  • Fingers / physiology
  • Humans
  • Image Enhancement / methods*
  • Microcirculation / diagnostic imaging*
  • Microcirculation / physiology*
  • Models, Cardiovascular*
  • Models, Statistical
  • Movement / physiology
  • Phantoms, Imaging
  • Signal Processing, Computer-Assisted*
  • Statistics as Topic
  • Stochastic Processes
  • Ultrasonography, Doppler, Color / methods*