Experimental evaluation of a non-linear coded excitation method for contrast imaging

Jerome Borsboom, Chien Ting Chin, N. de Jong

Research output: Contribution to journalArticleAcademicpeer-review

17 Citations (Scopus)

Abstract

Previously, we have shown that for a single bubble, using chirps as the excitation signal improves both the linear and the non-linear response. Computer simulations of randomly distributed contrast agent bubbles show an increase of 10–13 dB in response when comparing pulse excitations with chirp excitations that have equal bandwidths and peak amplitudes. Second harmonic compression of simulated bubble echoes with chirp excitation shows low side-lobe levels and limited loss of axial resolution when compared to pulse excitation. Experimental results from water tank measurements with SonoVue™ contrast agent are in agreement with computer simulations showing increased signal-to-noise ratio and an increase of 12 dB at the second harmonic when comparing pulse and chirp excitation.
Original languageUndefined
Pages (from-to)671-675
Number of pages5
JournalUltrasonics
Volume42
DOIs
Publication statusPublished - 2004

Keywords

  • Coded excitation
  • Ultrasound
  • IR-50129
  • Contrast agent
  • Chirp
  • METIS-223437

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