A real-time color doppler marker for echocardiographic guidance of an acoustically active extracorporeal membrane oxygenation cannula

Marek Belohlavek, Minako Katayama, Veronica V. Vaitkus, Viksit Kumar, Mostafa Fatemi, Jason Grabham, Bryan Sandweiss

Research output: Contribution to journalArticle

1 Scopus citations


B-mode ultrasound imaging guidance of cannulas can be compromised by noise, artifacts, and echogenicity that is not distinctive from that of surrounding anatomy. We have modified a venovenous extracorporeal membrane oxygenation cannula by embedding piezoelectric crystals into each of its 3 blood flow ports. Each vibrating crystal acoustically interacts with a Doppler imaging signal and produces an instantaneous color marker. The aim of this study was to compare identification of the extracorporeal membrane oxygenation cannula ports by B-mode imaging versus the color Doppler marker. Unlike B-mode imaging, the color Doppler marker identified the corresponding port even in highly challenging closed-chest scans in anesthetized pigs. The method could improve guidance accuracy of cannulas by ultrasound scans.

Original languageEnglish (US)
Pages (from-to)1875-1885
Number of pages11
JournalJournal of Ultrasound in Medicine
Issue number7
StatePublished - Jan 1 2019



  • Color Doppler guidance
  • Minimally invasive interventions
  • Ultrasound imaging guidance
  • —acoustically active cannula

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging

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