A Real‐time Color Doppler Marker for Echocardiographic Guidance of an Acoustically Active Extracorporeal Membrane Oxygenation Cannula. (12th November 2018)

• Record Type: Journal Article
• Authors: Belohlavek, Marek; Katayama, Minako; Vaitkus, Veronica V.; Kumar, Viksit; Fatemi, Mostafa; Grabham, Jason; Sandweiss, Bryan
• Is Part Of: Journal of ultrasound in medicine. Volume 38:Number 7(2019)
• Page Start: 1875
• Page End: 1885
• Publication Date: 2018-11-12
• Subjects: acoustically active cannula -- color Doppler guidance -- minimally invasive interventions -- ultrasound imaging guidance; Ultrasonics in medicine -- Periodicals; Ultrasonics; Ultrasonography; Ultrasonics in medicine; Electronic journals; Periodicals; Periodicals; 616.07543
• DOI: 10.1002/jum.14859
• Languages: English
• ISSNs: 0278-4297

Abstract

Abstract : 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.