Towards real-time magnetomotive ultrasound imaging

Forskningsoutput: Kapitel i bok/rapport/Conference proceedingKonferenspaper i proceeding

Abstract

Enabling detection of nanoparticles with ultrasound can open new application avenues for the ultrasound technique. Magnetomotive ultrasound (MMUS) is a technique under development which indirectly visualizes magnetic nanoparticles. In MMUS, an external time-varying magnetic field acts to displace the nanoparticles, and thus their closest surrounding. This induced displacement is subsequently detected and the nanoparticle location may then be revealed. The MMUS technique has shown to be promising in both phantom and animal studies but limited efforts have been made on optimizing the technique for clinical applications in the sense of providing real-time bedside imaging. In this work, the previously proposed MMUS algorithm is automated and implemented online on the ULA-OP scanner. To evaluate the online implementation, a phantom made of styrene-ethylene/butylene-styrene and mineral oil with a 2 % magnetic ferrite particle inclusion was used. MMUS displacement was calculated in the entire image area, 192×230 pixels, and in a sub-region of 130×90 pixels, covering the inclusion. It was found that the automated online implementation computes one full MMUS image in 2.8 seconds and the sub-region in 1.17 seconds, which should be compared to 1-2 minutes in post processing mode. An immediate on-screen change in the magnetomotive displacement could be observed as the applied magnetic field was altered.

Detaljer

Författare
Enheter & grupper
Externa organisationer
  • University of Florence
  • University of São Paulo
  • Skåne University Hospital
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Medicinsk bildbehandling

Nyckelord

Originalspråkengelska
Titel på värdpublikation2017 IEEE International Ultrasonics Symposium, IUS 2017
FörlagIEEE Computer Society
ISBN (elektroniskt)9781538633830
StatusPublished - 2017 okt 31
PublikationskategoriForskning
Peer review utfördJa
Evenemang2017 IEEE International Ultrasonics Symposium, IUS 2017 - Washington, USA
Varaktighet: 2017 sep 62017 sep 9

Konferens

Konferens2017 IEEE International Ultrasonics Symposium, IUS 2017
LandUSA
OrtWashington
Period2017/09/062017/09/09