Doppler colour flow imaging and flow quantification with a novel forward-viewing intravascular ultrasound system

L Gatzoulis, K V Ramnarine, S D Pye, T Anderson, D E Newby, P R Hoskins, W N McDicken

Research output: Contribution to journalArticlepeer-review

Abstract

The aim of this work was to investigate the potential of a novel forward-viewing intravascular ultrasound (IVUS) system for flow quantification and colour flow imaging combined with B-mode imaging. A stiff 3.8-mm diameter catheter was used to scan a 72degrees sector ahead of its tip. Operating at 30 MHz, the catheter was integrated with an IVUS scanner and a radiolfrequency (RF) data-acquisition system. RF data were software processed for producing B-mode images and deriving velocity estimates. Steady flow in the range of 45 to 146 mL/min toward the catheter, was used in wall-less tissue-mimicking phantoms simulating healthy lumen (8-mm diameter), 30% diameter symmetrical stenosis and 37% diameter eccentric stenosis. The system provided colour flow images and good estimation of peak velocity and volumetric flows (within 1% to 9% and 16% to 48%, respectively, of calculated values) at 5 to 7 mm distal to the catheter. A sector forward-viewing IVUS imaging/ Doppler system is suitable for combined anatomical and functional assessment of stenosed vessels. (E-mail: N.McDicken@ed.ac.uk) (C) 2003 World Federation for Ultrasound in Medicine Biology.

Original languageEnglish
Pages (from-to)53-64
Number of pages12
JournalUltrasound in Medicine and Biology (UMB)
Volume29
Issue number1
Publication statusPublished - Jan 2003

Keywords

  • Blood Flow Velocity
  • Blood Volume
  • Humans
  • Phantoms, Imaging
  • Regional Blood Flow
  • Ultrasonography, Doppler, Color
  • Ultrasonography, Interventional

Fingerprint

Dive into the research topics of 'Doppler colour flow imaging and flow quantification with a novel forward-viewing intravascular ultrasound system'. Together they form a unique fingerprint.

Cite this