title: Assessment of colour Doppler tissue imaging using test-phantoms.
abstract: An investigation has been carried out on the velocity resolution, spatial resolution and accuracy of Doppler images as part of a study into the Doppler display of cardiac tissue motion. Test-phantoms were designed to perform this work and images were captured on a computer. The characteristics of the phantom images and of the image capture process were studied. The smallest spatial detail that was observed in the Doppler image was 3 mm by 3 mm. Doppler receive gain and Doppler ensemble size both affected velocity resolution. Different target materials gave different measures for velocity resolution. This could be related to the different back-scatter intensities of the materials.
authors.affiliation: Department of Medical Physics, Royal Infirmary of Edinburgh, Scotland, UK.
authors.forename: A D
authors.initials: AD
authors.lastname: Fleming
authors.forename: W N
authors.initials: WN
authors.lastname: McDicken
authors.forename: G R
authors.initials: GR
authors.lastname: Sutherland
authors.forename: P R
authors.initials: PR
authors.lastname: Hoskins
mesh_terms: D003198:Computer Simulation; D018618:Echocardiography, Doppler, Color; D018615:Ultrasonography, Doppler, Color