Imperial College London

Dr Chris Dunsby

Faculty of Natural SciencesDepartment of Physics

Reader in Biomedical Optics



+44 (0)20 7594 7755christopher.dunsby Website




622Blackett LaboratorySouth Kensington Campus






BibTex format

author = {Harput, S and Christensen-Jeffries, K and Ramalli, A and Brown, J and Zhu, J and Zhang, G and Leow, C and Toulemond, M and Boni, E and Tortoli, P and Eckersley, R and Dunsby, C and Tang, M-X},
journal = {IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control},
title = {3-D super-resolution ultrasound imaging with a 2-D sparse array},
url = {},

RIS format (EndNote, RefMan)

AB - High frame rate 3-D ultrasound imaging technologycombined with super-resolution processing method can visualize3-D microvascular structures by overcoming the diffractionlimited resolution in every spatial direction. However, 3-D superresolution ultrasound imaging using a full 2-D array requires asystem with large number of independent channels, the designof which might be impractical due to the high cost, complexity,and volume of data produced.In this study, a 2-D sparse array was designed and fabricatedwith 512 elements chosen from a density-tapered 2-D spirallayout. High frame rate volumetric imaging was performed usingtwo synchronized ULA-OP 256 research scanners. Volumetricimages were constructed by coherently compounding 9-angleplane waves acquired at a pulse repetition frequency of 4500Hz. Localization-based 3-D super-resolution images of two touching sub-wavelength tubes were generated from 6000 volumesacquired in 12 seconds. In conclusion, this work demonstratesthe feasibility of 3-D super-resolution imaging and super-resolvedvelocity mapping using a customized 2-D sparse array transducer
AU - Harput,S
AU - Christensen-Jeffries,K
AU - Ramalli,A
AU - Brown,J
AU - Zhu,J
AU - Zhang,G
AU - Leow,C
AU - Toulemond,M
AU - Boni,E
AU - Tortoli,P
AU - Eckersley,R
AU - Dunsby,C
AU - Tang,M-X
SN - 0885-3010
TI - 3-D super-resolution ultrasound imaging with a 2-D sparse array
T2 - IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
UR -
ER -