Imperial College London
Portrait Picture

Professor Chris Dunsby

Faculty of Natural Sciences, Department of Physics

Professor of Biomedical Optics
 
 
 
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Contact

 

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

 
 
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Location

 

622Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Harput:2020:10.1109/TUFFC.2019.2943646,
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},
doi = {10.1109/TUFFC.2019.2943646},
journal = {IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control},
pages = {269--277},
title = {3-D super-resolution ultrasound imaging with a 2-D sparse array},
url = {http://dx.doi.org/10.1109/TUFFC.2019.2943646},
volume = {67},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - High-frame-rate 3-D ultrasound imaging technology combined with super-resolution processing method can visualize 3-D microvascular structures by overcoming the diffraction-limited resolution in every spatial direction. However, 3-D super-resolution ultrasound imaging using a full 2-D array requires a system with a large number of independent channels, the design of 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 fabricated with 512 elements chosen from a density-tapered 2-D spiral layout. High-frame-rate volumetric imaging was performed using two synchronized ULA-OP 256 research scanners. Volumetric images were constructed by coherently compounding nine-angle plane waves acquired at a pulse repetition frequency of 4500 Hz. Localization-based 3-D super-resolution images of two touching subwavelength tubes were generated from 6000 volumes acquired in 12 s. Finally, this work demonstrates the feasibility of 3-D super-resolution imaging and super-resolved velocity 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
DO  - 10.1109/TUFFC.2019.2943646
EP  - 277
PY  - 2020///
SN  - 0885-3010
SP  - 269
TI  - 3-D super-resolution ultrasound imaging with a 2-D sparse array
T2  - IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
UR  - http://dx.doi.org/10.1109/TUFFC.2019.2943646
UR  - http://hdl.handle.net/10044/1/73664
VL  - 67
ER  -
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