Ultrafast imaging of the heart using circular wave synthetic imaging with phased arrays

The concept of synthetic imaging using circular wave is proposed to image with a very large field of view and at a very high frame rate (>1000 images/sec) heart motions with a conventional cardiac phased array probe. The goal of this study is to demonstrate in vivo the feasibility of this techniq...

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Bibliographic Details
Published in2009 IEEE International Ultrasonics Symposium pp. 515 - 518
Main Authors Couade, M., Pernot, M., Tanter, M., Messas, E., Bel, A., Ba, M., Hagege, A.-A., Fink, M.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.09.2009
Subjects
Acoustic beams
Focusing
heart
Heart valves
Image quality
Image resolution
In vitro
In vivo
Phased arrays
Probes
synthetic imaging
TDI
Ultrafast imaging
Ultrasonic imaging
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Summary:The concept of synthetic imaging using circular wave is proposed to image with a very large field of view and at a very high frame rate (>1000 images/sec) heart motions with a conventional cardiac phased array probe. The goal of this study is to demonstrate in vivo the feasibility of this technique. Experiments are first performed in-vitro on ultrasound phantoms to optimize the trade-off between image quality and frame rate. An in vivo study is then performed on 10 sheep with a conventional phased array probe placed directly on the epicardium at different locations to obtain cine-loop of a complete heart cycle in the conventional imaging planes (long and short axis). After classical post processing of acquired cine-loop (wall tracking and tissue Doppler velocity estimation), the propagation of mechanical waves induced naturally during the heart cycle such as aortic and mitral valves closure can be observed.
ISBN:142444389X
9781424443895
ISSN:1051-0117
DOI:10.1109/ULTSYM.2009.5441640