Transverse oscillation vector flow imaging for transthoracic echocardiography
Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
This work presents the development and first results of in vivo transthoracic cardiac imaging using an implementation of Vector Flow Imaging (VFI) via the Transverse Oscillation (TO) method on a phased-array transducer. Optimal selection of the lateral wavelength of the transversely-oscillating receive field is described, and results from Field II simulations are presented. Measurements are made using the SARUS experimental ultrasound scanner driving an intercostal phased-array probe. The acquisition sequence was composed of interleaved frames of 68-line B-mode and 17-direction, 32-shot vector velocity flow images. A flow pump was programmed for constant flow for in vitro acquisitions at varying depths in a tissue-mimicking fluid. Additionally, mitral, aortic, and tricuspid valves of two healthy volunteers were scanned from intercostal acoustic windows. The acquired RF data were beam-formed via the TO method, and fourth-order estimators were employed for the velocity estimation. The resulting images were compared with those from conventional spectral Doppler and color flow mapping sequences. VFI is shown to be a clinically-feasible tool, which enables new flexibility for choosing acoustic windows, visualizing turbulent flow patterns, and measuring velocities.
Originalsprog | Engelsk |
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Titel | Medical Imaging 2015 : Ultrasonic Imaging and Tomography |
Redaktører | Neb Duric, Johan G. Bosch |
Forlag | SPIE |
Publikationsdato | 2015 |
Artikelnummer | 941902 |
ISBN (Elektronisk) | 9781628415094 |
DOI | |
Status | Udgivet - 2015 |
Begivenhed | Medical Imaging 2015: Ultrasonic Imaging and Tomography - Orlando, USA Varighed: 22 feb. 2015 → 23 feb. 2015 |
Konference
Konference | Medical Imaging 2015: Ultrasonic Imaging and Tomography |
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Land | USA |
By | Orlando |
Periode | 22/02/2015 → 23/02/2015 |
Sponsor | ALIO Industries, Alpinion Medical Systems, Bruker, Modus Medical Devices Inc., The Society of Photo-Optical Instrumentation Engineers (SPIE) |
Navn | Progress in Biomedical Optics and Imaging - Proceedings of SPIE |
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Vol/bind | 9419 |
ISSN | 1605-7422 |
Bibliografisk note
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