First report on intraoperative vector flow imaging of the heart among patients with healthy and diseased aortic valves

Research output: Contribution to journal › Journal article › Research › peer-review

Standard

First report on intraoperative vector flow imaging of the heart among patients with healthy and diseased aortic valves. / Hansen, Kristoffer Lindskov; Møller-Sørensen, Hasse; Pedersen, Mads Møller; Hansen, Peter Møller; Kjaergaard, Jesper; Lund, Jens Teglgaard; Nilsson, Jens Christian; Jensen, Jørgen Arendt; Nielsen, Michael Bachmann.

In: Ultrasonics, Vol. 56, 01.02.2015, p. 243-250.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Hansen, KL, Møller-Sørensen, H, Pedersen, MM, Hansen, PM, Kjaergaard, J, Lund, JT, Nilsson, JC, Jensen, JA & Nielsen, MB 2015, 'First report on intraoperative vector flow imaging of the heart among patients with healthy and diseased aortic valves', Ultrasonics, vol. 56, pp. 243-250. https://doi.org/10.1016/j.ultras.2014.07.015

APA

Hansen, K. L., Møller-Sørensen, H., Pedersen, M. M., Hansen, P. M., Kjaergaard, J., Lund, J. T., Nilsson, J. C., Jensen, J. A., & Nielsen, M. B. (2015). First report on intraoperative vector flow imaging of the heart among patients with healthy and diseased aortic valves. Ultrasonics, 56, 243-250. https://doi.org/10.1016/j.ultras.2014.07.015

Vancouver

Hansen KL, Møller-Sørensen H, Pedersen MM, Hansen PM, Kjaergaard J, Lund JT et al. First report on intraoperative vector flow imaging of the heart among patients with healthy and diseased aortic valves. Ultrasonics. 2015 Feb 1;56:243-250. https://doi.org/10.1016/j.ultras.2014.07.015

Author

Hansen, Kristoffer Lindskov ; Møller-Sørensen, Hasse ; Pedersen, Mads Møller ; Hansen, Peter Møller ; Kjaergaard, Jesper ; Lund, Jens Teglgaard ; Nilsson, Jens Christian ; Jensen, Jørgen Arendt ; Nielsen, Michael Bachmann. / First report on intraoperative vector flow imaging of the heart among patients with healthy and diseased aortic valves. In: Ultrasonics. 2015 ; Vol. 56. pp. 243-250.

Bibtex

@article{2de78c62df4d4ce8a90633cbd8912f1c,
title = "First report on intraoperative vector flow imaging of the heart among patients with healthy and diseased aortic valves",
abstract = "The vector velocity method Transverse Oscillation (TO) implemented on a conventional ultrasound (US) scanner (ProFocus, BK Medical, Herlev, Denmark) can provide real-time, angle-independent estimates of the cardiac blood flow. During cardiac surgery, epicardial US examination using TO was performed on (A) 3 patients with healthy aortic valve and (B) 3 patients with aortic valve stenosis. In group B, the systolic flow of the ascending aorta had higher velocities, was more aliased and chaotic. The jet narrowed to 44% of the lumen compared to 75% in group A and with a vector concentration, a measure of flow complexity, of 0.41 compared to 0.87 in group A. The two groups had similar secondary flow of the ascending aorta with an average rotation frequency of 4.8 Hz. Simultaneous measurements were obtained with spectral Doppler (SD) and a thermodilution technique (TD). The mean difference in peak systolic velocity compared to SD in group A was 22% and 45% in B, while the mean difference in volume flow compared to TD in group A was 30% and 32% in B. TO can potentially reveal new information of cardiac blood flow, and may become a valuable diagnostic tool in the evaluation of patients with cardiovascular diseases.",
keywords = "Aortic valve, Cardiac flow, Stenosis, Transverse oscillation, Vector flow imaging",
author = "Hansen, {Kristoffer Lindskov} and Hasse M{\o}ller-S{\o}rensen and Pedersen, {Mads M{\o}ller} and Hansen, {Peter M{\o}ller} and Jesper Kjaergaard and Lund, {Jens Teglgaard} and Nilsson, {Jens Christian} and Jensen, {J{\o}rgen Arendt} and Nielsen, {Michael Bachmann}",
note = "Publisher Copyright: {\textcopyright} 2014 Elsevier B.V. All rights reserved.",
year = "2015",
month = feb,
day = "1",
doi = "10.1016/j.ultras.2014.07.015",
language = "English",
volume = "56",
pages = "243--250",
journal = "Ultrasonics",
issn = "0041-624X",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - First report on intraoperative vector flow imaging of the heart among patients with healthy and diseased aortic valves

AU - Hansen, Kristoffer Lindskov

AU - Møller-Sørensen, Hasse

AU - Pedersen, Mads Møller

AU - Hansen, Peter Møller

AU - Kjaergaard, Jesper

AU - Lund, Jens Teglgaard

AU - Nilsson, Jens Christian

AU - Jensen, Jørgen Arendt

AU - Nielsen, Michael Bachmann

N1 - Publisher Copyright: © 2014 Elsevier B.V. All rights reserved.

PY - 2015/2/1

Y1 - 2015/2/1

N2 - The vector velocity method Transverse Oscillation (TO) implemented on a conventional ultrasound (US) scanner (ProFocus, BK Medical, Herlev, Denmark) can provide real-time, angle-independent estimates of the cardiac blood flow. During cardiac surgery, epicardial US examination using TO was performed on (A) 3 patients with healthy aortic valve and (B) 3 patients with aortic valve stenosis. In group B, the systolic flow of the ascending aorta had higher velocities, was more aliased and chaotic. The jet narrowed to 44% of the lumen compared to 75% in group A and with a vector concentration, a measure of flow complexity, of 0.41 compared to 0.87 in group A. The two groups had similar secondary flow of the ascending aorta with an average rotation frequency of 4.8 Hz. Simultaneous measurements were obtained with spectral Doppler (SD) and a thermodilution technique (TD). The mean difference in peak systolic velocity compared to SD in group A was 22% and 45% in B, while the mean difference in volume flow compared to TD in group A was 30% and 32% in B. TO can potentially reveal new information of cardiac blood flow, and may become a valuable diagnostic tool in the evaluation of patients with cardiovascular diseases.

AB - The vector velocity method Transverse Oscillation (TO) implemented on a conventional ultrasound (US) scanner (ProFocus, BK Medical, Herlev, Denmark) can provide real-time, angle-independent estimates of the cardiac blood flow. During cardiac surgery, epicardial US examination using TO was performed on (A) 3 patients with healthy aortic valve and (B) 3 patients with aortic valve stenosis. In group B, the systolic flow of the ascending aorta had higher velocities, was more aliased and chaotic. The jet narrowed to 44% of the lumen compared to 75% in group A and with a vector concentration, a measure of flow complexity, of 0.41 compared to 0.87 in group A. The two groups had similar secondary flow of the ascending aorta with an average rotation frequency of 4.8 Hz. Simultaneous measurements were obtained with spectral Doppler (SD) and a thermodilution technique (TD). The mean difference in peak systolic velocity compared to SD in group A was 22% and 45% in B, while the mean difference in volume flow compared to TD in group A was 30% and 32% in B. TO can potentially reveal new information of cardiac blood flow, and may become a valuable diagnostic tool in the evaluation of patients with cardiovascular diseases.

KW - Aortic valve

KW - Cardiac flow

KW - Stenosis

KW - Transverse oscillation

KW - Vector flow imaging

UR - http://www.scopus.com/inward/record.url?scp=84912011669&partnerID=8YFLogxK

U2 - 10.1016/j.ultras.2014.07.015

DO - 10.1016/j.ultras.2014.07.015

M3 - Journal article

C2 - 25128079

AN - SCOPUS:84912011669

VL - 56

SP - 243

EP - 250

JO - Ultrasonics

JF - Ultrasonics

SN - 0041-624X

ER -

ID: 331500783