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Abstract
Shear wave speed measurements can potentially be used to noninvasively measure myocardial stiffness to assess the myocardial function. Several studies showed the feasibility of tracking naturalmechanical waves induced by aortic valve closure in the interventricular septum, but different echocardiographic views have been used. This article systematically studied the wave propagation speedsmeasured in a parasternal long-axis and in an apical four-chamber view in ten healthy volunteers. The apical and parasternal views are predominantly sensitive to longitudinal or transversal tissue motion, respectively, and could, therefore, theoreticallymeasure the speed of different wave modes. We found higher propagation speeds in apical than in the parasternal view (median of 5.1 m/s versus 3.8 m/s, p < 0.01, n = 9). The results in the different views were not correlated (r = 0.26, p = 0.49) and an unexpectedly large variability among healthy volunteers was found in apical view compared with the parasternal view (3.5-8.7 versus 3.2-4.3 m/s, respectively). Complementary finite element simulations of Lamb waves in an elastic plate showed that different propagation speeds can be measured for different particlemotion componentswhen differentwavemodes are induced simultaneously. The in vivo results cannot be fully explained with the theory of Lamb wave modes. Nonetheless, the results suggest that the parasternal long-axis view is amore suitable candidate for clinical diagnosis due to the lower variability in wave speeds.
Keywords
Acoustics and Ultrasonics, Instrumentation, Electrical and Electronic Engineering, Aortic valve closure (AVC), lamb waves, myocardial stiffness, shear wave (SW) elastography, ultrasonic imaging, MYOCARDIAL STIFFNESS, EUROPEAN ASSOCIATION, AMERICAN SOCIETY, SHEAR, ELASTOGRAPHY, ECHOCARDIOGRAPHY, PROPAGATION, RECOMMENDATIONS, UPDATE, FORCE

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MLA
Keijzer, Lana B. H., et al. “Parasternal versus Apical View in Cardiac Natural Mechanical Wave Speed Measurements.” IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, vol. 67, no. 8, 2020, pp. 1590–602, doi:10.1109/tuffc.2020.2978299.
APA
Keijzer, L. B. H., Strachinaru, M., Bowen, D. J., Caenen, A., Van der Steen, A. F. W., Verweij, M. D., … Vos, H. J. (2020). Parasternal versus apical view in cardiac natural mechanical wave speed measurements. IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 67(8), 1590–1602. https://doi.org/10.1109/tuffc.2020.2978299
Chicago author-date
Keijzer, Lana B.H., Mihai Strachinaru, Dan J. Bowen, Annette Caenen, Antonius F.W. Van der Steen, Martin D. Verweij, Nico De Jong, Johan G. Bosch, and Hendrik J. Vos. 2020. “Parasternal versus Apical View in Cardiac Natural Mechanical Wave Speed Measurements.” IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL 67 (8): 1590–1602. https://doi.org/10.1109/tuffc.2020.2978299.
Chicago author-date (all authors)
Keijzer, Lana B.H., Mihai Strachinaru, Dan J. Bowen, Annette Caenen, Antonius F.W. Van der Steen, Martin D. Verweij, Nico De Jong, Johan G. Bosch, and Hendrik J. Vos. 2020. “Parasternal versus Apical View in Cardiac Natural Mechanical Wave Speed Measurements.” IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL 67 (8): 1590–1602. doi:10.1109/tuffc.2020.2978299.
Vancouver
1.
Keijzer LBH, Strachinaru M, Bowen DJ, Caenen A, Van der Steen AFW, Verweij MD, et al. Parasternal versus apical view in cardiac natural mechanical wave speed measurements. IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL. 2020;67(8):1590–602.
IEEE
[1]
L. B. H. Keijzer et al., “Parasternal versus apical view in cardiac natural mechanical wave speed measurements,” IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, vol. 67, no. 8, pp. 1590–1602, 2020.
@article{8666844,
  abstract     = {Shear wave speed measurements can potentially be used to noninvasively measure myocardial stiffness to assess the myocardial function. Several studies showed the feasibility of tracking naturalmechanical waves induced by aortic valve closure in the interventricular septum, but different echocardiographic views have been used. This article systematically studied the wave propagation speedsmeasured in a parasternal long-axis and in an apical four-chamber view in ten healthy volunteers. The apical and parasternal views are predominantly sensitive to longitudinal or transversal tissue motion, respectively, and could, therefore, theoreticallymeasure the speed of different wave modes. We found higher propagation speeds in apical than in the parasternal view (median of 5.1 m/s versus 3.8 m/s, p < 0.01, n = 9). The results in the different views were not correlated (r = 0.26, p = 0.49) and an unexpectedly large variability among healthy volunteers was found in apical view compared with the parasternal view (3.5-8.7 versus 3.2-4.3 m/s, respectively). Complementary finite element simulations of Lamb waves in an elastic plate showed that different propagation speeds can be measured for different particlemotion componentswhen differentwavemodes are induced simultaneously. The in vivo results cannot be fully explained with the theory of Lamb wave modes. Nonetheless, the results suggest that the parasternal long-axis view is amore suitable candidate for clinical diagnosis due to the lower variability in wave speeds.},
  author       = {Keijzer, Lana B.H. and Strachinaru, Mihai and Bowen, Dan J. and Caenen, Annette and Van der Steen, Antonius F.W. and Verweij, Martin D. and De Jong, Nico and Bosch, Johan G. and Vos, Hendrik J.},
  issn         = {0885-3010},
  journal      = {IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL},
  keywords     = {Acoustics and Ultrasonics,Instrumentation,Electrical and Electronic Engineering,Aortic valve closure (AVC),lamb waves,myocardial stiffness,shear wave (SW) elastography,ultrasonic imaging,MYOCARDIAL STIFFNESS,EUROPEAN ASSOCIATION,AMERICAN SOCIETY,SHEAR,ELASTOGRAPHY,ECHOCARDIOGRAPHY,PROPAGATION,RECOMMENDATIONS,UPDATE,FORCE},
  language     = {eng},
  number       = {8},
  pages        = {1590--1602},
  title        = {Parasternal versus apical view in cardiac natural mechanical wave speed measurements},
  url          = {http://dx.doi.org/10.1109/tuffc.2020.2978299},
  volume       = {67},
  year         = {2020},
}

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