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Ultrasound Visualization and Recording of Transient Myocardial Vibrations.

Publication ,  Journal Article
Moore, C; McCrary, AW; LeFevre, M; Sturgeon, GM; Barker, PAC; von Ramm, OT
Published in: Ultrasound Med Biol
June 2023

OBJECTIVE: A new visualization and recording method used to assess and quantitate autogenic high-velocity motions in myocardial walls to provide a new description of cardiac function is described. METHODS: The regional motion display (RMD) is based on high-speed difference ultrasound B-mode images and spatiotemporal processing to record propagating events (PEs). Sixteen normal participants and one patient with cardiac amyloidosis were imaged at rates of 500-1000/s using the Duke Phased Array Scanner, T5. RMDs were generated using difference images and spatially integrating these to display velocity as function of time along a cardiac wall. RESULTS: In normal participants, RMDs revealed four discrete PEs with average onset timing with respect to the QRS complex of -31.7, +46, +365 and +536 ms. The late diastolic PE propagated apex to base in all participants at an average velocity of 3.4 m/s by the RMD. The RMD of the amyloidosis patient revealed significant changes in the appearance of PEs compared with normal participants. The late diastolic PE propagated at 5.3 m/s from apex to base. All four PEs lagged the average timing of normal participants. CONCLUSION: The RMD method reliably reveals PEs as discrete events and successfully allows reproducible measurement of PE timing and the velocity of at least one PE. The RMD method is applicable to live, clinical high-speed studies and may offer a new approach to characterization of cardiac function.

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Published In

Ultrasound Med Biol

DOI

EISSN

1879-291X

Publication Date

June 2023

Volume

49

Issue

6

Start / End Page

1431 / 1440

Location

England

Related Subject Headings

  • Vibration
  • Ventricular Function, Left
  • Ultrasonography
  • Myocardial Contraction
  • Humans
  • Heart
  • Echocardiography
  • Amyloidosis
  • Acoustics
  • 1103 Clinical Sciences
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Moore, C., McCrary, A. W., LeFevre, M., Sturgeon, G. M., Barker, P. A. C., & von Ramm, O. T. (2023). Ultrasound Visualization and Recording of Transient Myocardial Vibrations. Ultrasound Med Biol, 49(6), 1431–1440. https://doi.org/10.1016/j.ultrasmedbio.2023.02.006
Moore, Cooper, Andrew W. McCrary, Melissa LeFevre, Gregory M. Sturgeon, Piers A. C. Barker, and Olaf T. von Ramm. “Ultrasound Visualization and Recording of Transient Myocardial Vibrations.Ultrasound Med Biol 49, no. 6 (June 2023): 1431–40. https://doi.org/10.1016/j.ultrasmedbio.2023.02.006.
Moore C, McCrary AW, LeFevre M, Sturgeon GM, Barker PAC, von Ramm OT. Ultrasound Visualization and Recording of Transient Myocardial Vibrations. Ultrasound Med Biol. 2023 Jun;49(6):1431–40.
Moore, Cooper, et al. “Ultrasound Visualization and Recording of Transient Myocardial Vibrations.Ultrasound Med Biol, vol. 49, no. 6, June 2023, pp. 1431–40. Pubmed, doi:10.1016/j.ultrasmedbio.2023.02.006.
Moore C, McCrary AW, LeFevre M, Sturgeon GM, Barker PAC, von Ramm OT. Ultrasound Visualization and Recording of Transient Myocardial Vibrations. Ultrasound Med Biol. 2023 Jun;49(6):1431–1440.
Journal cover image

Published In

Ultrasound Med Biol

DOI

EISSN

1879-291X

Publication Date

June 2023

Volume

49

Issue

6

Start / End Page

1431 / 1440

Location

England

Related Subject Headings

  • Vibration
  • Ventricular Function, Left
  • Ultrasonography
  • Myocardial Contraction
  • Humans
  • Heart
  • Echocardiography
  • Amyloidosis
  • Acoustics
  • 1103 Clinical Sciences