Spatio-temporal consistency of transthoracic ARFI-derived metrics of myocardial function


Conference Paper

© 2017 IEEE. Cardiac function has traditionally been studied using pressure-volume (PV) loop analysis. PV loops can be used to derive functional indices such as end-systolic pressure volume relationship (ESPVR) - a measure of myocardial contractility, end-diastolic pressure volume relationship (EDPVR) - a measure of myocardial compliance and relaxation time constant (τ) - a measure of left ventricular relaxation. However, PV loop analysis is largely an invasive proedure; it requires catherization and only provides a global assessment of cardiac function. Transthoracic ARFI (TTE ARFI) has been shown to capture the dynamic trends of myocardial stiffness over the cardiac cycle in a noninvasive manner. In this work we explore the potential of using myocardial stiffness measurements made using TTE ARFI to derive functional indices similar to the ones measured using PV loops. We studied parameters impacting the spatio-temporal stability and reliability of TTE ARFI-derived measures of myocardial function.

Full Text

Duke Authors

Cited Authors

  • Kakkad, V; Hollender, P; Kisslo, J; Trahey, G

Published Date

  • October 31, 2017

Published In

Electronic International Standard Serial Number (EISSN)

  • 1948-5727

International Standard Serial Number (ISSN)

  • 1948-5719

International Standard Book Number 13 (ISBN-13)

  • 9781538633830

Digital Object Identifier (DOI)

  • 10.1109/ULTSYM.2017.8092836

Citation Source

  • Scopus