Research output per year
Research output per year
- 1 - 50 out of 97 results
Search results
-
2021
E-wave asymmetry elucidates diastolic ventricular stiffness-relaxation coupling: Model-based prediction with in vivo validation
Amrute, J. M., Zhang, D., Padovano, W. M. & Kovács, S. J., Jan 2021, In: American Journal of Physiology - Heart and Circulatory Physiology. 320, 1, p. H181-H189Research output: Contribution to journal › Article › peer-review
Open Access1 Scopus citations -
2020
Alternative diastolic function models of ventricular longitudinal filling velocity are mathematically identical
Bhagavan, D., Padovano, W. M. & Kovács, S. J., May 2020, In: American Journal of Physiology - Heart and Circulatory Physiology. 318, 5, p. F1059-F1067Research output: Contribution to journal › Article › peer-review
Open Access2 Scopus citations -
2018
Quantifying Diastolic Function: From E-Waves as Triangles to Physiologic Contours via the ‘Geometric Method’
Golman, M., Padovano, W., Shmuylovich, L. & Kovács, S. J., Mar 1 2018, In: Cardiovascular Engineering and Technology. 9, 1, p. 105-119 15 p.Research output: Contribution to journal › Article › peer-review
4 Scopus citations -
2017
Hydraulic forces contribute to left ventricular diastolic filling
Maksuti, E., Carlsson, M., Arheden, H., Kovács, S. J., Broomé, M. & Ugander, M., Mar 3 2017, In: Scientific reports. 7, 43505.Research output: Contribution to journal › Article › peer-review
Open Access16 Scopus citations -
The quest for load-independent left ventricular chamber properties: exploring the normalized pressure–volume loop
Kohli, K. & Kovács, S. J., Mar 1 2017, In: Physiological Reports. 5, 6, e13160.Research output: Contribution to journal › Article › peer-review
Open Access5 Scopus citations -
2016
Quantitative assessment of atrial conduit function: a new index of diastolic dysfunction
Nappo, R., Degiovanni, A., Bolzani, V., Sartori, C., Di Giovine, G., Cerini, P., Fossaceca, R., Kovács, S. J. & Marino, P. N., Jan 1 2016, In: Clinical Research in Cardiology. 105, 1, p. 17-28 12 p.Research output: Contribution to journal › Article › peer-review
Open Access35 Scopus citations -
Vortex ring behavior provides the epigenetic blueprint for the human heart
Arvidsson, P. M., Kovács, S. J., Töger, J., Borgquist, R., Heiberg, E., Carlsson, M. & Arheden, H., Feb 26 2016, In: Scientific reports. 6, 22021.Research output: Contribution to journal › Article › peer-review
Open Access79 Scopus citations -
Vortex-ring mixing as a measure of diastolic function of the human heart: Phantom validation and initial observations in healthy volunteers and patients with heart failure
Töger, J., Kanski, M., Arvidsson, P. M., Carlsson, M., Kovács, S. J., Borgquist, R., Revstedt, J., Söderlind, G., Arheden, H. & Heiberg, E., Jun 1 2016, In: Journal of Magnetic Resonance Imaging. 43, 6, p. 1386-1397 12 p.Research output: Contribution to journal › Article › peer-review
Open Access17 Scopus citations -
2015
Diastolic function in heart failure
Kovács, S. J., Jan 31 2015, In: Clinical Medicine Insights: Cardiology. 9, p. 49-55 7 p.Research output: Contribution to journal › Article › peer-review
Open Access16 Scopus citations -
The impact of 6 weeks of atrial fibrillation on left atrial and ventricular structure and function
Kazui, T., Henn, M. C., Watanabe, Y., Kovács, S. J., Lawrance, C. P., Greenberg, J. W., Moon, M., Schuessler, R. B. & Damiano, R. J., Dec 2015, In: Journal of Thoracic and Cardiovascular Surgery. 150, 6, p. 1602-1608.e1Research output: Contribution to journal › Article › peer-review
Open Access23 Scopus citations -
2014
Diastolic function alteration mechanisms in physiologic hypertrophy versus pathologic hypertrophy are elucidated by model-based Doppler E-wave analysis
Zhu, S., Morrell, T., Apor, A., Merkely, B., Vágó, H., Tóth, A., Ghosh, E. & Kovács, S. J., Dec 1 2014, In: Journal of Exercise Science and Fitness. 12, 2, p. 88-95 8 p.Research output: Contribution to journal › Article › peer-review
Open Access3 Scopus citations -
Diastolic function in normal sinus rhythm vs. chronic atrial fibrillation: Comparison by fractionation of E-wave deceleration time into stiffness and relaxation components
Mossahebi, S. & Kovács, S. J., 2014, In: Journal of Atrial Fibrillation. 6, 6, p. 13-19 7 p.Research output: Contribution to journal › Article › peer-review
3 Scopus citations -
E-wave generated intraventricular diastolic vortex to L-wave relation: Model-based prediction with in vivo validation
Ghosh, E., Caruthers, S. D. & Kovács, S. J., Aug 1 2014, In: Journal of Applied Physiology. 117, 3, p. 316-324 9 p.Research output: Contribution to journal › Article › peer-review
8 Scopus citations -
Fractionating E-wave deceleration time into its stiffness and relaxation components distinguishes pseudonormal from normal filling
Mossahebi, S., Zhu, S. & Kovács, S. J., 2014, In: Circulation: Cardiovascular Imaging. 8, 1, e002177.Research output: Contribution to journal › Article › peer-review
Open Access10 Scopus citations -
Kinematic Modeling Based Decomposition of Transmitral Flow (Doppler E-Wave) Deceleration Time into Stiffness and Relaxation Components
Mossahebi, S. & Kovács, S. J., Mar 2014, In: Cardiovascular Engineering and Technology. 5, 1, p. 25-34 10 p.Research output: Contribution to journal › Article › peer-review
7 Scopus citations -
Quantification of global diastolic function by kinematic modeling-based analysis of transmitral flow via the parametrized diastolic filling formalism
Mossahebi, S., Zhu, S., Chen, H., Shmuylovich, L., Ghosh, E. & Kovács, S. J., Sep 1 2014, In: Journal of Visualized Experiments. 91, e51471.Research output: Contribution to journal › Article › peer-review
Open Access6 Scopus citations -
The isovolumic relaxation to early rapid filling relation: Kinematic model based prediction with in vivo validation
Mossahebi, S. & Kovács, S. J., Mar 2014, In: Physiological Reports. 2, 3, e00258.Research output: Contribution to journal › Article › peer-review
Open Access2 Scopus citations -
2013
Diastolic function in Olympic athletes versus controls: Stiffness-based and relaxation-based echocardiographic comparisons
Apor, A., Merkely, B., Morrell, T., Zhu, S., Ghosh, E., Vágó, H., Andrássy, P. & Kovács, S. J., Jun 2013, In: Journal of Exercise Science and Fitness. 11, 1, p. 29-34 6 p.Research output: Contribution to journal › Article › peer-review
Open Access7 Scopus citations -
Early left ventricular diastolic function quantitation using directional impedances
Ghosh, E. & Kovács, S. J., Jun 2013, In: Annals of biomedical engineering. 41, 6, p. 1269-1278 10 p.Research output: Contribution to journal › Article › peer-review
4 Scopus citations -
Low-Sodium DASH diet improves diastolic function and ventricular arterial coupling in hypertensive heart failure with preserved ejection fraction
Hummel, S. L., Seymour, E. M., Brook, R. D., Sheth, S. S., Ghosh, E., Zhu, S., Weder, A. B., Kovacs, S. J. & Kolias, T. J., Nov 2013, In: Circulation: Heart Failure. 6, 6, p. 1165-1171 7 p.Research output: Contribution to journal › Article › peer-review
Open Access154 Scopus citations -
The challenge of chamber stiffness determination in chronic atrial fibrillation VS. Normal sinus rhythm: Echocardiographic prediction with simultaneous hemodynamic validation
Mossahebi, S., Shmuylovich, L. & Kovács, S. J., Oct 2013, In: Journal of Atrial Fibrillation. 6, 3, p. 45-50 6 p.Research output: Contribution to journal › Article › peer-review
2 Scopus citations -
The vortex formation time to diastolic function relation: Assessment of pseudonormalized versus normal filling
Ghosh, E. & Kovács, S. J., Nov 2013, In: Physiological Reports. 1, 6, p. 1-12 12 p., e00170.Research output: Contribution to journal › Article › peer-review
Open Access13 Scopus citations -
2012
Diastolic vortex ring formation in the human left ventricle: quantitative analysis using Lagrangian coherent structures and 4D cardiovascular magnetic resonance velocity mapping
Toger, J., Kanski, M., Carlsson, M., Kovács, S. J., Söderlind, G., Arheden, H. & Heiberg, E., Feb 1 2012, In: Journal of Cardiovascular Magnetic Resonance. 14, W30.Research output: Contribution to journal › Article › peer-review
Open Access3 Scopus citations -
Kinematic modeling-based left ventricular diastatic (passive) chamber stiffness determination with in-vivo validation
Mossahebi, S. & Kovács, S. J., May 2012, In: Annals of biomedical engineering. 40, 5, p. 987-995 9 p.Research output: Contribution to journal › Article › peer-review
13 Scopus citations -
Spatio-temporal attributes of left ventricular pressure decay rate during isovolumic relaxation
Ghosh, E. & Kovács, S. J., Mar 2012, In: American Journal of Physiology - Heart and Circulatory Physiology. 302, 5, p. H1094-H1101Research output: Contribution to journal › Article › peer-review
4 Scopus citations -
Vortex ring formation in the left ventricle of the heart: analysis by 4D flow MRI and Lagrangian coherent structures.
Töger, J., Kanski, M., Carlsson, M., Kovács, S. J., Söderlind, G., Arheden, H. & Heiberg, E., Dec 2012, In: Annals of biomedical engineering. 40, 12, p. 2652-2662 11 p.Research output: Contribution to journal › Article › peer-review
Open Access125 Scopus citations -
2011
The Diastolic Function to Cyclic Variation of Myocardial Ultrasonic Backscatter Relation: The Influence of Parametrized Diastolic Filling (PDF) Formalism Determined Chamber Properties
Lloyd, C. W., Shmuylovich, L., Holland, M. R., Miller, J. G. & Kovács, S. J., Aug 2011, In: Ultrasound in Medicine and Biology. 37, 8, p. 1185-1195 11 p.Research output: Contribution to journal › Article › peer-review
2 Scopus citations -
The thermodynamics of diastole: Kinematic modeling-based derivation of the P-V loop to transmitral flow energy relation with in vivo validation
Mossahebi, S., Shmuylovich, L. & Kovács, S. J., Feb 2011, In: American Journal of Physiology - Heart and Circulatory Physiology. 300, 2, p. H514-H521Research output: Contribution to journal › Article › peer-review
15 Scopus citations -
2010
Point: Counterpoint: Left ventricular volume during diastasis is/is not the physiological in vivo equilibrium volume and is/is not related to diastolic suction
Shmuylovich, L., Chung, C. S. & Kovács, S. J., Aug 2010, In: Journal of Applied Physiology. 109, 2, p. 606-608 3 p.Research output: Contribution to journal › Article › peer-review
Open Access22 Scopus citations -
The E-Wave Delayed Relaxation Pattern to LV Pressure Contour Relation: Model-Based Prediction With in vivo Validation
Zhang, W., Shmuylovich, L. & Kovács, S. J., Mar 2010, In: Ultrasound in Medicine and Biology. 36, 3, p. 497-511 15 p.Research output: Contribution to journal › Article › peer-review
14 Scopus citations -
Vortex formation time-to-left ventricular early rapid filling relation: Model-based prediction with echocardiographic validation
Ghosh, E., Shmuylovich, L. & Kovács, S. J., Dec 2010, In: Journal of Applied Physiology. 109, 6, p. 1812-1819 8 p.Research output: Contribution to journal › Article › peer-review
22 Scopus citations -
2009
The Age Dependence of Left Ventricular Filling Efficiency
Zhang, W. & Kovács, S. J., Jul 2009, In: Ultrasound in Medicine and Biology. 35, 7, p. 1076-1085 10 p.Research output: Contribution to journal › Article › peer-review
10 Scopus citations -
2008
Elucidation of spatially distinct compensatory mechanisms in diastole: Radial compensation for impaired longitudinal filling in left ventricular hypertrophy
Riordan, M. M. & Kovács, S. J., Feb 2008, In: Journal of Applied Physiology. 104, 2, p. 513-520 8 p.Research output: Contribution to journal › Article › peer-review
11 Scopus citations -
Imaging the motion of the heart with echocardiography: Advanced technology provides deeper insights into physiology and diastolic function
Kovács, S. J., Shmuylovich, L. & Zhang, W., Dec 1 2008, In: MedicaMundi. 52, 2, p. 31-36+71+79+81+83Research output: Contribution to journal › Article › peer-review
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Physical determinants of left ventricular isovolumic pressure decline: Model prediction with in vivo validation
Chung, C. S. & Kovács, S. J., Apr 2008, In: American Journal of Physiology - Heart and Circulatory Physiology. 294, 4, p. H1589-H1596Research output: Contribution to journal › Article › peer-review
32 Scopus citations -
Stiffness and relaxation components of the exponential and logistic time constants may be used to derive a load-independent index of isovolumic pressure decay
Shmuylovich, L. & Kovács, S. J., Dec 2008, In: American Journal of Physiology - Heart and Circulatory Physiology. 295, 6, p. H2551-H2559Research output: Contribution to journal › Article › peer-review
13 Scopus citations -
The diastatic pressure-volume relationship is not the same as the end-diastolic pressure-volume relationship
Zhang, W. & Kovács, S. J., Jun 2008, In: American Journal of Physiology - Heart and Circulatory Physiology. 294, 6, p. H2750-H2760Research output: Contribution to journal › Article › peer-review
30 Scopus citations -
The effects of caloric restriction- and exercise-induced weight loss on left ventricular diastolic function
Riordan, M. M., Weiss, E. P., Meyer, T. E., Ehsani, A. A., Racette, S. B., Villareal, D. T., Fontana, L., Holloszy, J. O. & Kovács, S. J., Mar 2008, In: American Journal of Physiology - Heart and Circulatory Physiology. 294, 3, p. H1174-H1182Research output: Contribution to journal › Article › peer-review
57 Scopus citations -
Transmitral Flow Velocity-Contour Variation After Premature Ventricular Contractions: A Novel Test of the Load-Independent Index of Diastolic Filling
Boskovski, M. T., Shmuylovich, L. & Kovács, S. J., Dec 2008, In: Ultrasound in Medicine and Biology. 34, 12, p. 1901-1908 8 p.Research output: Contribution to journal › Article › peer-review
7 Scopus citations -
2007
Absence of diastolic mitral annular oscillations is a marker for relaxation-related diastolic dysfunction
Riordan, M. M. & Kovács, S. J., Jun 2007, In: American Journal of Physiology - Heart and Circulatory Physiology. 292, 6, p. H2952-H2958Research output: Contribution to journal › Article › peer-review
16 Scopus citations -
Contraction-relaxation coupling mechanism characterization in the thermodynamic phase plane: Normal vs. impaired left ventricular ejection fraction
Wu, Y., Yu, Y. & Kovács, S. J., Apr 2007, In: Journal of Applied Physiology. 102, 4, p. 1367-1373 7 p.Research output: Contribution to journal › Article › peer-review
5 Scopus citations -
E-wave deceleration time may not provide an accurate determination of LV chamber stiffness if LV relaxation/viscoelasticity is unknown
Shmuylovich, L. & Kovács, S. J., Jun 2007, In: American Journal of Physiology - Heart and Circulatory Physiology. 292, 6, p. H2712-H2720Research output: Contribution to journal › Article › peer-review
33 Scopus citations -
Pressure phase-plane based determination of the onset of left ventricular relaxation
Chung, C. S. & Kovács, S. J., Dec 2007, In: Cardiovascular Engineering. 7, 4, p. 162-171 10 p.Research output: Contribution to journal › Article › peer-review
7 Scopus citations -
Stiffness- and relaxation-based quantitation of radial left ventricular oscillations: Elucidation of regional diastolic function mechanisms
Riordan, M. M. & Kovács, S. J., May 2007, In: Journal of Applied Physiology. 102, 5, p. 1862-1870 9 p.Research output: Contribution to journal › Article › peer-review
Open Access8 Scopus citations -
The Kinematic Filling Efficiency Index of the Left Ventricle: Contrasting Normal vs. Diabetic Physiology
Zhang, W., Chung, C. S., Riordan, M. M., Wu, Y., Shmuylovich, L. & Kovács, S. J., Jun 2007, In: Ultrasound in Medicine and Biology. 33, 6, p. 842-850 9 p.Research output: Contribution to journal › Article › peer-review
Open Access11 Scopus citations -
2006
Consequences of increasing heart rate on deceleration time, the velocity-time integral, and E/A
Chung, C. S. & Kovács, S. J., Jan 1 2006, In: American Journal of Cardiology. 97, 1, p. 130-136 7 p.Research output: Contribution to journal › Article › peer-review
39 Scopus citations -
Derivation and left ventricular pressure phase plane based validation of a time dependent isometric crossbridge attachment model
Zhang, W., Chung, C. S. & Kovács, S. J., Dec 2006, In: Cardiovascular Engineering. 6, 4, p. 132-144 13 p.Research output: Contribution to journal › Article › peer-review
4 Scopus citations -
Diastolic ventricular-vascular stiffness and relaxation relation: Elucidation of coupling via pressure phase plane-derived indexes
Chung, C. S., Strunc, A., Oliver, R. & Kovács, S. J., 2006, In: American Journal of Physiology - Heart and Circulatory Physiology. 291, 5, p. H2415-H2423Research output: Contribution to journal › Article › peer-review
19 Scopus citations -
Frequency-based analysis of the early rapid filling pressure-flow relation elucidates diastolic efficiency mechanisms
Wu, Y. & Kovács, S. J., 2006, In: American Journal of Physiology - Heart and Circulatory Physiology. 291, 6, p. H2942-H2949Research output: Contribution to journal › Article › peer-review
14 Scopus citations -
Isovolumic pressure-to-early rapid filling decay rate relation: Model-based derivation and validation via simultaneous catheterization echocardiography
Chung, C. S., Ajo, D. M. & Kovács, S. J., Feb 2006, In: Journal of Applied Physiology. 100, 2, p. 528-534 7 p.Research output: Contribution to journal › Article › peer-review
28 Scopus citations