Research output per year
Research output per year
- 1 - 50 out of 145 results
Search results
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2022
Systolic–diastolic coupling
Arvidsson, P. M. & Kovács, S. J., Jan 1 2022, Textbook of Arterial Stiffness and Pulsatile Hemodynamics in Health and Disease. Elsevier, p. 227-240 14 p.Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review
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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
Functional Contribution of Circumferential Versus Longitudinal Strain: Different Concepts Suggest Conflicting Results
Carlsson, M., Heiberg, E., Ostenfeld, E., Steding-Ehrenborg, K., Kovács, S. J., Flachskampf, F. & Arheden, H., Jan 16 2018, In: Journal of the American College of Cardiology. 71, 2, p. 254-255 2 p.Research output: Contribution to journal › Letter › peer-review
Open Access8 Scopus citations -
Kinematic Modeling of Left Ventricular Diastolic Function
Shmuylovich, L., Chung, C. S. & Kovács, S. J., Jan 1 2018, Molecular, Cellular, and Tissue Engineering. CRC Press, p. 28-1-28-25Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review
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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 -
Regulation of cardiac output
Kovács, S. J., Jan 1 2018, Cardiac Intensive Care. Elsevier, p. 52-59.e1Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review
1 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 Access15 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 Access32 Scopus citations -
The shape of the healthy heart is optimized for vortex ring formation
Arvidsson, P. M., Kovács, S. J., Töger, J., Borgquist, R., Heiberg, E., Carlsson, M. & Arheden, H., 2016, In: Journal of Cardiovascular Magnetic Resonance. 18, p. 1-2 2 p., O23.Research output: Contribution to journal › Comment/debate
Open Access4 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 Access74 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 Access15 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 -
Early detection of abnormal left ventricular relaxation in acute myocardial ischemia with a quadratic model. Med Eng Phys 2014;36(September (9)):1101-5 by Morimont et al.
Chung, C. S., Shmuylovich, L. & Kovács, S. J., Aug 1 2015, In: Medical Engineering and Physics. 37, 8, p. 826 1 p.Research output: Contribution to journal › Letter › peer-review
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Letter to the editor: Atrioventricular plane displacement is not the sole mechanism of atrial and ventricular refill
Arvidsson, P. M., Carlsson, M., Kovács, S. J. & Arheden, H., Sep 18 2015, In: American Journal of Physiology - Heart and Circulatory Physiology. 309, 6, p. H1094-H1096Research output: Contribution to journal › Letter › peer-review
4 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 Access22 Scopus citations -
What global diastolic function is, what it is not, and how to measure it
Chung, C. S., Shmuylovich, L. & Kovács, S. J., 2015, In: American Journal of Physiology - Heart and Circulatory Physiology. 309, 9, p. H1392-H1406Research output: Contribution to journal › Review article › peer-review
24 Scopus citations -
2014
Cardiology: Hemodynamics
Kovács, S. J., Jan 1 2014, The Physiological Measurement Handbook. CRC Press, p. 75-100 26 p.Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review
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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
6 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 Access5 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 Access142 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 -
Quantitative assessment of left ventricular diastolic function via Longitudinal and Transverse flow impedances
Ghosh, E. & Kovacs, S. J., 2012, 2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2012. p. 5595-5598 4 p. 6347262. (Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
1 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 Access119 Scopus citations -
2011
How the (pediatric) heart works when it contracts: Application of left ventricular "isovolumic acceleration" as a load-independent index of contractility
Kovács, S. J., Mar 1 2011, In: Journal of the American College of Cardiology. 57, 9, p. 1108-1110 3 p.Research output: Contribution to journal › Editorial
Open Access1 Scopus citations -
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
Last word on point: Counterpoint: Left ventricular volume during diastasis is the physiological in vivo equilibrium volume and is related to diastolic suction
Shmuylovich, L., Chung, C. S. & Kovács, S. J., Aug 2010, In: Journal of Applied Physiology. 109, 2, p. 615 1 p.Research output: Contribution to journal › Letter › peer-review
9 Scopus citations -
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 Access21 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
Automated method for calculation of a load-independent index of isovolumic pressure decay from left ventricular pressure data
Shmuylovich, L. & Kovács, S. J., 2009, Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009. IEEE Computer Society, p. 3031-3034 4 p. 5333753. (Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
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Determination of early diastolic LV vortex formation time (T*) via the PDF formalism: A kinematic model of filling
Ghosh, E., Shmuylovich, L. & Kovács, S. J., 2009, Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009. IEEE Computer Society, p. 2883-2886 4 p. 5333111. (Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
6 Scopus citations -
Solution of the 'inverse problem of diastole' via kinematic modeling allows determination of ventricular properties and provides mechanistic insights into diastolic heart failure
Kovács, S. J., 2009, Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009. IEEE Computer Society, p. 2354-2357 4 p. 5335021. (Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
4 Scopus citations -
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 -
The pressure recovery ratio: The invasive index of LV relaxation during filling. Model-based prediction with in-Vivo validation
Zhang, W., Shmuylovich, L. & Kovács, S. J., 2009, Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009. IEEE Computer Society, p. 3940-3943 4 p. 5333092. (Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
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The role of left atrial function in diastolic heart failure
Appleton, C. P. & Kovács, S. J., Jan 2009, In: Circulation: Cardiovascular Imaging. 2, 1, p. 6-9 4 p.Research output: Contribution to journal › Editorial
51 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