Flow dynamics of stenotic aortic valves assessed by signal processing of doppler spectrograms

American Journal of Cardiology

Volumn 85, Issue 5, 2000, Pages 611-617

  Bermejo, Javier ^a,b   Antoranz, J Carlos ^a,b   Garcìa Fernández, Miguel A ^a,b   Moreno, M Mar ^a,b   Delcán, Juan Luis ^a,b  

^a UNIVERSIDAD COMPLUTENSE DE MADRID   (Spain)

^b UNIVERSIDAD NACIONAL DE EDUCACIÓN A DISTANCIA   (Spain)

Author keywords

[No Author keywords available]

Indexed keywords

CARDIOTONIC AGENT; DIAGNOSTIC AGENT; DOBUTAMINE;

AGED; ALGORITHM; AORTA VALVE STENOSIS; ARTICLE; CASE CONTROL STUDY; DOPPLER ECHOCARDIOGRAPHY; ECHOGRAPHY; FEMALE; HEMODYNAMICS; HUMAN; MALE; PATHOPHYSIOLOGY; PHYSIOLOGY; SIGNAL PROCESSING;

AGED; ALGORITHMS; AORTIC VALVE STENOSIS; CARDIOTONIC AGENTS; CASE-CONTROL STUDIES; DOBUTAMINE; ECHOCARDIOGRAPHY, DOPPLER; FEMALE; HEMODYNAMIC PROCESSES; HUMANS; MALE; SIGNAL PROCESSING, COMPUTER-ASSISTED;

EID: 0034151234     PISSN: 00029149     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0002-9149(99)00820-6     Document Type: Article

References (30)

1. Otto CM. Aortic stenosis: echocardiographic evaluation of disease severity, disease progression, and the role of echocardiography in clinical decision making. In: Otto CM, ed. The Practice of Clinical Echocardiography. Philadelphia: W.B. Saunders Company, 1997:405-432.
2. Gorlin R, Gorlin SG. Hydraulic formula for calculation of the area of the stenotic mitral valve, other cardiac valves and central circulatory shunts. Am Heart J 1951;41:1-29.
3. Voelker W, Reul H, Nienhaus G, Stelzer T, Schmitz B, Steegers A, Karsch KR. Comparison of valvular resistance, stroke work loss, and Gorlin valve area for quantification of aortic stenosis. An in vitro study in a pulsatile aortic flow model. Circulation 1995;91:1196-1204.
4. DeGroff CG, Shandas R, Valdes-Cruz L. Analysis of the effect of flow rate on the Doppler continuity equation for stenotic orifice area calculations: a numerical study. Circulation 1998;97:1597-1605.
5. O'Rourke MF, Avolio AA, Nichols WW. Left ventricular-systemic arterial coupling in humans and strategies to improve coupling in disease states. In: Yin FCP, ed. Ventricular/Vascular Coupling. New York: Springer-Verlag, 1987:1-19.
6. Bermejo J, Garcia-Fernandez MA, Torrecilla EG, Bueno H, Moreno MM, San Roman D, Delcan JL. Effects of dobutamine on Doppler echocardiographic indexes of aortic stenosis. J Am Coll Cardiol 1996;28:1206-1213.
7. van Steenhoven AA, van Dongen MEH. Model studies of the closing behaviour of the aortic valve. J Fluid Mech 1979;90:21-27.
8. Lee CSF, Talbot L. A fluid-mechanical study of the closure of heart valves. J Fluid Mech 1979;91:41-63.
9. Clark C. The fluid mechanics of aortic stenosis - I. Theory and steady flow experiments. J Biomech 1976;9:521-528.
10. Bland JM, Altman DG. Statistical methods for assessing agreeement between two methods of clinical measurement. Lancet 1986;8:307-310.
11. Padula RT, Cowan GSM, Camishion RC. Photographic analysis of the active and passive components of cardiac valvular action. J Thorac Cardiovasc Surg 1968;56:790-798.
12. van Steenhoven AA, Verlaan CW, Veenstra PC, Reneman RS. In vivo cinematographic analysis of behavior of the aortic valve. Am J Physiol 1981;240:H286-292.
13. Hernberg J, Weiss B, Keegan A. The ultrasonic recording of aortic valve motion. Radiology 1970;94:361-368.
14. Laniado S, Yellin E, Terdiman R, Meytes I, Stadler J. Hemodynamic correlates of the normal aortic valve echogram. Circulation 1976;54:729-737.
15. Arsenault M, Masani N, Magni G, Yao J, Deras L, Pandian N. Variation of anatomic valve area during ejection in patients with valvular aortic stenosis evaluated by two-dimensional echocardiographic planimetry: comparison with traditional Doppler data. J Am Coll Cardiol 1998;32:1931-1937.
16. Montarello JK, Perakis AC, Rosenthal E, Boyd EG, Yates AK, Deverall PB, Sowton E, Curry PV. Normal and stenotic human aortic valve opening: in vitro assessment of orifice area changes with flow. Eur Heart J 1990;11:484-491.
17. Laskey WK, Kussmaul WG, Noordergraaf A. Valvular and systemic arterial hemodynamics in aortic valve stenosis. A model-based approach. Circulation 1995;92:1473-1478.
18. Shim Y, Hampton TG, Straley CA, Harrison JK, Spero LA, Bashore TM, Pasipoularides AD. Ejection load changes in aortic stenosis. Observations made after balloon aortic valvuloplasty. Circ Res 1992;71:1174-1184.
19. Reul H, Talukder N. Heart valve mechanics. In: Hwang NHC, Gross DR, Patel DJ, eds. Quantitative Cardiovascular Studies. Clinical and Research Applications of Engineering Principles. Baltimore: University Park Press, 1979:527-564.
20. Bellhouse B, Bellhouse F. Fluid mechanics of model normal and stenosed aortic valves. Circ Res 1969;25:693-704.
21. Lloyd TR. Variation in Doppler-derived stenotic aortic valve area during ejection. Am Heart J 1992;124:529-532.
22. Badano L, Cassottano P, Bertoli D, Carratino L, Lucatti A, Spirito P. Changes in effective aortic valve area during ejection in adults with aortic stenosis. Am J Cardiol 1996;78:1023-1028.
23. Tardif JC, Rodrigues AG, Hardy J-F, Leclerc Y, Petitclerc R, Mongrain R, Mercier LA. Simultaneous determination of aortic valve area by the Gorlin formula and by transesophageal echocardiography under different transvalvular flow conditions. Evidence that anatomic aortic valve area does not change with variations in flow in aortic stenosis. J Am Coll Cardiol 1997;29:1296-1302.
24. Burwash IG, Pearlman AS, Kraft CD, Miyake-Hull C, Healy NL, Otto CM. Flow dependence of measures of aortic stenosis severity during exercise. J Am Coll Cardiol 1994;24:1342-1350.
25. Zhou YQ, Faerestrand S, Matre K. Velocity distributions in the left ventricular outflow tract in patients with valvular aortic stenosis. Effect on the measurement of aortic valve area by using the continuity equation. Eur Heart J 1995;16:383-393.
26. Sjoberg BJ, Ask P, Loyd D, Wranne B. Subaortic flow profiles in aortic valve disease: a two-dimensional color Doppler study. J Am Soc Echocardiogr 1994;7:276-285.
27. Otto CM, Pearlman AS, Gardner CL, Enomoto DM, Togo T, Tsuboi H, Ivey TD. Experimental validation of Doppler echocardiographic measurement of volume flow through the stenotic aortic valve. Circulation 1988;78:435-441.
28. Burwash IG, Forbes AD, Sadahiro M, Verrier ED, Pearlman AS, Thomas R, Kraft C, Otto CM. Echo cardiographie volume flow and stenosis severity measures with changing flow rate in aortic stenosis. Am J Physiol 1993;265:H1734-1743.
29. Otto CM, Pearlman AS, Comess KA, Reamer RP, Janko CL, Huntsman LL. Determination of the stenotic aortic valve area in adults using Doppler echocardiography. J Am Coll Cardiol 1986;7:509-517.
30. Tardif JC, Pandian NG, Freire M, Cao QL, Pollard H. On-line echocardiographic assessment of hemodynamic indexes by an adaptive Doppler analysis algorithm and signal/noise ratio calculation. J Am Soc Echocardiogr 1996;9:9-17.