Echocardiographic evaluation of right ventricular function

European Journal of Echocardiography

Volumn 3, Issue 4, 2002, Pages 252-262

  Burgess, M I ^a   Bright Thomas, R J ^a   Ray, S G ^a  

^a WYTHENSHAWE HOSPITAL   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

CHRONIC LUNG DISEASE; CLINICAL PRACTICE; CONGENITAL HEART DISEASE; CONTROLLED STUDY; DIAGNOSTIC PROCEDURE; DIAGNOSTIC VALUE; DOPPLER ECHOCARDIOGRAPHY; ECHOCARDIOGRAPHY; HEART DISEASE; HEART INFARCTION; HEART LUNG TRANSPLANTATION; HEART MUSCLE RELAXATION; HEART RIGHT VENTRICLE FUNCTION; HEART RIGHT VENTRICLE PERFORMANCE; HUMAN; NUCLEAR MAGNETIC RESONANCE IMAGING; PATIENT CARE; PRIORITY JOURNAL; PROGNOSIS; PULMONARY HYPERTENSION; RETROSPECTIVE STUDY; REVIEW; THREE DIMENSIONAL ECHOCARDIOGRAPHY; THROMBOEMBOLISM; TWO DIMENSIONAL ECHOCARDIOGRAPHY;

ECHOCARDIOGRAPHY; HEART VENTRICLES; HUMANS; VENTRICULAR FUNCTION, RIGHT;

EID: 0036889305     PISSN: 15252167     EISSN: None     Source Type: Journal    
DOI: 10.1053/euje.2002.0172     Document Type: Review

References (111)

1. Morrison DA, Adcock K, Collins CM, Goldman S, Caldwell JH, Schwarz MI. Right ventricular dysfunction and the exercise limitation of chronic obstructive pulmonary disease. J Am Coll Cardiol 1987; 9: 1219-1229.
2. Oliver RM, Fleming JS, Waller DG. Right ventricular function at rest and during exercise in chronic obstructive pulmonary disease. Comparison of two radionuclide techniques. Chest 1993; 103: 74-80.
3. France AJ, Prescott RJ, Biernacki W, Muir AL, MacNee W. Does right ventricular function predict survival in patients with chronic obstructive lung disease? Thorax 1988; 43: 621-626.
4. Burgess M, Mogulkoc N, Bright-Thomas R, Bishop P, Egan J, Ray S. Comparison of echocardiographic markers of right ventricular function in determining prognosis in chronic pulmonary disease. J Am Soc Echocardiogr 2002; in press.
5. Traver GA, Cline MG, Burrows B. Predictors of mortality in chronic obstructive pulmonary disease. A 15-year follow-up study. Am Rev Respir Dis 1979; 119: 895-902.
6. Weitzenblum E. The pulmonary circulation and the heart in chronic lung disease. Monaldi Arch Chest Dis 1994; 49: 231-234.
7. Brent BN, Berger HJ, Matthay RA, Mahler D, Pytlik L, Zaret BL. Physiologic correlates of right ventricular ejection fraction in chronic obstructive pulmonary disease: a combined radionuclide and hemodynamic study. Am J Cardiol 1982; 50: 255-262.
8. Vizza CD, Lynch JP, Ochoa LL, Richardson G, Trulock EP. Right and left ventricular dysfunction in patients with severe pulmonary disease [see comments]. Chest 1998; 113: 576-583.
9. Morpurgo M, Denolin H. The heart in pulmonary hypertension due to chronic lung disease. In: Wagenvoort CA, Denolin H, (eds). Pulmonary Circulation. Amsterdam: Elsevier, 1989: 163-189.
10. Burghuber OC, Salzer-Muhar U, Gotz M. Right ventricular contractility is preserved in patients with cystic fibrosis and pulmonary artery hypertension. Scand J Gastroenterol Suppl 1988; 143: 93-98.
11. D'Alonzo GE, Barst RJ, Ayres SM et al. Survival in patients with primary pulmonary hypertension. Results from a national prospective registry. Ann Intern Med 1991; 115: 343-349.
12. Hinderliter AL, Willis PWt, Barst RJ et al. Effects of long-term infusion of prostacyclin (epoprostenol) on echocardiographic measures of right ventricular structure and function in primary pulmonary hypertension. Primary Pulmonary Hypertension Study Group. Circulation 1997; 95: 1479-1486.
13. Adams JE, 3rd, Siegel BA, Goldstein JA, Jaffe AS. Elevations of CK-MB following pulmonary embolism. A manifestation of occult right ventricular infarction. Chest 1992; 101: 1203-1206.
14. Ribeiro A, Lindmarker P, Johnsson H, Juhlin-Dannfelt A, Jorfeldt L. Pulmonary embolism: a follow-up study of the relation between the degree of right ventricle overload and the extent of perfusion defects. J Intern Med 1999; 245: 601-610.
15. Ribeiro A, Lindmarker P, Juhlin-Dannfelt A, Johnsson H, Jorfeldt L. Echocardiography Doppler in pulmonary embolism: right ventricular dysfunction as a predictor of mortality rate. Am Heart J 1997; 134: 479-487.
16. Wolfe MW, Lee RT, Feldstein ML, Parker JA, Come PC, Goldhaber SZ. Prognostic significance of right ventricular hypokinesis and perfusion lung scan defects in pulmonary embolism. Am Heart J 1994; 127: 1371-1375.
17. Kasper W, Konstantinides S, Geibel A et al. Management strategies and determinants of outcome in acute major pulmonary embolism: results of a multicenter registry. J Am Coll Cardiol 1997; 30: 1165-1171.
18. Konstantinides S, Geibel A, Kasper W, Olschewski M, Blumel L, Just H. Patent foramen ovale is an important predictor of adverse outcome in patients with major pulmonary embolism. Circulation 1998; 97: 1946-1951.
19. Nass N, McConnell MV, Goldhaber SZ, Chyu S, Solomon SD. Recovery of regional right ventricular function after thrombolysis for pulmonary embolism. Am J Cardiol 1999; 83: 804-806, A10.
20. Menzel T, Wagner S, Kramm T et al. Pathophysiology of impaired right and left ventricular function in chronic embolic pulmonary hypertension: changes after pulmonary thromboendarterectomy. Chest 2000; 118: 897-903.
21. Zehender M, Kasper W, Kauder E et al. Right ventricular infarction as an independent predictor of prognosis after acute inferior myocardial infarction. N Engl J Med 1993; 328: 981-988.
22. Zehender M, Kasper W, Kauder E et al. Eligibility for and benefit of thrombolytic therapy in inferior myocardial infarction: focus on the prognostic importance of right ventricular infarction. J Am Coll Cardiol 1994; 24: 362-369.
23. Radford MJ, Johnson RA, Daggett WM, Jr et al. Ventricular septal rupture: a review of clinical and physiologic features and an analysis of survival. Circulation 1981; 64: 545-553.
24. Yetman AT, Freedom RM, McCrindle BW. Outcome in cyanotic neonates with Ebstein's anomaly. Am J Cardiol 1998; 81: 749-754.
25. Bhatia SJ, Kirshenbaum JM, Shemin RJ et al. Time course of resolution of pulmonary hypertension and right ventricular remodeling after orthotopic cardiac transplantation. Circulation 1987; 76: 819-826.
26. Stobierska-Dzierzek B, Awad H, Michler RE. The evolving management of acute right-sided heart failure in cardiac transplant recipients. J Am Coll Cardiol 2001; 38: 923-931.
27. Kendall SW, Bittner HB, Peterseim DS, Campbell KA, Van Trigt P. Right ventricular function in the donor heart. Eur J Cardiothorac Surg 1997; 11: 609-615.
28. Schenk P, Globits S, Koller J et al. Accuracy of echocardiographic right ventricular parameters in patients with different end-stage lung diseases prior to lung transplantation. J Heart Lung Transplant 2000; 19: 145-154.
29. Katz WE, Gasior TA, Quinlan JJ et al. Immediate effects of lung transplantation on right ventricular morphology and function in patients with variable degrees of pulmonary hypertension. J Am Coll Cardiol 1996; 27: 384-391.
30. Nakamura K, Miyahara Y, Ikeda S, Naito T. Assessment of right ventricular diastolic function by pulsed Doppler echocardiography in chronic pulmonary disease and pulmonary thromboembolism. Respiration 1995; 62: 237-243.
31. Marangoni S, Scalvini S, Schena M, Vitacca M, Quadri A, Levi G. Right ventricular diastolic function in chronic obstructive lung disease. Eur Respir J 1992; 5: 438-443.
32. Yu CM, Sanderson JE, Chan S, Yeung L, Hung YT, Woo KS. Right ventricular diastolic dysfunction in heart failure. Circulation 1996; 93: 1509-1514.
33. Giunta A, Tirri E, Maione S et al. Right ventricular diastolic abnormalities in systemic sclerosis. Relation to left ventricular involvement and pulmonary hypertension. Ann Rheum Dis 2000; 59: 94-98.
34. Dittrich HC, Chow LC, Nicod PH. Early improvement in left ventricular diastolic function after relief of chronic right ventricular pressure overload. Circulation 1989; 80: 823-830.
35. Clyne CA, Alpert JS, Benotti JR. Interdependence of the left and right ventricles in health and disease. Am Heart J 1989; 117: 1366-1373.
36. Mizushige K, Morita H, Senda S, Matsuo H. Influence of right ventricular pressure overload on left and right ventricular filling in cor pulmonale assessed with Doppler echocardiography. Jpn Circ J 1989; 53: 1287-1296.
37. Tanaka H, Tei C, Nakao S et al. Diastolic bulging of the interventricular septum toward the left ventricle. An echocardiographic manifestation of negative interventricular pressure gradient between left and right ventricles during diastole. Circulation 1980; 62: 558-563.
38. Louie EK, Lin SS, Reynertson SI, Brundage BH, Levitsky S, Rich S. Pressure and volume loading of the right ventricle have opposite effects on left ventricular ejection fraction [see comments]. Circulation 1995; 92: 819-824.
39. Jiang L, Siu SC, Handschumacher MD et al. Three-dimensional echocardiography. In vivo validation for right ventricular volume and function. Circulation 1994; 89: 2342-2350.
40. Jiang L, Handschumacher MD, Hibberd MG et al. Three-dimensional echocardiographic reconstruction of right ventricular volume: in vitro comparison with two-dimensional methods. J Am Soc Echocardiogr 1994; 7: 150-158.
41. Levine RA, Gibson TC, Aretz T et al. Echocardiographic measurement of right ventricular volume. Circulation 1984; 69: 497-505.
42. Geva T, Powell AJ, Crawford EC, Chung T, Colan SD, Evaluation of regional differences in right ventricular systolic function by acoustic quantification echocardiography and cine magnetic resonance imaging. Circulation 1998; 98: 339-345.
43. Popp RL, Wolfe SB, Hirata T, Feigenbaum H. Estimation of right and left vericular size by ultrasound. A study of the echoes from the interventricular septum. Am J Cardiol 1969; 24: 523-530.
44. Louridas G, Angomachalelis N, Patakas D, Stavropoulos C. Right ventricular echocardiographic, vectorcardiographic and electrocardiographic study in cor pulmonale. Acta Cardiol 1980; 35: 429-436.
45. Bommer W, Weinert L, Neumann A, Neef J, Mason DT, DeMaria A. Determination of right atrial and right ventricular size by two-dimensional echocardiography. Circulation 1979; 60: 91-100.
46. Foale R, Nihoyannopoulos P, McKenna W et al. Echocardiographic measurement of the normal adult right ventricle. Br Heart J 1986; 56: 33-44.
47. Kaul S, Tei C, Hopkins JM, Shah PM. Assessment of right ventricular function using two-dimensional echocardiography, Am Heart J 1984; 107: 526-531.
48. Danchin N, Cornette A, Henriquez A et al. Two-dimensional echocardiographic assessment of the right ventricle in patients with chronic obstructive lung disease. Chest 1987; 92: 229-233.
49. Vitolo E, Castini D, Colombo A et al. Two-dimensional echocardiographic evaluation of right ventricular ejection fraction: comparison between three different methods. Acta Cardiol 1988; 43: 469-480.
50. Ryan T, Petrovic O, Dillon JC, Feigenbaum H, Conley MJ, Armstrong WF. An echocardiographic index for separation of right ventricular volume and pressure overload. J Am Coll Cardiol 1985; 5: 918-927.
51. Mongkolsmai D, Williams GA, Goodgold H, Labovitz AJ. Determination of right ventricular ejection fraction by two-dimensional echocardiographic single plane subtraction method. J Am Soc Echocardiogr 1989; 2: 119-124.
52. Denslow S, Wiles HB. Right ventricular volumes revisited: a simple model and simple formula for echocardiographic determination. J Am Soc Echocardiogr 1998; 11: 864-873.
53. Ninomiya K, Duncan WJ, Cook DH, Olley PM, Rowe RD. Right ventricular ejection fraction and volumes after mustard repair: correlation of two dimensional echocardiograms and cineangiograms. Am J Cardiol 1981; 48: 317-324.
54. Goldhaber SZ, Visani L, De Rosa M. Acute pulmonary embolism: clinical outcomes in the International Cooperative Pulmonary Embolism Registry (ICOPER). Lancet 1999; 353: 1386-1389.
55. Patel JJ, Chandrasekaran K, Maniet AR, Ross JJ Jr, Weiss RL, Guidotti JA. Impact of the incidental diagnosis of clinically unsuspected central pulmonary artery thromboembolism in treatment of critically ill patients. Chest 1994; 105: 986-990.
56. Yock PG, Popp RL. Noninvasive estimation of right ventricular systolic pressure by Doppler ultrasound in patients with tricuspid regurgitation. Circulation 1984; 70: 657-662.
57. Himelman RB, Stulbarg M, Kircher B et al. Noninvasive evaluation of pulmonary artery pressure during exercise by saline-enhanced Doppler echocardiography in chronic pulmonary disease. Circulation 1989; 79: 863-871.
58. Nagueh SF, Kopelen HA, Zoghbi WA. Relation of mean right atrial pressure to echocardiographic and Doppler parameters of right atrial and right ventricular function [see comments]. Circulation 1996; 93: 1160-1169.
59. Simonson JS, Schiller NB. Sonospirometry: a new method for noninvasive estimation of mean right atrial pressure based on two-dimensional echographic measurements of the inferior vena cava during measured inspiration. J Am Coll Cardiol 1988; 11: 557-564.
60. Pai RG, Bansal RC, Shah PM. Determinants of the rate of right ventricular pressure rise by Doppler echocardiography: potential value in the assessment of right ventricular function. J Heart Valve Dis 1994; 3: 179-184.
61. Hirschfeld S, Meyer R, Schwartz DC, Korfhagen J, Kaplan S. Measurement of right and left ventricular systolic time intervals by echocardiography. Circulation 1975; 51: 304-309.
62. Hsieh KS, Sanders SP, Colan SD, MacPherson D, Holland C. Right ventricular systolic time intervals: comparison of echocardiographic and Doppler-derived values. Am Heart J 1986; 112: 103-107.
63. Garcia-Fernandez MA, Cotrim C, Moreno M et al. Prediction of right ventricular ejection fraction by Doppler determination of right systolic time intervals. Rev Port Cardiol 1995; 14: 447, 451-458.
64. Kitabatake A, Inoue M, Asao M et al. Noninvasive evaluation of pulmonary hypertension by a pulsed Doppler technique. Circulation 1983; 68: 302-309.
65. Martin-Duran R, Larman M, Trugeda A et al. Comparison of Doppler-determined elevated pulmonary arterial pressure with pressure measured at cardiac catheterization. Am J Cardiol 1986; 57: 859-863.
66. Torbicki A, Pruszczyk P, Sliwinski P, Kuch-Wochial A. Pulsed wave Doppler and survival in patients with chronic cor pulmonale. Eur Respir J 1993; 6: 188s.
67. Pye MP, Pringle SD, Cobbe SM. Reference values and reproducibility of Doppler echocardiography in the assessment of the tricuspid valve and right ventricular diastolic function in normal subjects. Am J Cardiol 1991; 67: 269-273.
68. Klein AL, Hatle LK, Burstow DJ et al. Comprehensive Doppler assessment of right ventricular diastolic function in cardiac amyloidosis. J Am Coll Cardiol 1990; 15: 99-108.
69. Appleton CP, Hatle LK, Popp RL. Demonstration of restrictive ventricular physiology by Doppler echocardiography. J Am Coll Cardiol 1988; 11: 757-768.
70. Klein AL, Leung DY, Murray RD, Urban LH, Bailey KR, Tajik AJ. Effects of age and physiologic variables on right ventricular filling dynamics in normal subjects. Am J Cardiol 1999; 84: 440-448.
71. Tei C. New non-invasive index for combined systolic and diastolic ventricular function. J Cardiol 1995; 26: 135-136.
72. Eidem BW, O'Leary PW, Tei C, Seward JB. Usefulness of the myocardial performance index for assessing right ventricular function in congenital heart disease. Am J Cardiol 2000; 86: 654-658.
73. Ishii M, Eto G, Tei C et al. Quantitation of the global right ventricular function in children with normal heart and congenital heart disease: a right ventricular myocardial performance index. Pediatr Cardiol 2000; 21: 416-421.
74. Yeo TC, Dujardin KS, Tei C, Mahoney DW, McGoon MD, Seward JB. Value of a Doppler-derived index combining systolic and diastolic time intervals in predicting outcome in primary pulmonary hypertension. Am J Cardiol 1998; 81: 1157-1161.
75. Nishimura E, Ikeda S. Evaluation of right-ventricular function by Doppler echocardiography in patients with chronic respiratory failure. J Int Med Res 1999; 27: 65-73.
76. Yamaguchi K, Miyahara Y. Right ventricular impairment in patients with chronic respiratory failure on home oxygen therapy-non-invasive assessment using a new Doppler index. J Int Med Res 1998; 26: 239-247.
77. Linker DT, Moritz WE, Pearlman AS. A new three-dimensional echocardiographic method of right ventricular volume measurement: in vitro validation. J Am Coll Cardiol 1986; 8: 101-106.
78. Ota T, Fleishman CE, Strub M et al. Real-time, three-dimensional echocardiography: feasibility of dynamic right ventricular volume measurement with saline contrast. Am Heart J 1999; 137: 958-966.
79. Wang XF, Li ZA, Cheng TO et al. Clinical application of three-dimensional transesophageal echocardiography. Am Heart J 1994; 128: 380-388.
80. Papavassiliou DP, Parks WJ, Hopkins KL, Fyfe DA. Three-dimensional echocardiographic measurement of right ventricular volume in children with congenital heart disease validated by magnetic resonance imaging. J Am Soc Echocardiogr 1998; 11: 770-777.
81. Jiang L, Vazquez de Prada JA, Handschumacher MD et al. Three-dimensional echocardiography: in vivo validation for right ventricular free wall mass as an index of hypertrophy. J Am Coll Cardiol 1994; 23: 1715-1722.
82. Helbing WA, Bosch HG, Maliepaard C et al. On-line automated border detection for echocardiographic quantification of right ventricular size and function in children. Pediatr Cardiol 1997; 18: 261-269.
83. Spencer KT, Garcia MJ, Weinart L, Vignon P, Lang R. Assessment of right ventricular and right atrial systolic and diastolic performance using automated border detection. Echocardiography 1999; 16: 643-652.
84. Vignon P, Spencer KT, Mor-Avi VV, Weinert L, Lang RM. Evaluation of global and regional right ventricular function using automated border detection techniques. Echocardiography 1999; 16: 105-116.
85. Hausmann B, Muurling S, Simon R. Dynamic on-line quantification of biventricular function with acoustic quantification (AQ). Validation, reproducibility and normal values of a new echocardiographic approach. Int J Card Imaging 1997; 13: 463-474.
86. Vignon P, Weinert L, Mor-Avi V, Spencer KT, Bednarz J, Lang RM. Quantitative assessment of regional right ventricular function with color kinesis. Am J Respir Crit Care Med 1999; 159: 1949-1959.
87. Hayabuchi Y, Matsuoka S, Kubo M, Kuroda Y. Usefulness of color kinesis imaging for evaluation of regional right ventricular wall motion in patients with surgically repaired tetralogy of Fallot. Am J Cardiol 1998; 82: 1224-1229.
88. Tokgozoglu SL, Caner B, Kabakci G, Kes S. Measurement of right ventricular ejection fraction by contrast echocardiography. Int J Cardiol 1997; 59: 71-74.
89. Lindstrom L, Wilkenshoff UM, Larsson H, Wranne B. Echocardiographic assessment of arrhythmogenic right ventricular cardiomyopathy. Heart 2001; 86: 31-38.
90. Hammarstrom E, Wranne B, Pinto FJ, Puryear J, Popp RL. Tricuspid annular motion. J Am Soc Echocardiogr 1991; 4: 131-139.
91. Florea VG, Florea ND, Sharma R et al. Right ventricular dysfunction in adult severe cystic fibrosis. Chest 2000; 118: 1063-1068.
92. Meluzin J, Spinarova L, Bakala J et al. Pulsed Doppler tissue imaging of the velocity of tricuspid annular systolic motion; a new, rapid, and non-invasive method of evaluating right ventricular systolic function. Eur Heart J 2001; 22: 340-348.
93. Vazquez de Prada JA, Chen MH Guerrero JL et al. Intracardiac echocardiography: in vitro and in vivo validation for right ventricular volume and function. Am Heart J 1996; 131: 320-328.
94. Lehtonen J, Sutinen S, Ikaheimo M, Paakko P. Electrocardiographic criteria for the diagnosis of right ventricular hypertrophy verified at autopsy. Chest 1988; 93: 839-842.
95. Kok-Jensen A, Ebbehoj K. Prognosis of chronic obstructive lung disease in relation to radiology and electrocardiogram. Scand J Respir Dis 1977; 58: 304-310.
96. Incalzi RA, Fuso L, De Rosa M et al. Electrocardiographic signs of chronic cor pulmonale: A negative prognostic finding in chronic obstructive pulmonary disease. Circulation 1999; 99: 1600-1605.
97. Ferlinz J. Measurements of right ventricular volumes in man from single plane cineangiograms. A comparison to the biplane approach. Am Heart J 1977; 94: 87-90.
98. Marving J, Hoilund-Carlsen PF, Chraemmer-Jorgensen B, Gadsboll N. Are right and left ventricular ejection fractions equal? Ejection fractions in normal subjects and in patients with first acute myocardial infarction. Circulation 1985; 72: 502-514.
99. Wackers FJ, Berger HJ, Johnstone DE et al. Multiple gated cardiac blood pool imaging for left ventricular ejection fraction: validation of the technique and assessment of variability. Am J Cardiol 1979; 43: 1159-1166.
100. Markiewicz W, Sechtem U, Higgins CB. Evaluation of the right ventricle by magnetic resonance imaging. Am Heart J 1987; 113: 8-15.
101. Suzuki J, Caputo GR, Masui T, Chang JM, O'Sullivan M, Higgins CB. Assessment of right ventricular diastolic and systolic function in patients with dilated cardiomyopathy using cine magnetic resonance imaging. Am Heart J 1991; 122:1035-1040.
102. Kasper W, Meinertz T, Kersting F, Lollgen H, Limbourg P, Just H. Echocardiography in assessing acute pulmonary hypertension due to pulmonary embolism. Am J Cardiol 1980; 45: 567-572.
103. Shivkumar K, Ravi K, Henry JW, Eichenhorn M, Stein PD. Right ventricular dilatation, right ventricular wall thickening, and Doppler evidence of pulmonary hypertension in patients with a pure restrictive ventilatory impairment. Chest 1994; 106: 1649-1653.
104. Ritchie M, Waggoner AD, Davila-Roman VG, Barzilai B, Trulock EP, Eisenberg PR. Echocardiographic characterization of the improvement in right ventricular function in patients with severe pulmonary hypertension after single-lung transplantation. J Am Coll Cardiol 1993; 22: 1170-1174.
105. Bowers TR, O'Neill WW, Grines C, Pica MC, Safian RD, Goldstein JA. Effect of reperfusion on biventricular function and survival after right ventricular infarction. N Engl J Med 1998; 338: 933-940.
106. Ratner SJ, Huang PJ, Friedman MI, Pierson RN. Assessment of right ventricular anatomy and function by quantitative radionuclide ventriculography. J Am Coll Cardiol 1989; 13: 354-359.
107. Tei C, Dujardin KS, Hodge DO et al. Doppler echocardiographic index for assessment of global right ventricular function [see comments]. J Am Soc Echocardiogr 1996; 9: 838-847.
108. Torbicki A, Kurzyna M, Ciurzynski M et al. Proximal pulmonary emboli modify right ventricular ejection pattern. Eur Respir J 1999; 13: 616-621.
109. Brecker SJ, Gibbs JS, Fox KM, Yacoub MH, Gibson DG. Comparison of Doppler derived haemodynamic variables and simultaneous high fidelity pressure measurements in severe pulmonary hypertension. Br Heart J 1994; 72: 384-389.
110. Maeda M, Yamakado T, Nakano T. Right ventricular diastolic function in patients with hypertrophic cardiomyopathy-an invasive study. Jpn Circ J 1999; 63: 681-687.
111. Caso P, Galderisi M, Cicala S et al. Association between myocardial right ventricular relaxation time and pulmonary arterial pressure in chronic obstructive lung disease: Analysis by pulsed Doppler tissue imaging. J Am Soc Echocardiogr 2001; 14: 970-977.