(Circulation. 1997;95:2423-2433.)
© 1997 American Heart Association, Inc.
Articles |
Quantitative Assessment of Alterations in Regional Left Ventricular Contractility With Color-Coded Tissue Doppler Echocardiography
Comparison With Sonomicrometry and Pressure-Volume Relations
From the Divisions of Cardiology (J.G., W.A.M., V.K.G.) and Anesthesiology and Critical Care Medicine (D.P.S., M.R.P.), University of Pittsburgh (Pa).
Correspondence to John Gorcsan III, MD, Division of Cardiology, University of Pittsburgh Medical Center, 200 Lothrop St, Pittsburgh, PA 15213-2582. E-mail gorcsan{at}a1.isd.upmc.edu
Background Tissue Doppler imaging (TDI) is a novel method of color-coding myocardial velocity on-line. The objective of the present study was to evaluate endocardial velocity with TDI as a method of objectively quantifying alterations in regional contractility over a wide range induced by inotropic modulation.
Methods and Results Myocardial length crystals were used to simultaneously assess regional left ventricular (LV) function, and high-fidelity pressure and conductance catheters were used to assess global LV contractility by pressure-volume relations in nine open-chest dogs. Mid-LV M-mode and two-dimensional color TDI images were recorded during control and inotropic modulation stages with dobutamine and esmolol. Predicted significant increases in TDI indices occurred with dobutamine: peak systolic velocity of 4.41±1.07 to 6.67±1.07 cm/s*, systolic time-velocity integral (TVI) of 0.43±0.12 to 0.62±0.10 cm*, and diastolic TVI of 0.49±0.11 to 0.71±0.17 cm*. Opposing significant decreases occurred with esmolol: peak systolic velocity of 4.46±0.94 to 2.31±0.81 cm/s*, systolic TVI of 0.47±0.12 to 0.19±0.11 cm*, and diastolic TVI of 0.55±0.11 to 0.33±0.11 cm* (*all P<.001 versus control). Changes in TDI peak systolic velocity were correlated with changes in fractional shortening (r=.88) and shortening velocity (r=.87) by sonomicrometry. Changes in TDI peak velocity from multiple mid-LV sites also correlated significantly with maximal elastance (r=.85±.04) from pressure-volume relations.
Conclusions TDI measures reflect directional and incremental alterations in regional and global LV contractility and have the potential to quantify regional LV function.
Key Words: dynamics • echocardiography • myocardium • mechanics • imaging
This article has been cited by other articles:
 |
|
 |
|
  A. Vassalos, S. Lilley, D. Young, E. Peng, K. MacArthur, J. Pollock, F. Lyall, and M. H.D. Danton Tissue Doppler imaging following paediatric cardiac surgery: early patterns of change and relationship to outcome Interactive CardioVascular and Thoracic Surgery, August 1, 2009; 9(2): 173 - 177. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 D. Oxborough, A. M. Batterham, R. Shave, N. Artis, K. M. Birch, G. Whyte, P. N. Ainslie, and K. P. George Interpretation of two-dimensional and tissue Doppler-derived strain ({varepsilon}) and strain rate data: is there a need to normalize for individual variability in left ventricular morphology? Eur J Echocardiogr, July 1, 2009; 10(5): 677 - 682. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 S. J. Buss, P. M. Humpert, R. Bekeredjian, S. E. Hardt, C. Zugck, D. Schellberg, A. Bauer, A. Filusch, H. Kuecherer, H. A. Katus, et al. Echocardiographic phase imaging to predict reverse remodeling after cardiac resynchronization therapy. J. Am. Coll. Cardiol. Img., May 1, 2009; 2(5): 535 - 543. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 N. Skubas Intraoperative Doppler Tissue Imaging Is a Valuable Addition to Cardiac Anesthesiologists' Armamentarium: A Core Review Anesth. Analg., January 1, 2009; 108(1): 48 - 66. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 C. W. McIntyre, S. G. John, and H. J. Jefferies Advances in the cardiovascular assessment of patients with chronic kidney disease NDT Plus, December 1, 2008; 1(6): 383 - 391. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 G. Derumeaux, F. Ichinose, M. J. Raher, J. G. Morgan, T. Coman, C. Lee, J. M. Cuesta, H. Thibault, K. D. Bloch, M. H. Picard, et al. Myocardial Alterations in Senescent Mice and Effect of Exercise Training: A Strain Rate Imaging Study Circ Cardiovasc Imaging, November 1, 2008; 1(3): 227 - 234. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 T. G. Neilan, T.-T. Ton-Nu, Y. Kawase, R. Yoneyama, K. Hoshino, F. del Monte, R. J. Hajjar, M. H. Picard, R. A. Levine, and J. Hung Progressive nature of chronic mitral regurgitation and the role of tissue Doppler-derived indexes Am J Physiol Heart Circ Physiol, May 1, 2008; 294(5): H2106 - H2111. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 S. Y. Hayashi, A. Seeberger, B. Lind, S. Gunnes, A. Alvestrand, M. M. d. Nascimento, B. Lindholm, and L.-A. Brodin Acute effects of low and high intravenous doses of furosemide on myocardial function in anuric haemodialysis patients: a tissue Doppler study Nephrol. Dial. Transplant., April 1, 2008; 23(4): 1355 - 1361. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
E. Donal, J. A. Sallach, R. D. Murray, J. K. Drinko, S. E. Jasper, J. D. Thomas, and A. L. Klein Contrast-enhanced tissue Doppler imaging of the left atrial appendage is a new quantitative measure of spontaneous echocardiographic contrast in atrial fibrillation Eur J Echocardiogr, January 1, 2008; 9(1): 5 - 11. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 T. P. Abraham, V. L. Dimaano, and H.-Y. Liang Role of Tissue Doppler and Strain Echocardiography in Current Clinical Practice Circulation, November 27, 2007; 116(22): 2597 - 2609. [Full Text] [PDF]
|
|
|
|
|
|
B. Bijnens, P. Claus, F. Weidemann, J. Strotmann, and G. R. Sutherland Investigating Cardiac Function Using Motion and Deformation Analysis in the Setting of Coronary Artery Disease Circulation, November 20, 2007; 116(21): 2453 - 2464. [Full Text] [PDF]
|
|
|
|
 |
|
 L. Hanekom, G.-Y. Cho, R. Leano, L. Jeffriess, and T. H. Marwick Comparison of two-dimensional speckle and tissue Doppler strain measurement during dobutamine stress echocardiography: an angiographic correlation Eur. Heart J., July 2, 2007; 28(14): 1765 - 1772. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 E. G. Caiani, L. Weinert, M. Takeuchi, F. Veronesi, L. Sugeng, C. Corsi, A. Capderou, S. Cerutti, P. Vaida, and R. M. Lang Evaluation of alterations on mitral annulus velocities, strain, and strain rates due to abrupt changes in preload elicited by parabolic flight J Appl Physiol, July 1, 2007; 103(1): 80 - 87. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 E. Barbato, M. Penicka, L. Delrue, F. Van Durme, B. De Bruyne, M. Goethals, W. Wijns, M. Vanderheyden, and J. Bartunek Thr164Ile polymorphism of {beta}2-adrenergic receptor negatively modulates cardiac contractility: implications for prognosis in patients with idiopathic dilated cardiomyopathy Heart, July 1, 2007; 93(7): 856 - 861. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. Penicka, P. Tousek, B. De Bruyne, W. Wijns, O. Lang, J. Madaric, M. Vanderheyden, J. Tintera, M. Maly, P. Widimsky, et al. Myocardial positive pre-ejection velocity accurately detects presence of viable myocardium, predicts recovery of left ventricular function and bears a prognostic value after surgical revascularization Eur. Heart J., June 1, 2007; 28(11): 1366 - 1373. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 C. Schmidt, J. Frielingsdorf, M. Debrunner, R. Tavakoli, M. Genoni, E. Straumann, O. Bertel, and B. Naegeli Acute biventricular pacing after cardiac surgery has no influence on regional and global left ventricular systolic function Europace, June 1, 2007; 9(6): 432 - 436. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 T. Vartdal, H. Brunvand, E. Pettersen, H.-J. Smith, E. Lyseggen, T. Helle-Valle, H. Skulstad, H. Ihlen, and T. Edvardsen Early Prediction of Infarct Size by Strain Doppler Echocardiography After Coronary Reperfusion J. Am. Coll. Cardiol., April 24, 2007; 49(16): 1715 - 1721. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 E. Biagini, M. Valgimigli, P. C. Smits, D. Poldermans, A. F.L. Schinkel, V. Rizzello, E. E.M. Onderwater-, M. Bountioukos, and P. W. Serruys Stress and tissue Doppler echocardiographic evidence of effectiveness of myoblast transplantation in patients with ischaemic heart failure Eur J Heart Fail, October 1, 2006; 8(6): 641 - 648. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
D. P. Strum and M. R. Pinsky Modeling Ischemia-Induced Dyssynchronous Myocardial Contraction Anesth. Analg., October 1, 2006; 103(4): 846 - 853. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M Becker, E Bilke, H Kuhl, M Katoh, R Kramann, A Franke, A Bucker, P Hanrath, and R Hoffmann Analysis of myocardial deformation based on pixel tracking in two dimensional echocardiographic images enables quantitative assessment of regional left ventricular function Heart, August 1, 2006; 92(8): 1102 - 1108. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
E. Messas, C. Yosefy, M. Chaput, J. L. Guerrero, S. Sullivan, P. Menasche, A. Carpentier, M. Desnos, A. A. Hagege, G. J. Vlahakes, et al. Chordal Cutting Does Not Adversely Affect Left Ventricle Contractile Function Circulation, July 4, 2006; 114(1_suppl): I-524 - I-528. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. Cannesson, D. Jacques, M. R. Pinsky, and J. Gorcsan III Effects of modulation of left ventricular contractile state and loading conditions on tissue Doppler myocardial performance index Am J Physiol Heart Circ Physiol, May 1, 2006; 290(5): H1952 - H1959. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
H. Skulstad, S. Urheim, T. Edvardsen, K. Andersen, E. Lyseggen, T. Vartdal, H. Ihlen, and O. A. Smiseth Grading of Myocardial Dysfunction by Tissue Doppler Echocardiography: A Comparison Between Velocity, Displacement, and Strain Imaging in Acute Ischemia J. Am. Coll. Cardiol., April 18, 2006; 47(8): 1672 - 1682. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. Gorcsan III Echocardiographic Strain Imaging for Myocardial Viability: An Improvement Over Visual Assessment? Circulation, December 20, 2005; 112(25): 3820 - 3822. [Full Text] [PDF]
|
|
|
|
|
|
P. Schuster, K. Matre, and S. Faerestrand Assessment of regional timing of left ventricular systolic longitudinal movement by Doppler tissue synchronization imaging in structurally normal hearts Eur J Echocardiogr, October 1, 2005; 6(5): 336 - 343. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. Huez, K. Retailleau, P. Unger, A. Pavelescu, J.-L. Vachiery, G. Derumeaux, and R. Naeije Right and left ventricular adaptation to hypoxia: a tissue Doppler imaging study Am J Physiol Heart Circ Physiol, October 1, 2005; 289(4): H1391 - H1398. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
P. P. Sengupta, B. K. Khandheria, J. Korinek, J. Wang, and M. Belohlavek Biphasic tissue Doppler waveforms during isovolumic phases are associated with asynchronous deformation of subendocardial and subepicardial layers J Appl Physiol, September 1, 2005; 99(3): 1104 - 1111. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. Edvardsen, O. Rodevand, K. Endresen, and H. Ihlen Interaction between left ventricular wall motion and intraventricular flow propagation in acute and chronic ischemia Am J Physiol Heart Circ Physiol, August 1, 2005; 289(2): H732 - H737. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
D. Vinereanu, P. O. Lim, M. P. Frenneaux, and A. G. Fraser Reduced myocardial velocities of left ventricular long-axis contraction identify both systolic and diastolic heart failure--a comparison with brain natriuretic peptide Eur J Heart Fail, June 1, 2005; 7(4): 512 - 519. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
I. A. Sebag, M. D. Handschumacher, F. Ichinose, J. G. Morgan, R. Hataishi, A. C. T. Rodrigues, J. L. Guerrero, W. Steudel, M. J. Raher, E. F. Halpern, et al. Quantitative Assessment of Regional Myocardial Function in Mice by Tissue Doppler Imaging: Comparison With Hemodynamics and Sonomicrometry Circulation, May 24, 2005; 111(20): 2611 - 2616. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
E. Lyseggen, S. I. Rabben, H. Skulstad, S. Urheim, C. Risoe, and O. A. Smiseth Myocardial Acceleration During Isovolumic Contraction: Relationship to Contractility Circulation, March 22, 2005; 111(11): 1362 - 1369. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. Quintana, T. Gustafsson, P. Sundblad, and J. Langanger The effects of heart rate on myocardial velocity and atrio-ventricular displacement during exercise with and without beta-blockade: a tissue Doppler echocardiographic study Eur J Echocardiogr, March 1, 2005; 6(2): 127 - 133. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 H. Von Bibra, I. S Thrainsdottir, A. Hansen, V. Dounis, K. Malmberg, and L. Ryden Tissue Doppler imaging for the detection and quantitation of myocardial dysfunction in patients with type 2 diabetes mellitus Diabetes and Vascular Disease Research, February 1, 2005; 2(1): 24 - 30. [Abstract] [PDF]
|
|
|
|
|
|
T. S. Kato, A. Noda, H. Izawa, A. Yamada, K. Obata, K. Nagata, M. Iwase, T. Murohara, and M. Yokota Discrimination of Nonobstructive Hypertrophic Cardiomyopathy From Hypertensive Left Ventricular Hypertrophy on the Basis of Strain Rate Imaging by Tissue Doppler Ultrasonography Circulation, December 21, 2004; 110(25): 3808 - 3814. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 D. C. Jacques, M. R. Pinsky, D. Severyn, and J. Gorcsan III Influence of Alterations in Loading on Mitral Annular Velocity by Tissue Doppler Echocardiography and Its Associated Ability To Predict Filling Pressures Chest, December 1, 2004; 126(6): 1910 - 1918. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
P Schuster, S Faerestrand, and O J Ohm Reverse remodelling of systolic left ventricular contraction pattern by long term cardiac resynchronisation therapy: colour Doppler shows resynchronisation Heart, December 1, 2004; 90(12): 1411 - 1416. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
P. P. Sengupta, V. Mehta, J. C. Mohan, R. Arora, and B. K. Khandheria Regional myocardial function in an arrhythmogenic milieu: tissue velocity and strain rate imaging in a patient who had hypertrophic cardiomyopathy with recurrent ventricular tachycardia Eur J Echocardiogr, December 1, 2004; 5(6): 438 - 442. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
V. Chetboul, C. Escriou, D. Tessier, V. Richard, J.-L. Pouchelon, H. Thibault, F. Lallemand, C. Thuillez, S. Blot, and G. Derumeaux Tissue Doppler imaging detects early asymptomatic myocardial abnormalities in a dog model of Duchenne's cardiomyopathy Eur. Heart J., November 1, 2004; 25(21): 1934 - 1939. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
K K A Witte, N P Nikitin, R De Silva, J G F Cleland, and A L Clark Exercise capacity and cardiac function assessed by tissue Doppler imaging in chronic heart failure Heart, October 1, 2004; 90(10): 1144 - 1150. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
B Lind, J Nowak, P Cain, M Quintana, and L.-A Brodin Left ventricular isovolumic velocity and duration variables calculated from colour-coded myocardial velocity images in normal individuals Eur J Echocardiogr, August 1, 2004; 5(4): 284 - 293. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R. Ama, P. Segers, C. Roosens, T. Claessens, P. Verdonck, and J. Poelaert The Effects of Load on Systolic Mitral Annular Velocity by Tissue Doppler Imaging Anesth. Analg., August 1, 2004; 99(2): 332 - 338. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. Y. Hayashi, L.-A. Brodin, A. Alvestrand, B. Lind, P. Stenvinkel, M. Mazza do Nascimento, A. R. Qureshi, S. Saha, B. Lindholm, and A. Seeberger Improvement of cardiac function after haemodialysis. Quantitative evaluation by colour tissue velocity imaging Nephrol. Dial. Transplant., June 1, 2004; 19(6): 1497 - 1506. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. Penicka, J. Bartunek, W. Wijns, I. De Wolf, G. R. Heyndrickx, H. De Raedt, E. Barbato, and B. De Bruyne Tissue doppler imaging predicts recovery of left ventricular function after recanalization of an occluded coronary artery J. Am. Coll. Cardiol., January 7, 2004; 43(1): 85 - 91. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
F. Jamal, C. Bergerot, L. Argaud, J. Loufouat, and M. Ovize Longitudinal strain quantitates regional right ventricular contractile function Am J Physiol Heart Circ Physiol, December 1, 2003; 285(6): H2842 - H2847. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
D Pellerin, R Sharma, P Elliott, and C Veyrat Tissue Doppler, strain, and strain rate echocardiography for the assessment of left and right systolic ventricular function Heart, November 1, 2003; 89(90003): iii9 - 17. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
C. Rivas-Gotz, D. S. Khoury, M. Manolios, L. Rao, H. A. Kopelen, and S. F. Nagueh Time interval between onset of mitral inflow and onset of early diastolic velocity by tissue Doppler: a novel index of left ventricular relaxation: Experimental studies and clinical application J. Am. Coll. Cardiol., October 15, 2003; 42(8): 1463 - 1470. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. Bel, E. Messas, O. Agbulut, P. Richard, J. L. Samuel, P. Bruneval, A. A. Hagege, and P. Menasche Transplantation of Autologous Fresh Bone Marrow Into Infarcted Myocardium: A Word of Caution Circulation, September 9, 2003; 108(90101): II-247 - 252. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
C.F Madler, N Payne, U Wilkenshoff, A Cohen, G.A Derumeaux, L.A Pierard, J Engvall, L-A Brodin, G.R Sutherland, A.G Fraser, et al. Non-invasive diagnosis of coronary artery disease by quantitative stress echocardiography: optimal diagnostic models using off-line tissue Doppler in the MYDISE study Eur. Heart J., September 1, 2003; 24(17): 1584 - 1594. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
P Schuster, S Faerestrand, and O-J Ohm Colour tissue velocity imaging can show resynchronisation of longitudinal left ventricular contraction pattern by biventricular pacing in patients with severe heart failure Heart, August 1, 2003; 89(8): 859 - 864. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. Kato, A. Noda, H. Izawa, T. Nishizawa, F. Somura, A. Yamada, K. Nagata, M. Iwase, A. Nakao, and M. Yokota Myocardial velocity gradient as a noninvasively determined index of left ventricular diastolic dysfunction in patients with hypertrophic cardiomyopathy J. Am. Coll. Cardiol., July 16, 2003; 42(2): 278 - 285. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 G. H.L. Tang, P. W.M. Fedak, T. M. Yau, R. D. Weisel, A. Kulik, D. A.G. Mickle, and R.-K. Li Cell transplantation to improve ventricular function in the failing heart Eur. J. Cardiothorac. Surg., June 1, 2003; 23(6): 907 - 916. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. Vogel, M. M.H. Cheung, J. Li, S. B. Kristiansen, M. R. Schmidt, P. A. White, K. Sorensen, and A. N. Redington Noninvasive Assessment of Left Ventricular Force-Frequency Relationships Using Tissue Doppler-Derived Isovolumic Acceleration: Validation in an Animal Model Circulation, April 1, 2003; 107(12): 1647 - 1652. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
F. Weidemann, C. Dommke, B. Bijnens, P. Claus, J. D'hooge, P. Mertens, E. Verbeken, A. Maes, F. Van de Werf, I. De Scheerder, et al. Defining the Transmurality of a Chronic Myocardial Infarction by Ultrasonic Strain-Rate Imaging: Implications for Identifying Intramural Viability: An Experimental Study Circulation, February 18, 2003; 107(6): 883 - 888. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
C-M Yu, H Lin, Q Zhang, and J E Sanderson High prevalence of left ventricular systolic and diastolic asynchrony in patients with congestive heart failure and normal QRS duration Heart, January 1, 2003; 89(1): 54 - 60. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. Ghostine, C. Carrion, L. C. G. Souza, P. Richard, P. Bruneval, J.-T. Vilquin, B. Pouzet, K. Schwartz, P. Menasche, and A. A. Hagege Long-Term Efficacy of Myoblast Transplantation on Regional Structure and Function After Myocardial Infarction Circulation, September 24, 2002; 106(12_suppl_1): I-131 - I-136. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
F. Weidemann, F. Jamal, G. R. Sutherland, P. Claus, M. Kowalski, L. Hatle, I. De Scheerder, B. Bijnens, and F. E. Rademakers Myocardial function defined by strain rate and strain during alterations in inotropic states and heart rate Am J Physiol Heart Circ Physiol, August 1, 2002; 283(2): H792 - H799. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. Edvardsen, B. L. Gerber, J. Garot, D. A. Bluemke, J. A.C. Lima, and O. A. Smiseth Quantitative Assessment of Intrinsic Regional Myocardial Deformation by Doppler Strain Rate Echocardiography in Humans: Validation Against Three-Dimensional Tagged Magnetic Resonance Imaging Circulation, July 2, 2002; 106(1): 50 - 56. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
N. L. Greenberg, M. S. Firstenberg, P. L. Castro, M. Main, A. Travaglini, J. A. Odabashian, J. K. Drinko, L. L. Rodriguez, J. D. Thomas, and M. J. Garcia Doppler-Derived Myocardial Systolic Strain Rate Is a Strong Index of Left Ventricular Contractility Circulation, January 1, 2002; 105(1): 99 - 105. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
C. Pislaru, C. J. Bruce, M. Belohlavek, J. B. Seward, and J. F. Greenleaf Intracardiac measurement of pre-ejection myocardial velocities estimates the transmural extent of viable myocardium early after reperfusion in acute myocardial infarction J. Am. Coll. Cardiol., November 15, 2001; 38(6): 1748 - 1756. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
G I W Galasko, S Basu, A Lahiri, and R Senior A prospective comparison of echocardiographic wall motion score index and radionuclide ejection fraction in predicting outcome following acute myocardial infarction Heart, September 1, 2001; 86(3): 271 - 276. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. J. Sinusas, X. Papademetris, R. T. Constable, D. P. Dione, M. D. Slade, P. Shi, and J. S. Duncan Quantification of 3-D regional myocardial deformation: shape-based analysis of magnetic resonance images Am J Physiol Heart Circ Physiol, August 1, 2001; 281(2): H698 - H714. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 A. A. IONESCU, A.-A. IONESCU, N. PAYNE, I. OBIETA-FRESNEDO, A. G. FRASER, and D. J. SHALE Subclinical Right Ventricular Dysfunction in Cystic Fibrosis . A Study Using Tissue Doppler Echocardiography Am. J. Respir. Crit. Care Med., April 1, 2001; 163(5): 1212 - 1218. [Abstract] [Full Text]
|
|
|
|
|
|
T. Edvardsen, H. Skulstad, S. Aakhus, S. Urheim, and H. Ihlen Regional myocardial systolic function during acute myocardial ischemia assessed by strain Doppler echocardiography J. Am. Coll. Cardiol., March 1, 2001; 37(3): 726 - 730. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
G. Derumeaux, J. Loufoua, G. Pontier, A. Cribier, and M. Ovize Tissue Doppler Imaging Differentiates Transmural From Nontransmural Acute Myocardial Infarction After Reperfusion Therapy Circulation, January 30, 2001; 103(4): 589 - 596. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 E. Vermes, R. Houel, M. Simon, P. Le Besnerais, and D. Loisance Doppler tissue imaging to predict myocardial recovery during mechanical circulatory support Ann. Thorac. Surg., December 1, 2000; 70(6): 2149 - 2151. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. Urheim, T. Edvardsen, H. Torp, B. Angelsen, and O. A. Smiseth Myocardial Strain by Doppler Echocardiography : Validation of a New Method to Quantify Regional Myocardial Function Circulation, September 5, 2000; 102(10): 1158 - 1164. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
K. Shan, R. J. Bick, B. J. Poindexter, S. Shimoni, G. V. Letsou, M. J. Reardon, J. F. Howell, W. A. Zoghbi, and S. F. Nagueh Relation of tissue Doppler derived myocardial velocities to myocardial structure and beta-adrenergic receptor density in humans J. Am. Coll. Cardiol., September 1, 2000; 36(3): 891 - 896. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
P. Palka, A. Lange, J. E. Donnelly, and P. Nihoyannopoulos Differentiation Between Restrictive Cardiomyopathy and Constrictive Pericarditis by Early Diastolic Doppler Myocardial Velocity Gradient at the Posterior Wall Circulation, August 8, 2000; 102(6): 655 - 662. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
L. Hatle and G. R. Sutherland Regional myocardial function--a new approach. Eur. Heart J., August 1, 2000; 21(16): 1337 - 1357. [PDF]
|
|
|
|
|
|
C. Jarnert, M. Mejhert, M. Ring, H. Persson, and M. Edner Doppler tissue imaging in congestive heart failure patients due to diastolic or systolic dysfunction: a comparison with Doppler echocardiography and the atrio-ventricular plane displacement technique Eur J Heart Fail, June 1, 2000; 2(2): 151 - 160. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
G. Derumeaux, M. Ovize, J. Loufoua, G. Pontier, X. Andre-Fouet, and A. Cribier Assessment of Nonuniformity of Transmural Myocardial Velocities by Color-Coded Tissue Doppler Imaging : Characterization of Normal, Ischemic, and Stunned Myocardium Circulation, March 28, 2000; 101(12): 1390 - 1395. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
D. P. Strum and M. R. Pinsky Modeling of Asynchronous Myocardial Contraction by Effective Stroke Volume Analysis Anesth. Analg., February 1, 2000; 90(2): 243 - 243. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
D. P. Strum and M. R. Pinsky Esmolol-Induced Regional Wall Motion Abnormalities Do Not Affect Regional Ventricular Elastances Anesth. Analg., February 1, 2000; 90(2): 252 - 252. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
F Larrazet, D Pellerin, D Daou, S Witchitz, C Fournier, A Prigent, and C Veyrat Concordance between dobutamine Doppler tissue imaging echocardiography and rest reinjection thallium-201 tomography in dysfunctional hypoperfused myocardium Heart, October 1, 1999; 82(4): 432 - 437. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
G. Geskin, C. M. Kramer, W. J. Rogers, T. M. Theobald, D. Pakstis, Y.-L. Hu, and N. Reichek Quantitative Assessment of Myocardial Viability After Infarction by Dobutamine Magnetic Resonance Tagging Circulation, July 21, 1998; 98(3): 217 - 223. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
G. Derumeaux, P. Mulder, V. Richard, A. Chagraoui, C. Nafeh, F. Bauer, J.-P. Henry, and C. Thuillez Tissue Doppler Imaging Differentiates Physiological From Pathological Pressure-Overload Left Ventricular Hypertrophy in Rats Circulation, April 2, 2002; 105(13): 1602 - 1608. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. Edvardsen, S. Urheim, H. Skulstad, K. Steine, H. Ihlen, and O. A. Smiseth Quantification of Left Ventricular Systolic Function by Tissue Doppler Echocardiography: Added Value of Measuring Pre- and Postejection Velocities in Ischemic Myocardium Circulation, April 30, 2002; 105(17): 2071 - 2077. [Abstract] [Full Text] [PDF]
|
|