Color Doppler Myocardial Imaging: A New Technique for the Assessment of Myocardial function

Sutherland, George R.; Stewart, Michael J.; Groundstroem, Kaj; Moran, Carmel M.; Fleming, Alan; Guell-Peris, F.J.; Riemersma, R.A.; Fenn, Lynn N.; Fox, Keith A.A.; McDicken, W.N.

doi:10.1016/s0894-7317(14)80001-1

Cited by 575 publications

(276 citation statements)

References 21 publications

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“…In this procedure, the tissue motion velocity is recorded by detecting the Doppler shift associated with posterior dispersion of ultrasound from myocardial tissue. TDI can be subdivided into color-coded TDI [11][12][13][14] and pulsed TDI [15][16][17]. Myocardial velocity, determined using these methods, was compared to wall motion recorded by conventional M-mode echocardiography, and its accuracy and clinical usefulness were demonstrated.…”

Section: Principlementioning

confidence: 99%

The Role of Tissue Doppler Imaging as a New Diagnostic Option in Evaluating Left Ventricular Function

Oki

2003

J Echocardiogr

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In general, pump function and myocardial contractility should be assessed when evaluating left ventricular (LV) systolic function. Ejection fraction obtained from left ventriculography is routinely used as an index of pump function, and the maximum value of the first derivative of LV pressure curve (peak dP/dt) has been used as an index of myocardial contractility. On the other hand, active relaxation of the LV myocardium during early diastole and LV passive filling or compliance during mid-to late diastole are important factors in evaluating LV diastolic function. To obtain this information, the time constant of the LV pressure decay during isovolumic diastole (tau) and LV end-diastolic pressure, which are calculated from the LV pressure curve recorded during cardiac catheterization, is used. However, invasive hemodynamic measurements cannot be performed in all patients, nor are they appropriate for follow-up evaluation involving repeated examinations.Recently, routine echocardiography has facilitated the noninvasive evaluation of LV systolic and diastolic function. The percent fractional shortening of the LV based on M-mode echocardiography and the LV ejection fraction determined by two-dimensional echocardiography are indices of LV pump function, and therefore cannot accurately evaluate LV myocardial contractility. On the other hand, "diastology" has become an important clinical topic [1]. There are several reasons why assessment of diastolic function is important: 1) 30 to 40% of patients evaluated for congestive heart failure have normal LV pump function [2,3]; 2) the transmitral flow velocity pattern, which is recorded using the pulsed Doppler method, may be an index for noninvasive evaluation of LV diastolic function [4]; and 3) the prognosis is poor in patients with LV systolic dysfunction and pseudonormalization or restrictive pattern of the transmitral flow velocity [5,6]. However, it has been shown that the diastolic indices obtained from transmitral and pulmonary venous flow velocities are influenced by loading conditions, especially by the pre- The Role of Tissue Doppler Imaging as a New Diagnostic Option in Evaluating Left AbstractThe widespread use of the pulsed Doppler echocardiography has facilitated the noninvasive evaluation of hemodynamic abnormalities of the left atrium and left ventricle (LV) based on transmitral and pulmonary venous flow velocity patterns. However, it has been shown that loading conditions, especially preload, influence the indices obtained from these velocity patterns. Recently, tissue Doppler imaging (TDI) has been applied to the clinical setting to assess LV myocardial function. In particular, this procedure has the following characteristics: 1) it can provide circumferential and longitudinal information for the LV myocardium; 2) the early diastolic LV myocardial parameters determined by TDI are not influenced by preload; 3) LV myocardial contractility can be evaluated from the early systolic parameters; 4) LV systolic and diastolic asynchrony can be detected; 5) myoca...

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Section: Principlementioning

confidence: 99%

The Role of Tissue Doppler Imaging as a New Diagnostic Option in Evaluating Left Ventricular Function

Oki

2003

J Echocardiogr

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“…11 Color-coded TDI has facilitated quantitative assessment of ventricular wall motion, [12][13][14][15][16][17][18] so it would be helpful if the presence of PSS was made readily visible by this technique without the need for mapping. In the present study, we aimed to develop a color-coded TDI technique that detects PSS on 2-dimensional (D) echocardiograms: detection of diastolic abnormality by dyssynchrony imaging (DADI).…”

Section: Editorial P 37mentioning

confidence: 99%

Detection of Diastolic Abnormality by Dyssynchrony Imaging Correlation With Coronary Artery Disease in Patients Presenting With Visibly Normal Wall Motion

Onishi

Uematsu

Nanto

et al. 2009

Circ J

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Background Post-systolic shortening (PSS) is a sensitive indicator of myocardial ischemia. Methods and ResultsWe have developed a tissue Doppler imaging technique that portrays PSS, and whether PSS correlates with coronary artery disease (CAD) was investigated in 186 patients presenting with chest pain and normal echocardiograms. Delays of the displacement peaks from end-systole were calculated in the apical views and displayed from green (0 ms) to red (≥100 ms): detection of diastolic abnormality by dyssynchrony imaging (DADI). CAD was judged positive by DADI when the left ventricular segments were color-coded red. Patients subsequently underwent thallium-201 myocardial perfusion single-photon emission computed tomography (n=150), coronary angiography (CAG, n=74), or both (n=37). CAD(-) was defined as negative scintigraphy test and/or no significant coronary artery stenosis by CAG. In 43 patients (23%), CAD(+) was confirmed by CAG as >75% diameter stenosis. DADI predicted CAD with sensitivity of 60%, specificity of 75%, predictive accuracy of 72%, positive predictive value of 42%, and negative predictive value of 86%. Among 74 patients who underwent CAG, sensitivity was best for the left anterior descending artery. Conclusions DADI detected the regional diastolic abnormality, which correlated with the presence of CAD in patients presenting with visibly normal wall motion. (Circ J 2009; 73: 125 -131)

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“…Two of these techniques are based on analyzing ultrasound radiofrequency (RF) signals [5][6][7][8][9][10][11][12][13][14][15][16][17]. The first method known as acoustic quantification is based on the detection of the interface between the tissue and the blood in each image.…”

Section: Introductionmentioning

confidence: 99%

“…The second approach known as Tissue Doppler Imaging (TDI) estimates velocity, and strain/strain-rate values of the LV myocardial wall. The different quantitative indices obtained from these parameters are proposed to characterize the RWM [12][13][14][15][16][17]. However, this method is very dependent on the signal to noise ratio of the Doppler data.…”

Section: Introductionmentioning

confidence: 99%

Automatic Classification of Left Ventricular Regional Wall Motion Abnormalities in Echocardiography Images Using Nonrigid Image Registration

et al. 2013

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Identification and classification of left ventricular (LV) regional wall motion (RWM) abnormalities on echocardiograms has fundamental clinical importance for various cardiovascular disease assessments especially in ischemia. In clinical practice, this evaluation is still performed visually which is highly dependent on training and experience of the echocardiographers and therefore suffers from significant interobserver and intraobserver variability. This paper presents a new automatic technique, based on nonrigid image registration for classifying the RWM of LV in a three-point scale. In this algorithm, we register all images of one cycle of heart to a reference image (enddiastolic image) using a hierarchical parametric model. This model is based on an affine transformation for modeling the global LV motion and a B-spline free-form deformation transformation for modeling the local LV deformation. We consider image registration as a multiresolution optimization problem. Finally, a new regional quantitative index based on resultant parameters of the hierarchical transformation model is proposed for classifying RWM in a threepoint scale. The results obtained by our method are quantitatively evaluated to those obtained by two experienced echocardiographers visually as gold standard on ten healthy volunteers and 14 patients (two apical views) and resulted in an absolute agreement of 83 % and a relative agreement of 99 %. Therefore, this diagnostic system can be used as a useful tool as well as reference visual assessment to classify RWM abnormalities in clinical evaluation.

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Color Doppler Myocardial Imaging: A New Technique for the Assessment of Myocardial function

Cited by 575 publications

References 21 publications

The Role of Tissue Doppler Imaging as a New Diagnostic Option in Evaluating Left Ventricular Function

The Role of Tissue Doppler Imaging as a New Diagnostic Option in Evaluating Left Ventricular Function

Detection of Diastolic Abnormality by Dyssynchrony Imaging Correlation With Coronary Artery Disease in Patients Presenting With Visibly Normal Wall Motion

Automatic Classification of Left Ventricular Regional Wall Motion Abnormalities in Echocardiography Images Using Nonrigid Image Registration

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