Comparison of regional myocardial velocities assessed by quantitative 2-dimensional and M-mode color doppler tissue imaging: Influence of the signal-to-noise ratio of color doppler myocardial images on velocity estimators of the doppler tissue imaging system

Garot, Jérôme; Diebold, B.; Dérumeaux, Geneviève; Monin, Jean‐Luc; Bosio, P; Duval-Moulin, Anne-Marie; Castaigne, A; Dubois‐Randé, Jean‐Luc; Guéret, Pascal

doi:10.1016/s0894-7317(98)80004-7

Cited by 20 publications

(11 citation statements)

References 19 publications

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“…In a previous study, we have shown that the lower signal-to-noise ratio could impact on velocity estimators of the Doppler tissue imaging system and lead to underestimated myocardial velocity estimates in humans [29] . Thus, we suggest that quantitative assessment of regional left ventricular contraction abnormalities may be better studied on the current echocardiographs by the myocardial velocity gradient derived from quantitative M-mode colour Doppler tissue imaging than by any other means.…”

Section: Transmyocardial Velocity Gradients As Indicators Of LV Functmentioning

confidence: 97%

“…The concept and technical aspects of the imaging system used in this study have been described in detail elsewhere [23,24,29] . To permit the acquisition of velocity information, the sensitivity of the scanner had to be reduced to allow the tissue echoes to pass through the clutter filter and to remove the blood signals, i.e.…”

Section: Doppler Tissue Imaging Systemmentioning

confidence: 99%

See 1 more Smart Citation

Quantitative systolic and diastolic transmyocardial velocity gradients assessed by M-mode colour Doppler tissue imaging as reliable indicators of regional left ventricular function after acute myocardial infarction

Garot

Dérumeaux²,

Monin³

et al. 1999

European Heart Journal

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AimsThe aim of this study was to determine whether myocardial velocity gradients assessed by M-mode colour Doppler tissue imaging could be of clinical relevance and represent reliable indicators of regional left ventricular function after acute myocardial infarction. Methods and ResultsAmong 64 consecutive patients with a first acute myocardial infarction, in 50 who had a marked asynergy in the parasternal short-axis view at the mid-papillary muscle level, myocardial velocities and velocity gradients were assessed in the anteroseptum and posterior wall by M-mode Doppler tissue imaging. Similar measurements were obtained in 11 matched healthy volunteers who served as a control group.In patients with anterior myocardial infarction, the peak myocardial velocity gradient in the anteroseptum was significantly lower when compared with controls (mean [SD] 0·0 0·5 vs 1·1 0·7 s 1 during systole, P<0·01; and 0·3 0·6 vs 2·0 0·5 s 1 during diastole, P<0·01). Conversely, the peak systolic myocardial velocity gradient in the posterior wall was significantly higher than in controls (2·6 1·2 vs 1·8 1·2 s 1 , P<0·05).In patients with inferior myocardial infarction, the peak velocity gradient in the posterior wall was significantly lower when compared with healthy subjects (0·9 0·6 vs 1·8 1·2 s 1 during systole and 1·4 1·4 vs 4·9 1·2 s 1 during diastole, both P<0·01). The peak systolic tissue velocity gradient in the anteroseptum was significantly higher than in controls (2·1 1·0 vs 1·1 0·7 s

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Section: Transmyocardial Velocity Gradients As Indicators Of LV Functmentioning

confidence: 97%

Section: Doppler Tissue Imaging Systemmentioning

confidence: 99%

Quantitative systolic and diastolic transmyocardial velocity gradients assessed by M-mode colour Doppler tissue imaging as reliable indicators of regional left ventricular function after acute myocardial infarction

Garot

Dérumeaux²,

Monin³

et al. 1999

European Heart Journal

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“…Due to its very high imaging rate, color TM TDI mode offers excellent temporal (<4 ms) and spatial axial (1 mm) resolutions, greater than those of the color 2D TDI mode [11,12]. It thus allows the detection of subtle abnormalities of the myocardial function [11,12,20,21]. The limitations of the color TM TDI mode are as follows:…”

Section: Color Tm Tdi Modementioning

confidence: 99%

“…This color coding (identical to that of conventional color Doppler and color TM TDI modes) is superimposed in real time on the 2D grayscale images (Figure 4-7) [11,12,20]. As with the color TM TDI mode, the use of specific software is required in order to obtain myocardial velocities as a function of time.…”

Section: Color 2d Tdi Modementioning

confidence: 99%

Myocardial Tissue Doppler, Derived Techniques, and Speckle Tracking Imaging

Chetboul¹

2015

Clinical Echocardiography of the Dog and Cat

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“…Tissue Doppler imaging (TDI) is a relatively new echocardiographic technique that shows normal and abnormal patterns of myocardial wall velocities and transmyocardial velocity gradients [1,2]. The most frequent applications of TDI are in the evaluation of regional left ventricular (LV) systolic and diastolic functions [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Visualization of the site of the onset of ventricular depolarization by acceleration mode “Tissue Doppler Imaging” technique

Çavuşoğlu

Ata

Timuralp

et al. 2005

Int J Cardiovasc Imaging

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Tissue Doppler imaging (TDI) is a relatively new echocardiographic technique that shows regional myocardial wall velocities. The aim of this study was to evaluate the potential value of acceleration mode TDI technique for the visualization of the origin of ventricular activation site using the model of right ventricular pacing. Twenty-seven patients with implanted permanent pacemakers were studied by acceleration mode TDI, 4 of these patients were pacemaker dependent. Parasternal and apical chamber views were recorded on video tape by using acceleration mode TDI technique during sinus rhythm with preserved atrioventricular conduction in 23 subjects who were not pacemaker-dependent, and also during right ventricular apical pacing in VVI mode in 27 subjects in whom pacing lower rate was increased if necessary. Fifty images recorded during sinus and pacing rhythm in cineloop were examined by two independent observers who were unaware of the rhythm patterns and by the same observer on two different occasions for localizing the site of onset of ventricular acceleration. The origin of ventricular activation during sinus rhythm started at basal septal part of the ventricle and during pacing started at apical part of the ventricle was considered as correct localizations. The origin of ventricular depolarization was correctly localized for 46 of 50 images (92%) and 44 of 50 images (88%) by the first and the second observers, respectively. Concordant results between observers appeared in 48 of 50 (96%) of images. The diagnostic accuracy of the concordant results was 44 of 48 (91.6%) images. The kappa for interobserver variability was 0.77 (p<0.001), and for intraobserver variability was 0.64 (p<0.001) and 0.63 (p<0.001) for the first and the second observers, respectively. These results suggest that acceleration mode TDI can be used to detect the initial ventricular excited position and seems to have a potential value for localizing of the origin of normal or abnormal myocardial depolarization.

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Comparison of regional myocardial velocities assessed by quantitative 2-dimensional and M-mode color doppler tissue imaging: Influence of the signal-to-noise ratio of color doppler myocardial images on velocity estimators of the doppler tissue imaging system

Cited by 20 publications

References 19 publications

Quantitative systolic and diastolic transmyocardial velocity gradients assessed by M-mode colour Doppler tissue imaging as reliable indicators of regional left ventricular function after acute myocardial infarction

Quantitative systolic and diastolic transmyocardial velocity gradients assessed by M-mode colour Doppler tissue imaging as reliable indicators of regional left ventricular function after acute myocardial infarction

Myocardial Tissue Doppler, Derived Techniques, and Speckle Tracking Imaging

Visualization of the site of the onset of ventricular depolarization by acceleration mode “Tissue Doppler Imaging” technique

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