New method for evaluating left ventricular wall motion by color-coded tissue doppler imaging: In vitro and in vivo studies

Miyatake, Kunio; Yamagishi, Masakazu; Tanaka, Norio; Uematsu, Masaaki; Yamazaki, Nobuo; Mine, Yoshitaka; Sano, Akihiro; Hirama, Makoto

doi:10.1016/0735-1097(94)00421-l

Cited by 463 publications

(213 citation statements)

References 11 publications

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“…Physiological differences in contraction times were characterized by an increase in F mc from apex to base, with the highest values in the septal wall as previously described (4). Mean radial endocardial velocity ranged between 3.7 and 6.8 cm/s and were consistent with those provided by Miyatake et al (19), ie, 5.1 Ϯ 1.0 cm/s in the posterior wall and slightly higher than those obtained in another echocardiography study (20) that ranged between 1.9 and 4.9 cm/s. This slight overestimation was probably due to the differences in the directions of measurements (along the ultrasound beam in echocardiography and along the perpendicular to the endocardial border in our approach).…”

Section: Discussionsupporting

confidence: 90%

Automated estimation of regional mean transition times and radial velocities from cine magnetic resonance images: Evaluation in normal subjects

El-Berbari¹,

Kachenoura²,

Redheuil³

et al. 2009

Magnetic Resonance Imaging

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Purpose:To assess regional ventricular function via an accurate and automated definition of functional parameters. Materials and Methods:An automated method is proposed that estimates reliable regional normalized mean transition times (F mc ) and mean radial velocities (V m ) from cine images. This approach combines a quantitative parametric imaging method and an automated detection of the endocardial border, which is robust to the presence of papillary muscles and nonhomogeneities within the left ventricular cavity. Steadystate free-precession cine-magnetic resonance imaging (MRI) of 36 healthy subjects was analyzed.Results: The quality of the automated segmentation was assessed on a subgroup of 20 subjects by comparing the results with the manual contours traced by an expert. The comparison of functional parameters estimated consequently using the automated and the manual contours yielded (y ϭ 0.959x ϩ 0.016, R ϭ 0.964) for F mc and (y ϭ 0.883x ϩ 0.505, R ϭ 0.935) for V m . On the entire group, F mc was equal to 0.392 Ϯ 0.069 and V m to 5.4 Ϯ 2.3 cm/s. Increasing values of the temporal parameter from the apex to the base and larger values in the septal wall than in lateral wall were demonstrated and were in accordance with the physiology. Conclusion:The proposed method ensures an automated and robust assessment of regional wall motion parameters, which could be clinically useful.

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Section: Discussionsupporting

confidence: 90%

Automated estimation of regional mean transition times and radial velocities from cine magnetic resonance images: Evaluation in normal subjects

El-Berbari¹,

Kachenoura²,

Redheuil³

et al. 2009

Magnetic Resonance Imaging

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“…Although each technique has previously undergone in vitro validation or limited comparisons with other imaging modalities, few data exist to support the validity of each measurement in controls and patients with LV conduction abnormalities. Motion phantoms previously verified the accuracy of TDI with a strong correlation (r ϭ 0.99) between measured and true velocity (28,29). However, the validity of TDI for measuring velocity and time to peak velocity in patients with conduction system disease has gained wide acceptance without validation by other velocity imaging techniques.…”

Section: Discussionmentioning

confidence: 99%

Comparison of myocardial velocities obtained with magnetic resonance phase velocity mapping and tissue doppler imaging in normal subjects and patients with left ventricular dyssynchrony

Delfino

Bhasin

Cole

et al. 2006

Magnetic Resonance Imaging

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Purpose: To compare longitudinal myocardial velocity and time to peak longitudinal velocity obtained with magnetic resonance phase velocity mapping (MR-PVM) and tissue Doppler imaging (TDI), and to assess the reproducibility of each method. Materials and Methods:Longitudinal myocardial velocity was measured by TDI and MR-PVM in 10 normal volunteers and 10 patients with dyssynchrony. The reproducibility of MR-PVM and TDI was assessed on repeated measurements in the 10 normal volunteers.Results: MR and TDI measurements of longitudinal myocardial velocity correlated well (r ϭ 0.86) in both normal subjects and patients with dyssynchrony. However, myocardial velocities measured with MR consistently exceeded velocities measured with TDI. MR and TDI agreed strongly in measuring the time to peak velocity (r ϭ 0.97). The reproducibility of TDI and MR-PVM appeared similar in measuring peak velocities (13.1% vs. 11.0%, respectively; P ϭ NS) and time to peak velocity (9.1% vs. 5.7%, respectively; P ϭ NS). Conclusion:Excellent correlation and reproducibility were observed between MR-PVM and TDI in measuring longitudinal myocardial velocity and time to peak velocity in both normal subjects and patients with dyssynchrony.

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“…Analysis of the pulmonary venous flow patterns [22] , and more recently the use of tissue Doppler imaging [23][24][25][26][27] , strain [28] and strain rate imaging [29] , and colour M-mode Doppler echocardiography [30] have been suggested as promising new tools in the evaluation of left ventricular diastolic function using ultrasound based technology. In this review we will focus on colour M-mode Doppler echocardiography.…”

Section: Introductionmentioning

confidence: 99%

Diastolic Filling and Pressure Imaging: Taking Advantage of the Information in a Colour M-mode Doppler Image

Mey

Sutter

Vierendeels

et al. 2001

European Journal of Echocardiography

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The ability to derive non-invasively information on left ventricular diastolic function on one hand and pressure gradients on the other hand, makes Doppler ultrasound a very attractive tool in clinical practice. However, the limitations of the standard Doppler approaches in differentiating between normal and pseudonormal filling patterns, together with the limitations of the simplified Bernoulli equation for assessing pressure gradients, are well described. In this manuscript the role of colour M-mode Doppler echocardiography as a tool that can overcome these limitations is discussed. Relevant key concepts of the haemodynamics of left ventricular filling and its relationship with colour M-mode Doppler echocardiography are introduced.

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New method for evaluating left ventricular wall motion by color-coded tissue doppler imaging: In vitro and in vivo studies

Abstract: These results indicate that the present system accurately represents tissue velocity and can create two-dimensional color images that facilitate visual assessment of ventricular wall motion.

Cited by 463 publications

References 11 publications

Automated estimation of regional mean transition times and radial velocities from cine magnetic resonance images: Evaluation in normal subjects

Automated estimation of regional mean transition times and radial velocities from cine magnetic resonance images: Evaluation in normal subjects

Comparison of myocardial velocities obtained with magnetic resonance phase velocity mapping and tissue doppler imaging in normal subjects and patients with left ventricular dyssynchrony

Diastolic Filling and Pressure Imaging: Taking Advantage of the Information in a Colour M-mode Doppler Image

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