Comparison of Myocardial Tissue Velocities Measured by Two-Dimensional Speckle Tracking and Tissue Doppler Imaging

Ng, Arnold C.T.; Tran, Da T.; Newman, Mark; Allman, Christine; Vidaic, Jane; Kadappu, K.; Boyd, Anita; Thomas, Liza; Leung, Dominic Y.

doi:10.1016/j.amjcard.2008.05.027

Cited by 41 publications

(28 citation statements)

References 13 publications

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“…As the tracking is based on grayscale B-mode images, it is in principle angle-independent. However, traditional tissue Doppler imaging (TDI)-based measurements, which are angle-dependent owing to use of the Doppler effect and cannot simultaneously qualify opposite deformation in the long and short axes, show less accuracy [12,13,14]. The accuracy of 2D-STE has also been confirmed using sonomicrometry and magnetic resonance imaging (MRI) tagging as reference methods [8].…”

Section: Introductionmentioning

confidence: 91%

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2D-Speckle Tracking Echocardiography Contributes to Early Identification of Impaired Left Ventricular Myocardial Function in Patients with Chronic Kidney Disease

Yan¹,

Hao

et al. 2010

Nephron Clin Pract

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Background/Aims: Our aim was to investigate left ventricular (LV) physiology and short-axis and long-axis regional LV myocardial function throughout the cardiac cycle with 2D-speckle tracking echocardiography (2D-STE) in patients with chronic kidney disease. Methods: The study population consisted of 40 maintenance hemodialysis patients (hemodialysis group), 20 uremic patients hospitalized for creation of primary arteriovenous fistula (nondialysis group), and a control group of 20 healthy volunteers. LV regional longitudinal, circumferential and radial peak systolic velocity (Vs); early diastolic velocity (Ve); and peak systolic strain (Ε) were measured with 2D-STE. Results: Increased LV wall thickness and a decreased E/A ratio were found in the nondialysis and hemodialysis groups as compared to the control group, but there was no difference between the 2 study groups. Longitudinal Vs and Ve of the LV basal segment and middle segment in hemodialysis group and nondialysis group were all slower than those in the control group, and Vs in the nondialysis group was slower than that of the hemodialysis group. Circumferential and radial Vs and Ve were not different among the 3 groups, except that the radial Vs of LV basal segment was markedly decreased in the nondialysis group. Longitudinal peak systolic strain in the hemodialysis and nondialysis groups were both decreased as compared to the control group. Circumferential and radial peak systolic strain was decreased only in the nondialysis group. Conclusions: 2D-STE may be used to identify early abnormalities in patients with chronic kidney disease who have preserved LV ejection fraction. LV regional function appeared to be better in the hemodialysis group than that in the nondialysis group.

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Section: Introductionmentioning

confidence: 91%

“…Most studies have used conventional echocardiographic indices of cardiac function, such as EF and FS, which are frequently found to be normal in CKD patients [14,21]. LV systolic ejection is a coordinated action involving fiber shortening in 3 directions that produces wall thickening and blood displacement.…”

Section: Discussionmentioning

confidence: 99%

2D-Speckle Tracking Echocardiography Contributes to Early Identification of Impaired Left Ventricular Myocardial Function in Patients with Chronic Kidney Disease

Yan¹,

Hao

et al. 2010

Nephron Clin Pract

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“…Another possible limitation is the echocardiographic evaluation of e' by speckle tracking. Even though the e' derived from speckle tracking shows significantly lower velocities than that from tissue Doppler, the speckle-tracking-derived E/e' is at least equal to the tissue Doppler E/e' for the prediction of elevated left ventricular filling pressures [36]. In addition, intraindividual changes that were independent of the evaluation method were focused on.…”

Section: Potential Limitationsmentioning

confidence: 99%

Adaptive servoventilation in diastolic heart failure and Cheyne-Stokes respiration

Bitter¹,

Westerheide²,

Faber³

et al. 2009

European Respiratory Journal

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A high prevalence of nocturnal Cheyne-Stokes respiration (CSR) has been documented in patients with heart failure with normal left ventricular ejection fraction (HFNEF). The aim of the present study was to investigate the effects of adaptive servoventilation (ASV) for treatment of CSR in these patients.In 60 patients with HFNEF, defined according to current European Society of Cardiology guidelines, CSR was documented by polysomnography (apnoea/hypopnoea index (AHI) of .15 events?h -1 ). ASV treatment was offered to all patients; 21 initially rejected treatment, withdrew from treatment or presented noncompliant during follow-up (controls), whereas ongoing ASV therapy was initiated in 39 patients (ASV group). Echocardiography, cardiopulmonary exercise testing and measurement of N-terminal-pro-brain natriuretic peptide were performed at baseline and follow-up (11.6¡3 months). ASV therapy led to a significant reduction in AHI, longest apnoea and hypopnoea length, maximum and mean oxygen desaturation by pulse oximetry, percentage of study time with an oxygen saturation of ,90% and arousal index. In addition, significant positive effects could be confirmed on absolute and predicted peak oxygen consumption, oxygen consumption at the individual aerobic-anaerobic threshold, oxygen pulse, as well as left atrial size, and transmitral flow patterns (mean early diastolic lengthening velocity and the ratio of peak early Doppler mitral inflow velocity to this lengthening velocity).ASV effectively attenuates CSR in patients with HFNEF and improves heart failure symptoms and cardiac function. Whether or not this is accompanied by an improved prognosis remains to be determined.

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“…We have no information about why vendor uses speed instead of velocity in their software. Furthermore, speckle trackingbased speed or velocity data is not comparable to values obtained with tissue Doppler imaging (14), which necessitates determination of normal or abnormal velocity or speed values for speckle tracking as in tissue Doppler imaging. Another important aspect of speckle derived speed or velocity determination is segmental variation of data, which necessitates the use of sitespecific normal ranges as recommended by Marvick et al (15).…”

Section: Discussionmentioning

confidence: 99%

Speckle tracking based myocardial velocities: our experience with novel software

Baysan¹,

Akyol²,

Buğan³

et al. 2010

Anadolu Kardiyol Derg

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Objective: Speckle tracking is a new imaging modality capable of providing information about myocardial motion in all three directions: longitudinal, circumferential and radial. There are many software packages with their unique tracking algorithms and user interfaces in the market. We aimed to evaluate the feasibility of QLAB software in clinical practice and speckle based myocardial velocities in healthy subjects. Methods: Thirty-two subjects were enrolled in the study. Images from apical four-chamber, apical two-chamber, parasternal short-axis (mitral valve-apical levels) views were acquired and analyzed offline with QLAB. We measured speed and velocity data in longitudinal, circumferential and radial directions. Time percent of these events were also calculated. In the final data analysis 825 of 832 segments (99.2%) were included. Mann Whitney U, Student's t and Kendall's tau-b coefficient tests were used for statistical analysis. Results: We determined that circumferential speed was significantly higher (p<0.001) than radial velocity in both parasternal short-axis views. Likewise, longitudinal speed was higher (p<0.001) than radial velocity in apical views. Notwithstanding the speed and velocity data, time percent of radial velocity were significantly lower (p<0.001 for all) than their longitudinal or circumferential counterparts. We also notified that apex was the segment reaching its maximum speed at earliest time. QLAB measurement time was relatively long (8.1±1.7 min) and intraobserver agreement was lost in 3% of the segments. Conclusion: In addition to these findings, we consider QLAB software package for speckle tracking needs some improvements to shorten measurement time and decrease user intervention. (Anadolu Kardiyol Derg 2010; 10: 233-8) Key words: Speckle tracking, QLAB software, myocardial velocities ÖZET Amaç: Benek izleme (speckle tracking), miyokart hareketinin tüm yönleri hakkında (longitüdinal, sirkümferansiyal ve radiyal) bilgi veren yeni bir görüntüleme yöntemidir. Bu amaçla kendi takip algoritmaları ve kullanıcı arabirimlerine sahip birçok yazılım piyasaya sunulmuştur. Biz bu çalış-mada, QLAB yazılımının klinik uygulamada kullanılabilirliğini ve sağlıklı bireylerde miyokart hızlarını benek izleme yöntemiyle değerlendirmeyi amaçladık. Yöntemler: Çalışmaya 32 sağlıklı birey dahil edildi. Apikal 4 oda, apikal 2 oda ve parasternal kısa eksen (mitral kapak ve papiller kas seviyesi) görüntüleri her bireyde alınarak QLAB yazılımıyla incelendi. Longitüdinal, sirkümferansiyal ve radiyal yöndeki hız ve vektöriyel hız verileri ölçül-dü. Bu olayların gerçekleştiği zaman, yüzde olarak hesaplandı. Görüntülenmeye çalışılan 832 segmentten 825'i (%99.2) değerlendirmeye alındı. İstatistiksel analizde Mann Whitney U, Student t ve Kendall's tau-b katsaysı testleri kullanıldı. Bulgular: Sirkümferansiyal hız her iki parasternal kısa eksen kesitlerinde de radiyal hız vektöründen daha fazlaydı (p<0.001). Benzer olarak longitüdinal hız radiyal hız vektöründen apikal kesitlerde daha fazlaydı(p<0.001). Bununla bi...

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Comparison of Myocardial Tissue Velocities Measured by Two-Dimensional Speckle Tracking and Tissue Doppler Imaging

Cited by 41 publications

References 13 publications

2D-Speckle Tracking Echocardiography Contributes to Early Identification of Impaired Left Ventricular Myocardial Function in Patients with Chronic Kidney Disease

2D-Speckle Tracking Echocardiography Contributes to Early Identification of Impaired Left Ventricular Myocardial Function in Patients with Chronic Kidney Disease

Adaptive servoventilation in diastolic heart failure and Cheyne-Stokes respiration

Speckle tracking based myocardial velocities: our experience with novel software

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