Echocardiographic volumetry of the right ventricle

Kovalová, Sylva; Nečas, Josef; Cerbák, R; Malík, Petr; Vespalec, J

doi:10.1016/j.euje.2004.04.009

Cited by 29 publications

(15 citation statements)

References 26 publications

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“…Equation is similar to the RVV calculations in Kovalova et al () and Drake et al (). However, as Equation uses the RVA, which may often be difficult to define by TTE, the expression was rearranged to give Equation , which is solely based on distance measurements.…”

Section: Methodssupporting

confidence: 74%

“…The advantage of such an approach would be the inclusion of more dimensions to reflect the dynamics of a 3D object, but still not necessarily the need to visualize the entire RV free wall. There are previous studies where the RVSV has been estimated using 3D models of the RV . In two studies, an ellipsoid model of the RV was applied, where area and length measurements from two orthogonal planes were used as variables in the calculations of the RVSV.…”

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confidence: 99%

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Determination of Right Ventricular Volume by Combining Echocardiographic Distance Measurements

et al. 2016

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Background: The position of the right ventricle (RV), often partly behind the sternum, implies difficulties to image the RV free wall using transthoracic echocardiography (TTE) and consequently limits the possibilities of stroke volume calculations. The aim of this study was to evaluate whether the volume of the right ventricle (RV) can be determined by combining TTE distance measurements that do not need the RV free wall to be fully visualized. Methods: The RV volume was approximated by an ellipsoid composed of three distances. Distance measurements, modeled RV stroke volumes (RVSV), and RV ejection fraction (RVEF) were compared to reference values obtained from cardiac magnetic resonance (CMR) imaging for 12 healthy volunteers. Results: Inter-modality comparisons showed that distance measurements were significantly underestimated in TTE compared to CMR. The modeled RV volumes using TTE distance measurements were underestimated compared to reference CMR volumes. There was, however, for TTE an agreement between modeled RVSV and left ventricular stroke volumes determined by biplane Simpson's rule. Similar agreement was shown between modeled RVSV based on CMR distance measurements and the CMR reference. Regarding RVEF, further studies including patients with a wider range of RVEF are needed to evaluate the method. Conclusion: In conclusion, the ellipsoid model of the RV provides good estimates of RVSVs, but volumes based on distance measurements from different modalities cannot be used interchangeably. (Echocardiography 2016;33:844-853)

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Section: Methodssupporting

confidence: 74%

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confidence: 99%

Determination of Right Ventricular Volume by Combining Echocardiographic Distance Measurements

et al. 2016

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“…Assessment of right ventricular (RV) function is a challenge in clinical practice 16 . With its complex shape, excessive trabeculation and the inability to image the right ventricle in numerous planes, it is impossible to accurately provide volumetric models 17,18 . As a result of the inherent limitations of 2D and conventional Doppler assessment 19 TDI has offered a potentially more accurate quantitative assessment of systolic and diastolic RV function 13,19,20 …”

Section: Comparison Of Previous Studies Assessing Rv Function Postexmentioning

confidence: 99%

The Impact of Marathon Running Upon Ventricular Function as Assessed by 2D, Doppler, and Tissue‐Doppler Echocardiography

et al. 2006

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The impact of prolonged exercise upon right ventricular (RV) function is poorly understood and to date no studies have utilized tissue-Doppler imaging (TDI). Thirty-five marathon runners (age range 18-50 years) volunteered for the study. Two-dimensional, pulsed Doppler, and TDI studies were performed one day before and immediately following race completion. Right and left ventricular (LV) longitudinal TDI myocardial velocities were acquired from the tricuspid annulus and mitral annulus, providing velocity data during systole (S'), early diastole (E'), and late diastole (A'). Transtricuspid and transmitral, early diastolic (E), and late diastolic (A) velocities and ratios were assessed using conventional pulsed-wave Doppler. RV and LV fractional area changes (FAC) were calculated from RV and LV end-diastolic and end-systolic areas recorded from 2D scans in a subsample (n = 23). RV myocardial velocities were unchanged pre-post race in S' (21.1 +/- 2.7 to 21.7 +/- 4.5 cm s(-1), P > 0.05), reduced in E' (23.3 +/- 3.5 to 19.9 +/- 5.3 cm s(-1), P < 0.05), increased in A' (19.1 +/- 3.6 to 23.7 +/- 6.8 cm s(-1), P < 0.05) with a resultant decline in E'/A' (1.28 +/- 0.36 to 0.94 +/- 0.45, P < 0.05). This pattern of data was mirrored in the LV. Similarly both pulsed-Doppler tricuspid and mitral E/A ratios decreased from pre- to postrace (P < 0.05). FAC for the RV and LV were unaltered postrace (P > 0.05). The impact of differing age, finishing time (173-330 min), hemodynamic loading and heart rate upon RV and LV function pre- to postrace was negligible. In conclusion, TDI and 2D data, for both the RV and LV demonstrated little change in systolic function after a marathon race. Conversely, a reduction in diastolic function was observed in both ventricles for which a mechanism has yet to be deduced.

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“…In fact, there is no consensus regarding the echocardiographic assessment of global RV function aside from the gold-standard MRI. Two-dimensional echocardiography using the ellipsoidal shell model for right ventricular volumetry provides usable results for clinical practice, and it has been reported that it yielded data on right ventricular function comparable to those from MRI 19,20. On the other hand, a non-invasive perfusion study could have been utilised to assess the significance of the reduced tricuspid annular velocities.…”

Section: Discussionmentioning

confidence: 99%

From the ACC congress, 24-27 March 2012

Aalbers¹,

Katrancioglu

Candemir

et al. 2012

Cardiovascular Journal of Africa

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BackgroundCoronary artery bypass graft surgery is a well-known and proven method of treatment for coronary artery disease. A modification of this method is complete revascularisation of the right ventricle by sequential bypass grafting of the right coronary artery, the effects of which on ventricular function need to be clarified. We sought to determine the effect of the sequential bypass graft method on right ventricular (RV) function utilising tissue Doppler echocardiography.MethodsA total of 35 coronary artery disease patients (group A: 20 sequential grafts; group B: 15 individual grafts) were enrolled. Patients were examined pre-operatively with tissue Doppler echocardiography for RV function, and again postoperatively after the first month.ResultsPre-operatively, there were no significant differences with regard to demographics or basal echocardiographic findings. On the other hand, postoperative right ventricular diastolic function was found to have improved significantly as the right ventricular E wave and E/A increased (9.5 ± 1.6 vs 7.6 ± 2.7 cm/s, p = 0.009 and 1.4 ± 0.2 vs 0.9 ± 0.2, p ≤ 0.01, respectively), while the A wave and isovolumic relaxation times (6.8 ± 2.1 vs 8.3 ± 3.4 cm/s, p < 0.03 and 55.2 ± 11.9 vs 87.2 ± 16.2 ms, p < 0.001, respectively) decreased. Although the S-wave peak amplitude decreased in group A patients, it did not reach statistical significance.ConclusionsSequential, but not single, complete revascularisation of the right coronary artery appeared to improve the diastolic function of the right ventricle.

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Echocardiographic volumetry of the right ventricle

Abstract: The ellipsoidal shell model of the right ventricle is a good model for right ventricular volumetry.

Cited by 29 publications

References 26 publications

Determination of Right Ventricular Volume by Combining Echocardiographic Distance Measurements

Determination of Right Ventricular Volume by Combining Echocardiographic Distance Measurements

The Impact of Marathon Running Upon Ventricular Function as Assessed by 2D, Doppler, and Tissue‐Doppler Echocardiography

From the ACC congress, 24-27 March 2012

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