MR velocity mapping of tricuspid flow: Correction for through‐plane motion

Kayser, Hein W. M.; Stoel, Berend C.; Wall, Ernst E. van der; Geest, Rob J. Der Van; Roos, Albert de

doi:10.1002/jmri.1880070410

Cited by 63 publications

(36 citation statements)

References 12 publications

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“…LV diastolic function was studied from the transmitral flow rate graphs, assessed with both 3D three-directional and 2D onedirectional VE MRI as previously described ( Fig. 1) (7,(9)(10)(11). Acquisition parameters for 3D three-directional MRI were: repetition time (TR) ms/echo time (TE) ms 7.5/4.3; flip angle (FA), 10 ; field of view (FOV), 370 mm; 3D volume imaging with 48-mm slab thickness reconstructed into 12 Â 4-mm sections; in-plane acquisition resolution 2.9 Â 3.8 mm, Figure 1.…”

Section: Mr Imaging Protocolmentioning

confidence: 99%

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Left ventricular diastolic function assessment from three‐dimensional three‐directional velocity‐encoded MRI with retrospective valve tracking

Brandts

Bertini

Dijk

et al. 2011

Magnetic Resonance Imaging

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Purpose: To compare parameters describing left ventricular (LV) diastolic function obtained with three-dimensional (3D) three-directional velocity-encoded (VE) MRI with retrospective valve tracking and two-dimensional (2D) one-directional VE MRI in patients with ischemic heart failure. Second, to compare classification of LV diastolic function, and in particular for discriminating restrictive filling patterns, with both MRI techniques versus Doppler echocardiography. Materials and Methods:The 3D and 2D VE MRI early (E) and atrial (A) peak flow rate indices, determined from transmitral waveform analyses, were compared. Also, net forward flow volume per cycle and transmitral regurgitation fraction were determined. Agreement in classifying diastolic filling patterns between 3D and 2D VE MRI versus Doppler echocardiography was evaluated using kappa statistics.Results: The 3D three-directional VE MRI with retrospective valve tracking was statistically significantly different from 2D one-directional VE MRI for net forward flow volume and regurgitation fraction through the mitral valve and all parameters describing the diastolic waveform filling pattern, except for the E deceleration time and E/A filling ratio. Kappa-agreement between 3D three-directional VE MRI with retrospective valve tracking and echocardiography for classifying diastolic filling patterns was superior to 2D one-directional VE MRI and echocardiography (i.e., k ¼ 0.91 versus k ¼ 0.79, respectively). Conclusion:The 3D three-directional VE MRI with retrospective valve tracking better describes LV diastolic function as compared to 2D one-directional VE MRI in patients with ischemic heart failure.

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Section: Mr Imaging Protocolmentioning

confidence: 99%

“…For both 3D-and 2D VE MRI acquisitions, through-plane-motion correction in combination with correction for local phase offset errors was performed as suggested by Kayser et al (9) from the velocity determined in a region placed in the myocardium in the lateral wall near the annulus (Fig. 1).…”

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confidence: 99%

Left ventricular diastolic function assessment from three‐dimensional three‐directional velocity‐encoded MRI with retrospective valve tracking

Brandts

Bertini

Dijk

et al. 2011

Magnetic Resonance Imaging

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“…Recently, velocity-encoded cardiac magnetic resonance (VE-CMR) has been proposed as a reference method for transvalvular flow quantification (19,20); in particular, the use of a 3-dimensional (3D) 3-directional acquisition has been shown to be able to optimize the conventional 2D 1-directional acquisition (21)(22)(23)(24), providing independent MR flow quantification. Therefore, the aim of the current study was to explore in patients with functional MR, the feasibility and accuracy of direct measurement of EROA and quantification of Rvol with RT3DE, in a head-to-head comparison with VE-CMR.…”

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confidence: 99%

Quantification of Functional Mitral Regurgitation by Real-Time 3D Echocardiography

Marsan

Westenberg

Ypenburg

et al. 2009

JACC: Cardiovascular Imaging

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“…pulmonary valves, respectively. However, little data are available demonstrating this application of MR. Kayser et al [21] emphasized the importance of tricuspid annular motion correction when measuring transtricuspid flow. This correction was achieved by subtracting velocities measured in soft tissue surrounding the valve from the registered velocities through the tricuspid valve.…”

Section: Abbildungmentioning

confidence: 99%

“…This correction was achieved by subtracting velocities measured in soft tissue surrounding the valve from the registered velocities through the tricuspid valve. Normal and pathological values characterizing right ventricular inflow are presented in their paper [21]. A tagging approach (as mentioned for the mitral and aortic valve) is also applicable to correct for cyclic motion of the right-sided base of the heart, however, to our knowledge, no data using this technique are available yet.…”

Section: Abbildungmentioning

confidence: 99%

Valvular Heart Disease: Assessment of Valve Morphology and Quantification Using MR

Schwitter

2000

Herz

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For clinical evaluation and decision-making in patients with valvular heart disease, the diagnostic armamentarium expands steadily. This evolution makes it difficult to choose the most appropriate approach for a specific valvular lesion. It may also reflect our uncertainty of what are the findings that best predict clinical outcome of patients, e.g. after surgery. Accordingly, for each type of valvular lesion, some pathopysiological considerations are stated in order to derive the most important measures that would allow optimal guidance of patients. Based on these considerations the value of an MR study is discussed for each valvular lesion. Newest advances in MR technology allow for highly accurate measurements of regurgitant volumes and hence, MR may be the method of choice for a quantitative evaluation of regurgitant valves. For assessment of stenosis severity, measurement of transvalvular pressure gradient is an appropriate measure and MR may not confer benefits over echocardiography, provided the ultrasound window is adequate (and stroke volume is in the normal range). With respect to surgical treatment, valvular morphology is of pivotal importance, particularly for the mitral valve, and echocardiography still appears to be the first line method. Little data relate lesion severity and/or morphology to clinical outcome. Conversely, the extent of cardiac adaptation to pressure- and/or volume-overload, i.e. ventricular remodeling, is a strong predictor of outcome, and is therefore most important for final judgement of the patient. For assessment of left and right ventricular remodeling, echocardiography typically provides all the necessary information. However, in special cases with discrepant findings, with inadequate ultrasound window, or in the preoperative work-up, MR may provide important information regarding cardiac adaptation to valvular lesion.

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MR velocity mapping of tricuspid flow: Correction for through‐plane motion

Cited by 63 publications

References 12 publications

Left ventricular diastolic function assessment from three‐dimensional three‐directional velocity‐encoded MRI with retrospective valve tracking

Left ventricular diastolic function assessment from three‐dimensional three‐directional velocity‐encoded MRI with retrospective valve tracking

Quantification of Functional Mitral Regurgitation by Real-Time 3D Echocardiography

Valvular Heart Disease: Assessment of Valve Morphology and Quantification Using MR

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