Cardiac imaging in valvular heart disease

Choo, Wai Sun; Steeds, Richard P.

doi:10.1259/bjr/54030257

Cited by 14 publications

(5 citation statements)

References 62 publications

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“…Therefore, the jet of regurgitation, especially when it is mild, can be better shown by GRE imaging. Velocity mapping and flow quantification by phase contrast MRI enable direct measurement of the regurgitant flow [59]. On in-plane balanced SSFP or phase contrast cine imaging, the regurgitant flow is typically shown as a triangular jet into the right atrium.…”

Section: Saremi Et Almentioning

confidence: 99%

“…The regurgitant fraction will be: TV / RV stroke volumes × 100%. This method is commonly used for the mitral valve with high accuracy rates [59]. The accuracy of this method for TR measurement is lower in the presence of irregular rhythms or pulmonary valve regurgitation.…”

Section: Imaging Evaluation Of Tricuspid Valvementioning

confidence: 99%

“…In moderate regurgitation, it extends 3-5 cm. The TV flow varies with inspiration, and obtaining the measurements at end-expiration is suggested [59]. Respiratory variation of TR can be checked by realtime MRI on a single-shot cine-balanced SSFP sequence.…”

Section: Imaging Evaluation Of Tricuspid Valvementioning

confidence: 99%

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Imaging Evaluation of Tricuspid Valve: Analysis of Morphology and Function With CT and MRI

Saremi

Hassani

Millan-Nunez

et al. 2015

American Journal of Roentgenology

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The TV plays an important role in a number of pathologic states, and its abnormality can directly or indirectly influence morbidity and mortality in different cardiac disorders. However, the importance of the role of the TV has been overlooked primarily because TV malfunction may remain less symptomatic for a long time. Along with rapid development in imaging technology, improvement in postoperative management, and better understanding of the pathophysiologic mechanisms of TV dysfunction, more attention is being given to careful imaging analysis of this "forgotten valve."

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Section: Saremi Et Almentioning

confidence: 99%

Section: Imaging Evaluation Of Tricuspid Valvementioning

confidence: 99%

See 1 more Smart Citation

Imaging Evaluation of Tricuspid Valve: Analysis of Morphology and Function With CT and MRI

Saremi

Hassani

Millan-Nunez

et al. 2015

American Journal of Roentgenology

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“…& Quantification of MR: Current 2D echocardiographic methods of MR quantification are based on complete visualization of the major components of the regurgitant jet: the proximal flow convergence area, the vena contracta, and the area of distal jet expansion in the LA [14].…”

Section: Transthoracic Echocardiographymentioning

confidence: 99%

Assessment of Mitral Valve Disease: A Review of Imaging Modalities

Motiwala

Delling

2015

Curr Treat Options Cardio Med

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Mitral valve disease (MVD) related to mitral valve prolapse (MVP), coronary artery disease (CAD), and calcific mitral stenosis, is increasing in prevalence across the USA and Europe in the context of a longer life expectancy and aging population. In developing countries, rheumatic heart disease remains a major cause of MVD. Echocardiography represents the primary diagnostic modality for assessment of the mitral valve (MV). With the implementation of three-dimensional imaging, echocardiography has become an indispensable tool to evaluate the morphology, geometry, and function of the MV apparatus in the pre-operative setting. However, recognition of its limitations and advances in newer technologies have led to a growing interest in other imaging modalities such as cardiac magnetic resonance (CMR). Although still not widely available, CMR is an essential complement to echocardiography, especially when poor image quality, significant variability in flow diameter measurements, and geometric assumptions of flow orifice preclude accurate quantification of mitral regurgitation on echocardiographic images. In addition, CMR can reliably provide quantitative determination of ventricular volumes and function, hence facilitating surgical decision-making when serial linear echocardiographic measurements are discrepant. Finally, CMR assessment of fibrosis using late gadolinium enhancement allows better understanding of the interactions between MVD and the myocardium in both MVP and MVD related to CAD or other myopathy. In this review, we summarize the role of the available imaging modalities in understanding valvular pathology and determining severity of regurgitation or stenosis. Recently published valvular guidelines highlight the importance of monitoring MVD progression and the shift to intervention earlier in the course of disease. In this context, we also discuss the potential role of echocardiography and CMR in identifying early stages of MVD and/or pre-clinical markers of myocardial dysfunction.

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“…Due to the new medical technologies, radiology and cardiology have made the fantastic progress in the last few decades [7,8,10,21,26,36,60,66,70,[72][73][74]. These techniques, such as colour echocardiography, invasive coronary angiography, computed tomography (CT) or angiography (CTA), multislice CT (MSCT), magnetic resonance imaging (MRI) or angiography (MRA), diffusion-tensor MRI (DT-MRI), positron emission tomography (PET), and single-photon emission tomography (SPECT), enabled accurate and precise diagnostics.…”

Section: Radiologic Artmentioning

confidence: 99%