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      Magnetic resonance imaging of abnormal ventricular septal motion in heart diseases: a pictorial review

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          Abstract

          The purpose of this article is to illustrate the usefulness of MR imaging in the clinical evaluation of congenital and acquired cardiac diseases characterised by ventricular septal wall motion abnormality. Recognition of the features of abnormal ventricular septal motion in MR images is important to evaluate the haemodynamic status in patients with congenital and acquired heart diseases in routine clinical practice.

          Electronic supplementary material

          The online version of this article (doi:10.1007/s13244-011-0093-4) contains supplementary material, which is available to authorized users.

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          Most cited references22

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          Ebstein's anomaly.

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            Functional abnormalities in isolated left bundle branch block. The effect of interventricular asynchrony.

            Eighteen patients with isolated left bundle branch block (LBBB) were compared with 10 normal control subjects. Apexcardiograms, phonocardiograms, electrocardiograms, two-dimensional and dual M-mode echocardiograms, and radionuclide ventriculograms (RNV) were performed. There were no differences in the timing of right ventricular events between LBBB and normal subjects; however, striking delays in left ventricular systolic and diastolic events were apparent in the LBBB group. The delay was associated with shortening of left ventricular diastole and resultant increase in the ratio of right to left ventricular diastolic time in LBBB (1.2 +/- 0.08) compared with normal (1.0 +/- 0.06), p less than 0.0001. First heart sound (S1) amplitude, expressed as the ratio S1/S2, was decreased in LBBB compared with normal (0.67 +/- 0.2 compared with 1.34 +/- 0.25, p less than 0.01), in part due to wide separation of the valvular contributors to S1. The abnormal interventricular septal motion in LBBB corresponded to periods of asynchrony in contraction, ejection, end systole, and end diastole between right and left ventricles. Radionuclide ventriculograms revealed decreased regional ejection fraction of the septum in LBBB (40 +/- 16%) compared with 67 +/- 7% in normal subjects (p less than 0.001), while the apical and lateral regional ejection fractions were similar in the two groups. This loss of septal contribution resulted in a reduction in global ejection fraction in LBBB compared to normals (54 +/- 7% compared with 62 +/- 5%, p less than 0.005).(ABSTRACT TRUNCATED AT 250 WORDS)
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              The right ventricle in congenital heart disease.

              In patients with congenital heart disease the right ventricle (RV) may support the pulmonary (subpulmonary RV) or the systemic circulation (systemic RV). During the last 50 years evidence is accumulating that RV dysfunction develops in many of these patients and leads to considerable morbidity and mortality. Therefore RV function in certain groups of congenital heart disease patients needs close surveillance and timely and appropriate intervention to optimise outcomes. Despite major progress being made, assessing the RV either in the subpulmonary or the systemic circulation remains challenging, often requiring a multi-imaging approach and expertise (echocardiography, magnetic resonance imaging, nuclear and occasionally invasive assessment with angiography). This review discusses the implications of volume and pressure loading of the RV in the context of congenital heart disease and describes the most relevant imaging modalities for monitoring RV function.
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                Author and article information

                Contributors
                cristinamendezdiaz@hotmail.com
                rafaelasoler@telefonica.net
                +34-81-178260 , +34-81-178271 , esther.rodriguez@mundo-r.com
                marisol.lopez.rodriguez@sergas.es
                lucia.alvarez.devesa@sergas.es
                noela.fernandez.guillan@sergas.es
                lorenzo.monserrat.iglesias@sergas.es
                Journal
                Insights Imaging
                Insights Imaging
                Insights into Imaging
                Springer-Verlag (Berlin/Heidelberg )
                1869-4101
                17 April 2011
                17 April 2011
                August 2011
                : 2
                : 4
                : 483-492
                Affiliations
                [1 ]Department of Radiology, Complejo Hospitalario Universitario A Coruña (CHUAC), Xubias de Arriba 84, 15006 A Coruña, Spain
                [2 ]Department of Cardiology, Complejo Hospitalario Universitario A Coruña (CHUAC), Xubias de Arriba 84, A Coruña, 15006 Spain
                Article
                93
                10.1007/s13244-011-0093-4
                3259355
                22347969
                a9c9c59a-6b32-480a-8daa-904481413131
                © European Society of Radiology 2011
                History
                : 25 September 2010
                : 4 January 2011
                : 4 April 2011
                Categories
                Pictorial Review
                Custom metadata
                © European Society of Radiology 2011

                Radiology & Imaging
                heart function,magnetic resonance imaging,ventricular septum,heart diseases

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