Diagnostic modalities of

Faculty Medicine Year: 22102007
Type of Publication: Theses Pages: 185
BibID 10136006
Keywords : Pediatrics    
Accurate determination of LV volume, ejection fraction and segmental wall motion abnormalities is important for clinical decision-making and follow-up assessment. Currently, echocardiography is the most common used method to obtain this information.A quantitative assessment of global systolic function is usually based on changes in ventricular size and volume. Regional wall motion analysis is fundamental in evaluating coronary artery disease. Mechanical synchrony of regional myocardial contraction has an important role in maintaining optimal systolic function, and this can be assessed with tissue Doppler and strain imaging.Diastolic abnormalities of the left ventricle result in significant morbidity and adverse outcomes. The assessment of diastolic function and left ventricular filling pressures continues to evolve. Doppler echocardiography is the most practical method for assessing filling patterns and myocardial relaxation and for estimating LV filling pressures at rest and with exertionRegional and global contractile function can be readily assessed using magnetic resonance imaging. Other techniques used for assessment of left ventricular function are reviewed like electrocardiography, positron-emitting and single photon-emitting scintigraphic imaging.Each of the previous mentioned techniques has its own advantages and limitations which have been mentioned.