The evaluation of diastolic functions of the heart is significant in the diagnosis and treatment of heart diseases. Doppler echocardiography is the most commonly used method for this purpose. The parameters that can be detected by Doppler echocardiography and most commonly employed for evaluation are the ratio of mitral peak flow velocity in early diastole to peak flow velocity in Iate diastole (E/A ratio), deceleration time of early diastole and isovulumic relaxation time. The detection of these parameters, although having some restrictions, provide important information for the evaluation of the diastolic function of the left ventricle. In this review, in addition to echocardiographic parameters used for the evaluation of the diastolic function of the left ventricle and the factors influencing these, the new echocardiographic methods are surveyed with reference to the literature.
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