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British Medical Bulletin 45:1061-1075 (1989)
© 1989 The British Council

research-article

Assessment of left ventricular structure and function by cross sectional echocardiography

D G Gibson

Brompton Hospital London, UK

Abstract

Cross sectional echocardiography can be used to give semiquantitative estimates of ventricular volumes and ejection fraction which are very valuable in detecting the severe abnormalitites seen clinicaly. The technique has also been widely used to study regional abnormalities of wall motion. However, with a frame rate of 30 s–1 and lateral resolution of 3–4 mm critical analysis of disturbances of timing is not possible, so the method should be used in conjunction with M-model and Doppler techniques. In spite of physical limitations, based on the underlying mechanisms of image generation, its advantages of real time application and noninvasive nature, its ability to dimonstrate myocardial thickness as well as echo intensity, and its relative cheapness have made cross sectional echocardiography a major tool in documenting abnormalities of left ventricular function occurring in disease.


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