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pubmed:abstractText |
The possibility of evaluating left ventricular function from lateral laevo-cardiogram has been investigated. A planimetric comparison of the end-diastolic and end-systolic areas of a normal left ventricle shows a 50 to 60% reduction of the systolic area, compared with the diastolic value. Assuming concentric contraction of the left ventricle, the systolic/diastolic reduction in area is proportional to the ejection fraction. This provides a measure for the quantitative evaluation of myocardial function.
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