title: [Laevo-cardiography for the functional evaluation of the ventricle. I. The normal left ventricle].
abstract: 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.
mesh_terms: D000328:Adult; D000790:Angiocardiography / Q000379:methods; D001022:Aortic Valve Insufficiency / Q000000981:diagnostic imaging*; D002648:Child; D002932:Cineangiography / Q000379:methods; D002933:Cineradiography / Q000379:methods; D005260:Female; D006334:Heart Function Tests; D006352:Heart Ventricles / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000000981:diagnostic imaging*
vernacular_title: Lvokardiographische Untersuchungen zur Leistungsbeurteilung des linken Ventrikels. I. Der suffiziente linke Ventrikel