Detection of Hypokinesis by a Quantitative Analysis of Left Ventricular Cineangiograms
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TLDR
The use of a quantitative method appears to be essential to the proper interpretation of left ventricular wall motion and particularly to the detection of hypokinetic segments.Abstract:
A method for detecting left ventricular hypokinesis is proposed. It involves superimposition of left ventricular silhouettes traced from 30 degree right anterior oblique cineangiograms, correcting for thoracic cage motion, descent of the aortic valve and rotation of the apex. Normal values for the percent of systolic motion of seven endocardial segments have been established from measurements in 20 patients, permitting a statistical definition of hypokinesis. The use of this quantitative method has been compared with visual inspection of ventriculograms (qualitative method), resulting in differences in definition of hypokinetic segments by the two methods in 13 of 16 patients with coronary heart disease. When the quantitative method was used, only one hypokinetic segment was found which did not correspond to an obstructive coronary lesion while six such segments were defined using the qualitative method. In four patients segments thought to be hypokinetic (qualitative method) appeared to be akinetic (quan...read more
Citations
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References
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Journal ArticleDOI
The use of single plane angiocardiograms for the calculation of left ventricular volume in man.
Harold Sandler,Harold T. Dodge +1 more
TL;DR: Volumes calculated from measurements made only on A-P films closely agreed with biplane calculations of volume and the use of single plane techniques did not result in significant errors for the calculation of absolute end-systolic volume or for calculation of stroke volume.
Journal ArticleDOI
Left ventricular volume and mass from single-plane cineangiocardiogram. A comparison of anteroposterior and right anterior oblique methods.
J. Ward Kennedy,J. Ward Kennedy,Stuart E. Trenholme,Stuart E. Trenholme,Irwin S. Kasser,Irwin S. Kasser +5 more
Journal ArticleDOI
Localized disorders in myocardial contraction. Asynergy and its role in congestive heart failure.
TL;DR: The pattern of left ventricular contraction is described as a "series of sequential fractionate contractions of muscle bundles" and the possibility that unco-ordinated contraction of the heart results from a combination of normal and abnormal muscle has received little attention.
Journal ArticleDOI
Implications of left ventricular asynergy
Michael V. Herman,Richard Gorlin +1 more
TL;DR: Ventricular asynergy represents a dynamic abnormality appreciated only in life as a derangement of the integrated function of the left ventricle and represents an important cause of cardiac failure.
Journal ArticleDOI
Influence of direct myocardial revascularization on left ventricular asynergy and function in patients with coronary heart disease. With and without previous myocardial infarction.
Kanu Chatterjee,H.J.C. Swan,William W. Parmley,Hector Sustaita,Harold S. Marcus,Jack M. Matloff +5 more
TL;DR: It is indicated that significant improvement in ventricular wall motion and pump function occurs in patients with obstructive coronary disease following successful aortocoronary artery bypass surgery even in the presence of old myocardial infarction.
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