الفهرس 
Aim of the workOnly 14 pages are availabe for public view
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Abstract
Global left ventricular systolic function assessment is one of the major goals of an echocardiographic examination. Many echocardiographic indices have been proposed to assess function. The list keeps getting longer due to technologic developments. These indices are obtained from the time-motion (TM), bidimensional (2D), spectral wave Doppler, tissue Doppler, and, finally, speckle tracking methods. A multimodal approach proves to be increasingly necessary to take into account the complexity of the ventricular geometry during systole and the influence of preload and afterload and to detect preclinical systolic dysfunctions.(102) Depending on these facts study we aim to use systolic aortic root motion (M mode)and aortic root motion angle as novel indices of global left ventricular systolic function . Aortic root acts as a bridging structure not only anatomically, separating the myocardial and arterial components of the left ventricular pathway, but also functionally, since its proximal and distal components can withstand considerable changes in ventricular and arterial pressures. It is subjected to the same pressures and stresses of the left ventricle and behave in a manner similar to the ventricular myocardium.(103)
To verify this aim, one hundred patients above and below age of sixty and with echocardiographic evidence of preserved and impaired left ventricular systolic function were examined at Menoufia University from April 2018 to April 2019 . Patients with significant valvular diseases, aortic aneurysm and aortic dissection, previous thoracic surgery, cardiac tamponade, and congenital anomalies of the big vessels were excluded from the study.