الفهرس 
The pulmonary venous componentOnly 14 pages are availabe for public view
 |  | from | 222 |  |  |
| | | from | 222 | | |
Abstract
the study with future direction 1-The sample size was small as large number of patients were excluded because of AFIB Also, the present study is not a population based study and hence subject to several biases inherent in such studies. For example, symptomatic lesions are more likely to be represented in a study based in a tertiary referral center. 2- This study was limited to determine the normal range or to define a normal LA myocardial function because of the small number of healthy adult analyzed. However this was conducted in many studies before. 3-We could not correlate echo-based LA volumes and pressures with those obtained invasively. 4-We have not assessed pulmonary venous inflow, which could potentially provide more information on LA function, due to difficulty in obtaining good pulmonary vein traces in our population using transthoracic echocardiography. 5-Like other Doppler modalities, DTI-derived strain measurements are angle dependent. And the need to manually track the LA wall and reposition the region of interest on each wall frame by frame makes using this method in a clinical setting prohibitively time-consuming. 6-Some considerations should be taken into account when analyzing the myocardial function of the LA by strain and strain rate as it is still vendor –dependant .