Measuring Left Ventricular Volumes in Two-Dimensional Echocardiography Image Sequence Using Level-set Method for Automatic Detection of End-Diastole and End-systole Frames

Identifying End-Diastole (ED) and End-Systole (ES) frames is highly important in the process of evaluating cardiac function and measuring global parameters accurately, such as Ejection Fraction (EF), Cardiac Output (CO) and Stroke Volume. The current study aimed to develop a new method based on measuring volume changes in Left Ventricle (LV) during cardiac cycle. For this purpose, the Level Set method was used both in detecting endocardium border and quantifying cardiac function of all frames. Demonstrating LV volumes displays ED and ES frames and the volumes used in calculating the required parameters. Since ES and ED frames exist in iso-volumic phases of the cardiac cycle with minimum and maximum values of LV volume signals, such peaks can be utilized in finding related frames.