使用水平集方法在二维超声心动图图像序列中测量左心室容积，以自动检测舒张末期和收缩末期帧。

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

作者信息

Darvishi Saeed, Behnam Hamid, Pouladian Majid, Samiei Niloufar

机构信息

Faculty of Biomedical Engineering, Department of Biomedical Engineering, Science and Research Branch, Islamic Azad University, Tehran, IR Iran.

Department of the Electronic Engineering, Iran University of Science and Technology, Tehran, IR Iran.

出版信息

Res Cardiovasc Med. 2013 Feb;2(1):39-45. doi: 10.5812/cardiovascmed.6397. Epub 2013 Feb 24.

BACKGROUND

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.

OBJECTIVES

The current study aimed to develop a new method based on measuring volume changes in Left Ventricle (LV) during cardiac cycle.

MATERIAL AND METHODS

For this purpose, the Level Set method was used both in detecting endocardium border and quantifying cardiac function of all frames.

RESULTS

Demonstrating LV volumes displays ED and ES frames and the volumes used in calculating the required parameters.

CONCLUSIONS

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.