Clinical utility of left atrial strain in predicting atrial fibrillation recurrence after catheter ablation: An up-to-date review

Figure 2 Atrial strain image by 3D-speckle tracking echocardiography in a healthy volunteer. 3D-speckle tracking echocardiography reconstructs the 3D structure of left atrium without the left atrial appendage, through continuous monitoring of four cardiac cycles, plots the time-volume curve of the left atrium avoiding the error caused by geometric hypothesis calculation, and calculates the parameters as the list in the upper right corner. It is difficult to meet the continuous and stable cardiac cycle in atrial fibrillation patients.