Table 3.

Advantages of 3D echocardiography over 2D echocardiography

	2D	3D
Calculation of the defect area	-	+
En face view of the defect	-	+
Measurement of the defect area	+	+
Diastolic – systolic area difference	-	+
Rim calculation	+/-	-
Visualization of shape of defect	-	+