Observer variability
Intraobserver ICC for the ASD parameters as the maximal diameter, the minimal diameter and circular index via 2D-TEE were 0.96,0.93,0.94, respectively. Intraobserver ICC for the maximal diameter, the minimal diameter, circular index and circumference values based on 3D-TEE images were 0.98, 0.92, 0.98 and 0.93, respectively. The Intraobserver ICC for the corresponding parameters measured from 3D printed models were 0.97, 0.92, 0.99 and 091, respectively. Interobserver ICC for the same parameters based on 2D-TEE were 0.93,0.90,0.98, respectively, and via 3D-TEE were 0.98, 0.94, 0.98,0.90, respectively. Interobserver ICC of the maximal diameter, the minimal diameter, circular index and circumference based on 3D printed model were 0.95,0.90,0.98 and 089, respectively.