Table 2

Measurements of aortic annulus diameter derived from sagittal and coronal cut planes using different echocardiographic modalities, angiography and dual-source CT (DSCT)

Aortic annulus diameter derived from sagittal cut plane (mm)Aortic annulus diameter derived from coronal cut plane (mm)
TTE21.91±1.87*
2D TEE22.35±2.16*
Angiography22.54±2.0723.42±2.08
3D TEE22.27±2.01*23.46±2.07§
DSCT22.19±1.96*23.60±1.89§
  • Values are mean±SD.

  • * p<0.05 versus coronal diameter derived by angiography, 3D TEE or DSCT.

  • p<0.05 versus coronal diameter derived by angiography.

  • p<0.05 versus sagittal diameter derived by angiography, TTE, 2D TEE, 3D TEE or DSCT.

  • § p<0.05 versus sagittal diameter derived by TTE, 2D TEE, 3D TEE or DSCT.

  • 2D, two-dimensional; 3D, three-dimensional; TEE, transoesophageal echocardiography; TTE, transthoracic echocardiography.