Table 4

Intraobserver and interobserver correlation coefficient (r) and SE of estimate (SEE) of measurements of the aortic annulus diameter by different imaging modalities

Intraobserver correlationInterobserver correlation
2D TTEr=0.95 (SEE=0.61 mm)r=0.76 (SEE=1.26 mm)
2D TEEr=0.94 (SEE=0.66 mm)r=0.85 (SEE=1.02 mm)
3D TEE
 Sagittalr=0.93 (SEE=0.79 mm)r=0.79 (SEE=1.28 mm)
 Coronalr=0.93 (SEE=0.84 mm)r=0.84 (SEE=1.22 mm)
Angiography
 Sagittalr=0.58 (SEE=1.79 mm)r=0.56 (SEE=1.79 mm)
 Coronalr=0.57 (SEE=1.58 mm)r=0.61 (SEE=1.52 mm)
DSCT
 Sagittalr=0.91 (SEE=0.79 mm)r=0.81 (SEE=1.13 mm)
 Coronalr=0.95 (SEE=0.62 mm)r=0.91 (SEE=0.79 mm)
  • 2D, two-dimensional; 3D, three-dimensional; DSCT, dual-source CT; TEE, transoesophageal echocardiography; TTE, transthoracic echocardiography