Application of three-dimensional transesophageal echocardiography in preoperative evaluation of transcatheter aortic valve replacement

Table 6 Linear regression analysis of aortic root calcification and accuracy of 3D-TEE measurement (CT measurement as the golden standard)

Measurement	Sample	\|3D-TEE-CT\|	HU450			HU850
Measurement	Sample	\|3D-TEE-CT\|		R	P		R	P
PPSystole
Annulus-Da	31	1.06 (0.37, 1.61)		0.24	0.20		0.20	0.28
Annulus-Dp	31	0.87 (0.45, 1.53)		0.15	0.44		0.09	0.63
Annulus-Mean	31	1.01 (0.47, 1.30)		0.20	0.28		0.19	0.30
Diastole			431.62 (6.61, 1109.81)			95.80 (0.56, 479.92)
Annulus-Da	31	1.77 (0.97, 2.28)		0.02	0.91		0.01	0.97
Annulus-Dp	31	1.22 (0.48, 1.84)		0.05	0.80		0.02	0.92
Annulus-Mean	31	1.72 (0.92, 2.35)		0.04	0.82		0.05	0.79

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