Time-Intensity Curve Parameters in Rectal Cancer Measured Using Endorectal Ultrasonography with Sterile Coupling Gels Filling the Rectum: Correlations with Tumor Angiogenesis and Clinicopathological Features

Table 1

Correlations of CEUS time-intensity curve parameters with MVD.

CEUS parameters	MVD Count
	Correlation coefficient	𝑃
Arrival time, s	−0.167	0.179
Time to peak enhancement, s	−0.068	0.586
Wash-in time, s	0.025	0.840
Enhanced intensity, dB	0.295	0.016
Ascending slope	0.071	0.570

CEUS: contrast enhanced ultrasound.
MVD: microvascular density.
Statistical method: bivariate Pearson correlation analysis.