Effect of spectral CT on tumor microvascular angiogenesis in renal cell carcinoma

BMC Cancer

Table 5 Multiple linear regression results evaluating the correlation of microvessel parameters and WCD

Microvessel Parameters	WCD₁		NWCD₁		WCD₂		NWCD₂		WCD₃		NWCD₃
Microvessel Parameters	r	P value	r	P value	r	P value	r	P value	r	P value	r	P value
MVD	0.533	0.002*	0.197	0.281	0.509	0.003*	0.366	0.040*	0.333	0.063	0.184	0.313
MVA	0.445	0.011*	0.091	0.619	0.576	0.001*	0.401	0.023*	0.491	0.004*	0.413	0.019*
Specific microvascular	0.216	0.234	0.233	0.200	0.216	0.234	0.441	0.012	0.266	0.142	0.202	0.266
Microvascular grading	0.220	0.225	−0.027	0.883	0.268	0.138	0.520	0.002*	0.397	0.025*	0.476	0.006*
Vessel diameter	0.273	0.130	0.249	0.169	0.326	0.069	0.432	0.013	0.243	0.180	0.271	0.134
Tumor diameter	−0.268	0.138	− 0.158	0.386	−0.159	0.383	0.177	0.332	0.095	0.606	0.388	0.028*
Vessel diameter/ Tumor diameter	0.301	0.094	0.309	0.085	0.255	0.159	0.126	0.490	0.052	0.779	−0.067	0.714

*means that P<0.05, with statistical significance. (N)WCD₁ The difference of (N) WC between renal cortical phase and parenchymal phase. (N)WCD₂ The difference of (N) WC between renal parenchymal phase and excretory phase. (N)WCD₃ The difference of (N) WC between renal cortical phase and excretory phase. Several of the (N) WCDs showed moderate correlation with MVD, MVA and microvascular grading

ISSN: 1471-2407