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

BMC Cancer

Table 6 Multiple linear regression results evaluating the correlation of microvessel parameters and ICD

Microvessel Parameters	ICD₁		NICD₁		DICD₂		NICD₂		ICD₃		NICD₃
Microvessel Parameters	r	P value	r	P value	r	P value	r	P value	r	P value	r	P value
MVD	0.473	0.006*	0.172	0.347	0.408	0.020	0.111	0.546	0.060	0.746	0.067	0.714
MVA	0.398	0.024	0.017	0.925	0.540	0.001	0.225	0.215	0.427	0.015	0.243	0.180
Specific microvascular	0.225	0.215	0.317	0.077	0.153	0.403	0.199	0.274	−0.019	0.919	0.094	0.609
Microvascular grading	0.217	0.233	0.187	0.305	0.234	0.197	0.397	0.024*	0.190	0.298	0.383	0.030*
Vessel diameter	0.211	0.246	0.162	0.375	0.227	0.212	−0.035	0.849	0.025	0.890	−0.084	0.648
Tumor diameter	−0.210	0.248	0.068	0.710	−0.149	0.415	−0.052	0.777	−0.077	0.675	−0.034	0.853
Vessel diameter/ Tumor diameter	0.300	0.096	0.077	0.677	0.256	0.157	−0.122	0.505	−0.005	0.976	−0.178	0.330

*means that P<0.05, with statistical significance. (N)ICD₁ The difference of (N) IC between renal cortical phase and parenchymal phase. (N)ICD₂ The difference of (N) IC between renal parenchymal phase and excretory phase. (N)ICD₃ The difference of (N) IC between renal cortical phase and excretory phase. ICD₁ showed moderate correlation with MVD. NICD2 and NICD3 showed weak correlation with microvascular grading

ISSN: 1471-2407