Single-level dynamic spiral CT of hepatocellular carcinoma: Correlation between imaging features and density of tumor microvessels

Table 1 HCC time-density curve patterns

Curve parameters	Type I	Type II	Type III
Number of patients	7	13	6
PV (Hu)	53.6 ± 7.8	47.9 ± 12.6	20.6 ± 7.2a
PT (Sec)	43.8 ± 9.5	52.2 ± 7.7	57.9 ± 8.3
CER (%)	25.0 ± 7.2	22.5 ± 6.5	8.2 ± 3.4a

^aThe differences of PV and CER between type III and those of type I and II were statistically significant (P < 0.05).

Table 2 HCC time-density curve patterns, types of gross en-hancement morphology and tumor MVD

	Type I	Type II	Type III	Type A	Type B	Type C
Patient No	7	13	6	7	5	14
MVD	41.8 ± 16.7	48.0 ± 18.2	23.0 ± 7.4a	49.7 ± 14.2	15.6 ± 5.7b	44.0 ± 19.7

^aThe differences of MVDs between type III and type I, type II were statistically significant (P < 0.05).

^bThe differences of MVDs between types B, A, C were statistically significant (P < 0.05).

Table 3 HCC time-density curve patterns, types of gross en-hancement morphology and intratumoral MVD distribution

	Type I	Type II	Type III	Type A	Type B	Type C
Rich S	0	10	2	4	2	6
Rich S & I MVD	7	3	1	3	0	8
Scanty S & I MVD	0	0	3	0	3	0

S-tumor blood sinusoids, I-tumor interstitium.