Correlation study between flash dual source CT perfusion imaging and regional lymph node metastasis of non-small cell lung cancer

Table 2 Difference of parameters between group A and group B

Parameters	Group A	Group B	Z	P
BF (ml/100 ml/min)	66.13 ± 30.15	115.57 ± 80.21	−2.710	0.006
BV (ml/100 ml)	8.58 ± 4.31	9.21 ± 3.54	−0.728	0.467
MTT(s)	15.85 ± 15.92	6.10 ± 2.57	−2.667	0.011
PMB (ml/100 ml/min)	21.18 ± 29.87	20.59 ± 7.91	−1.959	0.048
MVD (strip/field)	67.21 ± 46.69	70.85 ± 50.14	−0.447	0.637
LVN (strip/field)	6.70 ± 3.10	8.31 ± 3.87	−1.268	0.218
LVA (μm²/field)	4617.65 ± 1435.67	6541.37 ± 3235.76	−2.310	0.027
LVP (μm/field)	718.71 ± 216.75	942.09 ± 418.39	−1.951	0.052

Abbreviations: BF blood flow, BV blood volume, LVA luminal vascular area, LVN luminal vascular number, LVP luminal vascular perimeter, MTT mean transit time, MVD microvessel density, PMB permeability

ISSN: 1471-2407