Energy spectrum computed tomography multi-parameter imaging in preoperative assessment of vascular and neuroinvasive status in gastric cancer

Table 1 Comparison of pathological data between two groups of gastric cancer patients

Project	LVI/PNI positive group (n = 42)	LVI/PNI negative group (n = 20)	χ2	P value
Position			2.71	0.438
Cardia	9	7
Gastric fundus	2	2
Gastric body	13	6
Gastric antrum	18	5
Differentiation			5.08	0.079
High	2	3
Middle	9	8
Low	31	9
Lauren typing			2.44	0.296
Diffuse	21	6
Intestinal	12	9
Mixed type	9	5
Lymph node metastasis			37.58	< 0.001
Yes	39	3
No	3	17

LVI: Vascular invasion; PNI: Nerve invasion.