Low-dose spectral insufflation computed tomography protocol preoperatively optimized for T stage esophageal cancer - preliminary research experience

Table 4 Comparison of pathological T stage and combined diagnosis of the triangular area in front of the vertebral body

Group	T stage	Medullary type		Ulcerative type		Mushroom type		Total
		T3	T4	T3	T4	T3	T4
A	T3	6	1	3	0	3	0	13
	T4	4	5	1	0	0	0	10
Total		10	6	4	0	3	0	23
B	T3	8	1	5	0	3	0	17
	T4	2	6	0	0	0	0	8
Total		10	7	5	0	3	0	25
C	T3	6	2	5	0	2	0	15
	T4	3	11	0	0	0	0	14
Total		9	13	5	0	2	0	29