Evaluating the use of three-dimensional reconstruction visualization technology for precise laparoscopic resection in gastroesophageal junction cancer

Table 3 Comparison of intraoperative indices between the three- and two-dimensional groups (mean ± SD)

Variables	3D group (n = 52)	2D group (n = 68)	χ2/t value	P value
Operative time (min)	157.02 ± 8.38	183.16 ± 23.87	-8.381	< 0.001
Intraoperative blood loss (mL)	83.65 ± 14.22	110.94 ± 22.05	-8.212	< 0.001
Number of lymph node dissections (n)	28.98 ± 2.82	23.56 ± 2.77	10.539	< 0.001
R0 resection rate (%)	80.77% (42/52)	61.64% (42/68)	5.068	0.024

3D: Three-dimensional; 2D: Two-dimensional.