Multi-slice spiral computed tomography in differential diagnosis of gastric stromal tumors and benign gastric polyps, and gastric stromal tumor risk stratification assessment

Table 3 Comparison of computed tomography signs and parameters between gastric stromal tumor group and control group, n (%)

CT signs	GST group (n = 64)	Control group (n = 60)	χ2 value	P value
Lesion location			4.174	0.383
Fundus of stomach	12 (18.75)	14 (23.33)
Cardia	6 (9.38)	8 (13.33)
Greater curvature of the stomach	26 (40.63)	17 (28.33)
Lesser curvature of stomach	11 (17.19)	7 (11.67)
Gastric antrum	9 (14.06)	14 (23.33)
Tumor shape			3.228	0.072
Smooth	50 (78.13)	54 (90.00)
Lobulated	14 (21.88)	6 (10.00)
Growth pattern			41.177	0.000
Intraluminal	22 (34.38)	54 (90.00)
Extraluminal	32 (50.00)	6 (10.00)
Mixed way	10 (15.63)	0 (0.00)
Calcification			1.166	0.280
Yes	5 (7.81)	2 (3.33)
No	59 (92.19)	58 (96.67)
Lesion border			31.312	0.000
Clear	11 (17.19)	40 (66.67)
Blurry	53 (82.81)	20 (33.33)
Reinforcement			3.725	0.054
Uniform	54 (84.38)	57 (95.00)
Uneven	10 (15.63)	3 (5.00)
Ulcer			9.771	0.002
Yes	18 (28.13)	4 (6.67)
No	46 (71.88)	56 (93.33)

GST: Gastric stromal tumor; CT: Computed tomography.