Texture and color enhancement imaging improves the visibility of gastric neoplasms: clinical trial with image catalogue assessment using conventional and newly developed endoscopes

Table 2 Visibility scale difference between WLI and TXI-mode 1 and between WLI and TXI-mode 2 and results of two-way ANOVA in endoscopists and the six endoscopic features of gastric neoplasms

	Scale score difference (TXI mode1-WLI), mean ± SD	p value	Scale score difference (TXI mode2-WLI), mean ± SD	p value
	Scale score difference (TXI mode1-WLI), mean ± SD	TXI mode1	Scale score difference (TXI mode2-WLI), mean ± SD	TXI mode2
H. pylori infection		0.618		0.382
Positive	0.34 ± 0.79		0.28 ± 0.79
Eradicated	0.53 ± 0.94		0.44 ± 0.83
Negative	0.38 ± 0.81		0.24 ± 0.72
Atrophy		0.07		0.175
Positive	0.45 ± 0.87		0.36 ± 0.81
Open type	0.44 ± 0.86		0.34 ± 0.81
Closed type	0.50 ± 0.93		0.48 ± 0.79
Negative	0.22 ± 0.79		0.06 ± 0.40
Location		0.915		0.337
U	0.17 ± 0.69		0.08 ± 0.89
M	0.38 ± 1.00		0.35 ± 0.78
L	0.51 ± 0.81		0.39 0.78
Size		0.372		0.14
<10 mm	0.50 ± 0.89		0.48 ± 0.84
>10 mm	0.40 ± 0.85		0.26 ± 0.76
Morphology		0.924		0.954
0-I	0.28 ± 0.45		0.1 ± 0.31
0-IIa	0.55 ± 0.94		0.40 ± 0.82
0-IIc	0.41 ± 0.86		0.34 ± 0.81
Pathology diagnosis		0.762		0.931
Diffuse type	0.21 ± 0.71		0.17 ± 0.48
Intestinal type	0.47 ± 0.89		0.38 ± 0.85
Adenoma	0.58 ± 0.64		0.25 ± 0.43
Intestinal metaplasia		0.682		0.966
Complete	0.30 ± 0.89		0.43 ± 0.82
Incomplete	0.51 ± 0.88		0.34 ± 0.83
Negative	0.56 ± 0.81		0.29 ± 0.82

The visibility scale scores of newly developed endoscope are used for the analysis. Significance is calculated as < 0.0083 according to Bonferroni adjustment. There is no factor which affected the improvement of visibility of gastric neoplasms in TXI-1 and TXI-2.
U, upper third; M, middle third; L, lower third.

ISSN: 1471-230X