Endoscopic ultrasound in early gastric cancer: Diagnostic accuracy and Tis/T1a lesion over staging risks

doi:10.3748/wjg.v32.i7.116463

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World Journal of Gastroenterology

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1007-9327

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

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World J Gastroenterol. Feb 21, 2026; 32(7): 116463
Published online Feb 21, 2026. doi: 10.3748/wjg.v32.i7.116463

Table 2 Diagnostic value of endoscopic ultrasonography for T staging early gastric cancer

EUS diagnosis	Histology diagnosis		Total
EUS diagnosis	Tis/T1a	T1b	Total
Tis/T1a	33	6	39
T1b or deeper	47	123	170
Total	80	129	209

Tis/T1a sensitivity = 33/(33 + 47) × 100% = 41.25%. Tis/T1a specificity = 123/(6 + 123) × 100% = 95.35%. Tis/T1a positive predictive value = 33/(33 + 6) × 100% = 84.62%. Tis/T1a negative predictive value = 123/(47 + 123) × 100% = 72.35%. Overall accuracy = (33 + 123)/(33 + 6 + 47 + 123) × 100% = 74.64%. EUS: Endoscopic ultrasound.

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Citation: Qiao XY, Li ZH, Lin SY, Wen G. Endoscopic ultrasound in early gastric cancer: Diagnostic accuracy and Tis/T1a lesion over staging risks. World J Gastroenterol 2026; 32(7): 116463
URL: https://www.wjgnet.com/1007-9327/full/v32/i7/116463.htm
DOI: https://dx.doi.org/10.3748/wjg.v32.i7.116463

Qiao XY, Li ZH, Lin SY, Wen G. Endoscopic ultrasound in early gastric cancer: Diagnostic accuracy and Tis/T1a lesion over staging risks. World J Gastroenterol 2026; 32(7): 116463 [PMID: 41694493 DOI: 10.3748/wjg.v32.i7.116463]

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