From surface to depth: Combining white-light and ultrasound endoscopy to predict complete response in rectal cancer

doi:10.4253/wjge.122124

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World Journal of Gastrointestinal Endoscopy

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1948-5190

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

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World J Gastrointest Endosc. Aug 16, 2026; 18(8): 122124
Published online Aug 16, 2026. doi: 10.4253/wjge.122124

Table 3 Positive predictive value for a complete response of endoscopic feature and endoscopic ultrasound feature

	R1, % (n/N)	95%CI	R2, % (n/N)	95%CI
Endoscopic features
eCR	78.6 (11/14)	52.4-94.3	76.9 (10/13)	49.8-92.5
Near-eCR	45.2 (14/31)	27.8-63.4	41.4 (12/29)	24.3-59.9
Non-eCR	10.0 (10/100)	5.3-17.5	12.6 (13/103)	7.1-20.5
Endoscopic ultrasound features
Completely restored	66.7 (10/15)	42.8-90.5	85.7 (12/14)	57.2-98.2
Partially restored	35.0 (14/40)	20.2-49.8	34.0 (16/47)	20.8-49.3
Mass echo	12.2 (11/90)	5.5-19.0	8.3 (7/84)	3.4-16.4

eCR: Endoscopic complete response; near-eCR: Near-endoscopic complete response; non-eCR: Non-endoscopic complete response; CI: Confidence interval.

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Citation: Chi J, Weng J, Li WH, Bai KH, Yang R, Zhang LJ, Fan WH, Wu XJ. From surface to depth: Combining white-light and ultrasound endoscopy to predict complete response in rectal cancer. World J Gastrointest Endosc 2026; 18(8): 122124
URL: https://www.wjgnet.com/1948-5190/full/v18/i8/122124.htm
DOI: https://dx.doi.org/10.4253/wjge.122124

Chi J, Weng J, Li WH, Bai KH, Yang R, Zhang LJ, Fan WH, Wu XJ. From surface to depth: Combining white-light and ultrasound endoscopy to predict complete response in rectal cancer. World J Gastrointest Endosc 2026; 18(8): 122124 [DOI: 10.4253/wjge.122124]

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