Comparison of colorectal adenomas detected by LCI and NBI

doi:10.3877/cma.j.issn.2095-7157.2024.01.004

Abstract

Abstract:

Objective

To compare the adenoma detection rate (ADR) between linkage color imaging (LCI) and narrow-band light (NBI).

Methods

From November 1, 2021 to October 30, 2022, 1050 patients who were to undergo painless colonoscopy in the First Central Hospital of Baoding were enrolled. According to the random number table, the subjects were randomly divided into three groups, 350 patients in each group, and different image enhancement modes (IEE) were used during withdrawl endoscopy. The white light group was used as control group to compare ADR, adenoma detection location, size and diagnostic accuracy of each group.

Results

348 patients in the final white light group, 346 patients in the LCI group and 347 patients in the NBI group. ADR in LCI group and NBI group were higher than those in white light group, and ADR in LCI group was significantly higher than that in NBI group, the differences were statistically significant (P<0.05). The ADR of right colon in LCI group was higher than that in NBI group, the difference was statistically significant (P<0.05). There was no significant difference in polyp size between LCI group and NBI group. The diagnostic accuracy of LCI group and NBI group was higher than that of white light group, and NBI group was significantly higher than LCI group (95.3% vs. 88.3%, P<0.05).

Key words: Image enhanced endoscopy, Colonoscopy, Adenomatous polyps

Xiaohuan Yu, Lu Lu, Lu Liu, Yichao Yang, Zhenfeng Zhao, Ge Ye, Ying Xiong. Comparison of colorectal adenomas detected by LCI and NBI[J]. Chinese Journal of Gastrointestinal Endoscopy(Electronic Edition), 2024, 11(01): 13-17.

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References 20

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分组	年龄(岁)	性别男[n(%)]	体重指数(kg/m²)	便秘人数[n(%)]	BBPS
白光组(n＝348)	59.47±8.463	171(49.1)	25.005(23.043～27.015)	118(34.0)	6(6～7)
LCI组(n＝346)	59.77±8.629	170(49.1)	24.855(23.050～27.040)	116(33.5)	6(6～7)
NBI组(n＝347)	59.50±8.463	166(47.8)	25.030(23.050～27.040)	114(32.9)	6(6～7)
统计值	0.132	0.156	0.063	0.089	1.490
P值	0.877	0.925	0.969	0.956	0.457

分组	年龄(岁)	性别男[n(%)]	体重指数(kg/m²)	便秘人数[n(%)]	BBPS
白光组(n＝348)	59.47±8.463	171(49.1)	25.005(23.043～27.015)	118(34.0)	6(6～7)
LCI组(n＝346)	59.77±8.629	170(49.1)	24.855(23.050～27.040)	116(33.5)	6(6～7)
NBI组(n＝347)	59.50±8.463	166(47.8)	25.030(23.050～27.040)	114(32.9)	6(6～7)
统计值	0.132	0.156	0.063	0.089	1.490
P值	0.877	0.925	0.969	0.956	0.457

观察指标	白光组(n＝348)	LCI组(n＝346)	NBI组(n＝347)	χ²值	P值
ADR	108(31.0)	139(40.1)^a	112(32.2)	4.677	0.031
位置
右侧结肠	37(10.6)	57(16.5)^a	35(10.1)	6.140	0.013
横结肠	26(7.5)	44(12.7)^a	27(7.7)	4.590	0.032
左侧结肠	62(17.8)	82(23.7)^a	66(19.0)	2.259	0.133
诊断准确率	79.5(132/166)	88.3(228/258)^a	95.3(181/190)^b	6.538	0.011

观察指标	白光组(n＝348)	LCI组(n＝346)	NBI组(n＝347)	χ²值	P值
ADR	108(31.0)	139(40.1)^a	112(32.2)	4.677	0.031
位置
右侧结肠	37(10.6)	57(16.5)^a	35(10.1)	6.140	0.013
横结肠	26(7.5)	44(12.7)^a	27(7.7)	4.590	0.032
左侧结肠	62(17.8)	82(23.7)^a	66(19.0)	2.259	0.133
诊断准确率	79.5(132/166)	88.3(228/258)^a	95.3(181/190)^b	6.538	0.011

项目	白光组(n＝353)	LCI组(n＝443)	NBI组(n＝391)	χ²值	P值
微小息肉	246(70)	337(76.1)^a	298(76.2)^b	0.002	0.962
小息肉	72(20.3)	77(17.4)	69(17.6)	0.010	0.920
大息肉	35(9.9)	29(6.5)	24(6.1)	0.058	0.809

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