Detection rate of main duodenal papilla by detachable string magnetically controlled capsule endoscopy and its morphological observation to predict the risk of selective biliary cannulation

doi:10.3877/cma.j.issn.2095-7157.2026.01.004

Abstract

Abstract:

Objective

To investigate the detection rate of the duodenal papilla using detachable string magnetically controlled capsule endoscopy technology, and to predict the risk of bile duct intubation during endoscopic retrograde cholangiopancreatography (ERCP) by observing the morphology of the duodenal papilla.

Methods

A retrospective analysis was conducted on the detection rate of duodenal papilla in 20 patients who underwent ERCP with complete ds-MCE examination before surgery and were admitted to the Fifth Affiliated Hospital of Zunyi Medical University(Zhuhai)from January 2022 to October 2022. Analyze the detection rate of duodenal papilla by this examination and observe its papilla morphology to predict the risk of selective biliary catheterization.

Results

The detection rate of ds-MCE duodenal papilla was 70% (14/20); 11 cases of Type I and 3 cases of Type IV morphology; All patients underwent ERCP, with good selective intubation and an average time of 2.93 minutes.No postoperative pancreatitis or hyperamylasemia occurred.

Conclusion

ds-MCE can improve the detection rate of duodenal papilla and further observe papilla morphology to predict the risk of bile duct catheterization during ERCP.

Key words: Detachable string magnetically controlled capsule endoscopy (ds-MCE), Duodenal nipple, Endoscopic retrograde cholangiopancreatography(ERCP), Selective biliary cannulation(SBC), Risk

Yang Yang, Haoxin Zhang, Lulin Deng, Zhaohui He. Detection rate of main duodenal papilla by detachable string magnetically controlled capsule endoscopy and its morphological observation to predict the risk of selective biliary cannulation[J]. Chinese Journal of Gastrointestinal Endoscopy(Electronic Edition), 2026, 13(01): 13-17.

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URL: https://zhwcnjdzzz.cma-cmc.com.cn/EN/10.3877/cma.j.issn.2095-7157.2026.01.004

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References 27

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序号	性别	年龄(岁)	乳头检出(是/否)	乳头形态	选择性胆管插管时间(min)
1	男	61	是	Ⅳ	2
2	男	54	否		－
3	男	43	是	Ⅰ	3
4	女	59	否	Ⅱ	30
5	男	76	否		－
6	女	66	否		25
7	女	21	是	Ⅰ	3
8	女	29	否		3
9	女	52	是	Ⅰ	3
10	男	52	否		3
11	女	28	是	Ⅳ	4
12	男	47	是	Ⅰ	2
13	女	79	是	Ⅰ	3
14	女	54	是	Ⅰ	2.5
15	女	80	是	Ⅰ	3
16	女	42	是	Ⅰ	3
17	男	46	是	Ⅰ	2
18	男	57	是	Ⅳ	5
19	男	66	是	Ⅰ	2.5
20	男	60	是	Ⅰ	3
N(20)	平均年龄(53.6)	检出率(70%)

序号	性别	年龄(岁)	乳头检出(是/否)	乳头形态	选择性胆管插管时间(min)
1	男	61	是	Ⅳ	2
2	男	54	否		－
3	男	43	是	Ⅰ	3
4	女	59	否	Ⅱ	30
5	男	76	否		－
6	女	66	否		25
7	女	21	是	Ⅰ	3
8	女	29	否		3
9	女	52	是	Ⅰ	3
10	男	52	否		3
11	女	28	是	Ⅳ	4
12	男	47	是	Ⅰ	2
13	女	79	是	Ⅰ	3
14	女	54	是	Ⅰ	2.5
15	女	80	是	Ⅰ	3
16	女	42	是	Ⅰ	3
17	男	46	是	Ⅰ	2
18	男	57	是	Ⅳ	5
19	男	66	是	Ⅰ	2.5
20	男	60	是	Ⅰ	3
N(20)	平均年龄(53.6)	检出率(70%)

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