Limited ability of capsule endoscopy to detect normally positioned duodenal papilla

Hwi Kong, Yong Sik Kim, Jong Jin Hyun, Young Jig Cho, Bora Keum, Yoon Tae Jeen, Hong Sik Lee, Hoon-Jai Chun, Soon-Ho Um, Sang Woo Lee, Jai Hyun Choi, Chang Duck Kim, Ho Sang Ryu, Jin Hai Hyun

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

Background: The current power of capsule endoscopy (CE) to diagnose patients with obscure GI bleeding is 42% to 74.4%. Objective: The aim of this study was to evaluate the diagnostic power of CE through its ability to detect duodenal papilla. Design and Patients: A total of 112 consecutive CEs were retrospectively reviewed. All patients had undergone esophagogastroduodenoscopy and had their normal duodenal papilla confirmed. Setting and Interventions: The CE findings were reviewed separately at a rate of 15 images/second by 2 experienced and competent capsule readers. Main Outcome Measurements: The CE detection rate of duodenal papilla was calculated. In addition, the number of frames showing duodenal papilla was counted. Results: Among the total CEs, 2 cases were excluded because the capsule could not traverse the second portion of duodenum. The most common indication was obscure GI bleeding. CE only detected duodenal papilla in 48 cases (43.6%). The mean number of frames of the visualizing duodenal papilla was 3.5 ± 2.5 (range 1-13). Limitations: Choosing duodenal papilla as the reference may not be optimal because its position is difficult to identify. Conclusions: Our study conveys an important message on the present power of CE; we should carefully review CE findings at a slower review rate to raise the detection ability of the current-powered CE, when it is passing through several "difficult to identify" locations such as second portion of the duodenum. In addition, to raise the power of CE, technologic improvements of CE, such as an extracoporeal-controllable device or a multiside viewing capsule, are needed.

Original languageEnglish
Pages (from-to)538-541
Number of pages4
JournalGastrointestinal Endoscopy
Volume64
Issue number4
DOIs
Publication statusPublished - 2006 Oct 1

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Capsule Endoscopy
Capsules
Duodenum
Hemorrhage
Digestive System Endoscopy

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Gastroenterology

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Limited ability of capsule endoscopy to detect normally positioned duodenal papilla. / Kong, Hwi; Kim, Yong Sik; Hyun, Jong Jin; Cho, Young Jig; Keum, Bora; Jeen, Yoon Tae; Lee, Hong Sik; Chun, Hoon-Jai; Um, Soon-Ho; Lee, Sang Woo; Choi, Jai Hyun; Kim, Chang Duck; Ryu, Ho Sang; Hyun, Jin Hai.

In: Gastrointestinal Endoscopy, Vol. 64, No. 4, 01.10.2006, p. 538-541.

Research output: Contribution to journalArticle

Kong, Hwi ; Kim, Yong Sik ; Hyun, Jong Jin ; Cho, Young Jig ; Keum, Bora ; Jeen, Yoon Tae ; Lee, Hong Sik ; Chun, Hoon-Jai ; Um, Soon-Ho ; Lee, Sang Woo ; Choi, Jai Hyun ; Kim, Chang Duck ; Ryu, Ho Sang ; Hyun, Jin Hai. / Limited ability of capsule endoscopy to detect normally positioned duodenal papilla. In: Gastrointestinal Endoscopy. 2006 ; Vol. 64, No. 4. pp. 538-541.
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abstract = "Background: The current power of capsule endoscopy (CE) to diagnose patients with obscure GI bleeding is 42{\%} to 74.4{\%}. Objective: The aim of this study was to evaluate the diagnostic power of CE through its ability to detect duodenal papilla. Design and Patients: A total of 112 consecutive CEs were retrospectively reviewed. All patients had undergone esophagogastroduodenoscopy and had their normal duodenal papilla confirmed. Setting and Interventions: The CE findings were reviewed separately at a rate of 15 images/second by 2 experienced and competent capsule readers. Main Outcome Measurements: The CE detection rate of duodenal papilla was calculated. In addition, the number of frames showing duodenal papilla was counted. Results: Among the total CEs, 2 cases were excluded because the capsule could not traverse the second portion of duodenum. The most common indication was obscure GI bleeding. CE only detected duodenal papilla in 48 cases (43.6{\%}). The mean number of frames of the visualizing duodenal papilla was 3.5 ± 2.5 (range 1-13). Limitations: Choosing duodenal papilla as the reference may not be optimal because its position is difficult to identify. Conclusions: Our study conveys an important message on the present power of CE; we should carefully review CE findings at a slower review rate to raise the detection ability of the current-powered CE, when it is passing through several {"}difficult to identify{"} locations such as second portion of the duodenum. In addition, to raise the power of CE, technologic improvements of CE, such as an extracoporeal-controllable device or a multiside viewing capsule, are needed.",
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T1 - Limited ability of capsule endoscopy to detect normally positioned duodenal papilla

AU - Kong, Hwi

AU - Kim, Yong Sik

AU - Hyun, Jong Jin

AU - Cho, Young Jig

AU - Keum, Bora

AU - Jeen, Yoon Tae

AU - Lee, Hong Sik

AU - Chun, Hoon-Jai

AU - Um, Soon-Ho

AU - Lee, Sang Woo

AU - Choi, Jai Hyun

AU - Kim, Chang Duck

AU - Ryu, Ho Sang

AU - Hyun, Jin Hai

PY - 2006/10/1

Y1 - 2006/10/1

N2 - Background: The current power of capsule endoscopy (CE) to diagnose patients with obscure GI bleeding is 42% to 74.4%. Objective: The aim of this study was to evaluate the diagnostic power of CE through its ability to detect duodenal papilla. Design and Patients: A total of 112 consecutive CEs were retrospectively reviewed. All patients had undergone esophagogastroduodenoscopy and had their normal duodenal papilla confirmed. Setting and Interventions: The CE findings were reviewed separately at a rate of 15 images/second by 2 experienced and competent capsule readers. Main Outcome Measurements: The CE detection rate of duodenal papilla was calculated. In addition, the number of frames showing duodenal papilla was counted. Results: Among the total CEs, 2 cases were excluded because the capsule could not traverse the second portion of duodenum. The most common indication was obscure GI bleeding. CE only detected duodenal papilla in 48 cases (43.6%). The mean number of frames of the visualizing duodenal papilla was 3.5 ± 2.5 (range 1-13). Limitations: Choosing duodenal papilla as the reference may not be optimal because its position is difficult to identify. Conclusions: Our study conveys an important message on the present power of CE; we should carefully review CE findings at a slower review rate to raise the detection ability of the current-powered CE, when it is passing through several "difficult to identify" locations such as second portion of the duodenum. In addition, to raise the power of CE, technologic improvements of CE, such as an extracoporeal-controllable device or a multiside viewing capsule, are needed.

AB - Background: The current power of capsule endoscopy (CE) to diagnose patients with obscure GI bleeding is 42% to 74.4%. Objective: The aim of this study was to evaluate the diagnostic power of CE through its ability to detect duodenal papilla. Design and Patients: A total of 112 consecutive CEs were retrospectively reviewed. All patients had undergone esophagogastroduodenoscopy and had their normal duodenal papilla confirmed. Setting and Interventions: The CE findings were reviewed separately at a rate of 15 images/second by 2 experienced and competent capsule readers. Main Outcome Measurements: The CE detection rate of duodenal papilla was calculated. In addition, the number of frames showing duodenal papilla was counted. Results: Among the total CEs, 2 cases were excluded because the capsule could not traverse the second portion of duodenum. The most common indication was obscure GI bleeding. CE only detected duodenal papilla in 48 cases (43.6%). The mean number of frames of the visualizing duodenal papilla was 3.5 ± 2.5 (range 1-13). Limitations: Choosing duodenal papilla as the reference may not be optimal because its position is difficult to identify. Conclusions: Our study conveys an important message on the present power of CE; we should carefully review CE findings at a slower review rate to raise the detection ability of the current-powered CE, when it is passing through several "difficult to identify" locations such as second portion of the duodenum. In addition, to raise the power of CE, technologic improvements of CE, such as an extracoporeal-controllable device or a multiside viewing capsule, are needed.

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