Document Detail

Completion rate and diagnostic yield of small-bowel capsule endoscopy: 1 vs. 2 frames per second.
MedLine Citation:
PMID:  20213592     Owner:  NLM     Status:  MEDLINE    
BACKGROUND AND STUDY AIMS: Currently, the default frame rate for capsule endoscopy is usually set at 2 frames per second (fps). We postulated that setting the frame rate at 1 fps for the whole procedure would save battery life and increase the completion rate without compromising the diagnostic yield. The aim of this study was to compare the completion rates and diagnostic yield of capsule endoscopy performed with frame rates of 1 fps and 2 fps. PATIENTS AND METHODS: The OMOM capsule endoscopy system was used. The procedure was performed according to the manufacturer's instructions, and the frame rate was set at 1 fps in one group and at 2 fps in the other group for the whole procedure. The completion rate, total operating time, and diagnostic yield in the two groups were measured and compared. RESULTS: A total of 107 patients were randomized to either the 1 fps group (n = 54) or the 2 fps group (control, n = 53). There was no significant difference in sex, age, indications, and gastric transit time between the two groups. The mean total operating time was significantly longer in the 1 fps group than in the 2 fps group (758 +/- 79 minutes vs. 456 +/- 67 minutes, P < 0.001). The completion rate and diagnostic yield were significantly higher in the 1 fps group than in the 2 fps group (96.2 % vs. 70.6 %, P < 0.001; 40.7 % vs. 18.9 %, P = 0.013, respectively). CONCLUSIONS: Setting the frame rate of the capsule endoscope at 1 fps for the whole procedure increases the completion rate by prolonging the capsule's total operating time; the diagnostic yield does seem to be at least as high as with 2 fps.
Z Liao; C Xu; Z-S Li
Publication Detail:
Type:  Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't     Date:  2010-03-08
Journal Detail:
Title:  Endoscopy     Volume:  42     ISSN:  1438-8812     ISO Abbreviation:  Endoscopy     Publication Date:  2010 May 
Date Detail:
Created Date:  2010-04-28     Completed Date:  2010-08-17     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0215166     Medline TA:  Endoscopy     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  360-4     Citation Subset:  IM    
Copyright Information:
Georg Thieme Verlag KG Stuttgart.New York.
Capsule Endoscopy Study Group, Department of Gastroenterology, Digestive Endoscopy Center, Changhai Hospital, The Second Military Medical University, Shanghai, China.
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MeSH Terms
Aged, 80 and over
Capsule Endoscopes*
Capsule Endoscopy / methods*
Diagnosis, Differential
Equipment Design
Follow-Up Studies
Gastrointestinal Transit
Intestinal Diseases / diagnosis*,  physiopathology
Intestine, Small / pathology*,  physiopathology
Middle Aged
Reproducibility of Results
Retrospective Studies
Sensitivity and Specificity
Video Recording / methods*
Young Adult

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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