title: Evaluation of four time-saving methods of reading capsule endoscopy videos.
abstract: OBJECTIVE
  Review of wireless capsule endoscopy recordings is time consuming. The aim of this study was to evaluate four time-saving methods offered with Rapid Software.
  
  
  METHODS
  A total of 100 wireless capsule endoscopy videos with abnormal findings were evaluated using five different ways of viewing: (a) manual mode at a speed of 10 frames per second (fps), (b) manual mode at a speed of 20 fps, (c) manual mode with a simultaneous display of two images at a speed of 20 fps, (d) automatic mode at a speed of 10 fps, and (e) quickview mode at a speed of 3 fps. Then, we calculated the concordance of abnormal findings between each one of the four time-saving methods using method A.
  
  
  RESULTS
  The mean reading time with time-saving methods was significantly shorter than with method A (method A: 59.8 min, method B: 30 min, method C: 30.2 min, method D: 32.2 min, method E: 16.3 min). The agreement in finding abnormal lesions between method A and the four evaluated methods was excellent and almost perfect (κ>0.8), except for quickview in recognizing polyps. Diagnostic miss rate was 1% for method D, 2% for B and C, and 12% for E. No tumors and cases of celiac or Crohn's disease were lost by all four methods.
  
  
  CONCLUSIONS
  We conclude that manual mode/20 fps, the simultaneous projection of two images/20 fps, and automatic mode/10 fps have minimal diagnostic miss rates and can safely replace slower modes in clinical practice. The quickview mode is a safe diagnostic tool only when larger or diffuse lesions are suspected, such as Crohn's or celiac disease.
authors: Academic Department of Gastroenterology, Faculty of Nursing, Kifissia General and Oncology Hospital, Athens University, Athens, Greece. nikos_kiriakos@yahoo.gr
authors: Nikolaos
authors: N
authors: Kyriakos
authors: Stefanos
authors: S
authors: Karagiannis
authors: Petros
authors: P
authors: Galanis
authors: Christos
authors: C
authors: Liatsos
authors: Irini
authors: I
authors: Zouboulis-Vafiadis
authors: Evangelos
authors: E
authors: Georgiou
authors: Christos
authors: C
authors: Mavrogiannis
mesh_terms: D000328:Adult; D000368:Aged; D053704:Capsule Endoscopy / Q000379:methods*; D003951:Diagnostic Errors / Q000517:prevention & control; D005260:Female; D005767:Gastrointestinal Diseases / Q000175:diagnosis*; D006801:Humans; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D008297:Male; D008875:Middle Aged; D015588:Observer Variation; D011237:Predictive Value of Tests; D015203:Reproducibility of Results; D013997:Time Factors; D013996:Time and Motion Studies; D014741:Video Recording