title: Capsule endoscopy capture rate: has 4 frames-per-second any impact over 2 frames-per-second?
abstract: OBJECTIVE
  To compare the current capsule and a new prototype at 2 and 4 frames-per-second, respectively, in terms of clinical and therapeutic impact.
  
  
  METHODS
  One hundred patients with an indication for capsule endoscopy were included in the study. All procedures were performed with the new device (SB24). After an exhaustive evaluation of the SB24 videos, they were then converted to "SB2-like" videos for their evaluation. Findings, frames per finding, and clinical and therapeutic impact derived from video visualization were analyzed. Kappa index for interobserver agreement and χ (2) and Student's t tests for qualitative/quantitative variables, respectively, were used. Values of P under 0.05 were considered statistically significant.
  
  
  RESULTS
  Eighty-nine out of 100 cases included in the study were ultimately included in the analysis. The SB24 videos detected the anatomical landmarks (Z-line and duodenal papilla) and lesions in more patients than the "SB2-like" videos. On the other hand, the SB24 videos detected more frames per landmark/lesion than the "SB2-like" videos. However, these differences were not statistically significant (P > 0.05). Both clinical and therapeutic impacts were similar between SB24 and "SB2-like" videos (K = 0.954). The time spent by readers was significantly higher for SB24 videos visualization (P < 0.05) than for "SB2-like" videos when all images captured by the capsule were considered. However, these differences become non-significant if we only take into account small bowel images (P > 0.05).
  
  
  CONCLUSIONS
  More frames-per-second detect more landmarks, lesions, and frames per landmark/lesion, but is time consuming and has a very low impact on clinical and therapeutic management.
authors.affiliation: Ignacio Fernandez-Urien, Erika Borobio, Ana Borda, Department of Gastroenterology, Hospital de Navarra, 31008 Pamplona, Spain.
authors.forename: Ignacio
authors.initials: I
authors.lastname: Fernandez-Urien
authors.affiliation: Ignacio Fernandez-Urien, Erika Borobio, Ana Borda, Department of Gastroenterology, Hospital de Navarra, 31008 Pamplona, Spain.
authors.forename: Cristina
authors.initials: C
authors.lastname: Carretero
authors.affiliation: Ignacio Fernandez-Urien, Erika Borobio, Ana Borda, Department of Gastroenterology, Hospital de Navarra, 31008 Pamplona, Spain.
authors.forename: Erika
authors.initials: E
authors.lastname: Borobio
authors.affiliation: Ignacio Fernandez-Urien, Erika Borobio, Ana Borda, Department of Gastroenterology, Hospital de Navarra, 31008 Pamplona, Spain.
authors.forename: Ana
authors.initials: A
authors.lastname: Borda
authors.affiliation: Ignacio Fernandez-Urien, Erika Borobio, Ana Borda, Department of Gastroenterology, Hospital de Navarra, 31008 Pamplona, Spain.
authors.forename: Emilio
authors.initials: E
authors.lastname: Estevez
authors.affiliation: Ignacio Fernandez-Urien, Erika Borobio, Ana Borda, Department of Gastroenterology, Hospital de Navarra, 31008 Pamplona, Spain.
authors.forename: Sara
authors.initials: S
authors.lastname: Galter
authors.affiliation: Ignacio Fernandez-Urien, Erika Borobio, Ana Borda, Department of Gastroenterology, Hospital de Navarra, 31008 Pamplona, Spain.
authors.forename: Begoña
authors.initials: B
authors.lastname: Gonzalez-Suarez
authors.affiliation: Ignacio Fernandez-Urien, Erika Borobio, Ana Borda, Department of Gastroenterology, Hospital de Navarra, 31008 Pamplona, Spain.
authors.forename: Benito
authors.initials: B
authors.lastname: Gonzalez
authors.affiliation: Ignacio Fernandez-Urien, Erika Borobio, Ana Borda, Department of Gastroenterology, Hospital de Navarra, 31008 Pamplona, Spain.
authors.forename: Marisol
authors.initials: M
authors.lastname: Lujan
authors.affiliation: Ignacio Fernandez-Urien, Erika Borobio, Ana Borda, Department of Gastroenterology, Hospital de Navarra, 31008 Pamplona, Spain.
authors.forename: Jose Luis
authors.initials: JL
authors.lastname: Martinez
authors.affiliation: Ignacio Fernandez-Urien, Erika Borobio, Ana Borda, Department of Gastroenterology, Hospital de Navarra, 31008 Pamplona, Spain.
authors.forename: Vanessa
authors.initials: V
authors.lastname: Martínez
authors.affiliation: Ignacio Fernandez-Urien, Erika Borobio, Ana Borda, Department of Gastroenterology, Hospital de Navarra, 31008 Pamplona, Spain.
authors.forename: Pedro
authors.initials: P
authors.lastname: Menchén
authors.affiliation: Ignacio Fernandez-Urien, Erika Borobio, Ana Borda, Department of Gastroenterology, Hospital de Navarra, 31008 Pamplona, Spain.
authors.forename: Javier
authors.initials: J
authors.lastname: Navajas
authors.affiliation: Ignacio Fernandez-Urien, Erika Borobio, Ana Borda, Department of Gastroenterology, Hospital de Navarra, 31008 Pamplona, Spain.
authors.forename: Vicente
authors.initials: V
authors.lastname: Pons
authors.affiliation: Ignacio Fernandez-Urien, Erika Borobio, Ana Borda, Department of Gastroenterology, Hospital de Navarra, 31008 Pamplona, Spain.
authors.forename: Cesar
authors.initials: C
authors.lastname: Prieto
authors.affiliation: Ignacio Fernandez-Urien, Erika Borobio, Ana Borda, Department of Gastroenterology, Hospital de Navarra, 31008 Pamplona, Spain.
authors.forename: Julio
authors.initials: J
authors.lastname: Valle
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D059925:Anatomic Landmarks; D053704:Capsule Endoscopy / Q000379:methods*; D016009:Chi-Square Distribution; D005260:Female; D006801:Humans; D007421:Intestine, Small / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D015588:Observer Variation; D011237:Predictive Value of Tests; D011379:Prognosis; D011446:Prospective Studies; D015203:Reproducibility of Results; D013030:Spain; D013647:Task Performance and Analysis; D013997:Time Factors; D014741:Video Recording / Q000379:methods*; D055815:Young Adult
keywords: Capsule endoscopy; Diagnostic accuracy; Frames; Landmarks; Lesions; Small bowel