title: Role of high definition colonoscopy in colorectal adenomatous polyp detection.
abstract: OBJECTIVE
  To investigate the rates of polyp detection in a mixed risk population using standard definition (SDC) vs high definition colonoscopes (HDC).
  
  
  METHODS
  This was a retrospective cohort comparative study of 3 colonoscopists who each consecutively performed 150 SDC (307, 200 pixel) and 150 HDC (792, 576 pixels) in a community teaching hospital.
  
  
  RESULTS
  A total of 900 colonoscopies were evaluated (mean age 56, 46.8% men), 450 with each resolution. Polyps of any type were detected in 46.0% of patients using SDC and 43.3% with HDC (P = 0.42). There was no significant difference between the overall number of polyps, HDC (397) and SDC (410), detected among all patients examined, (P = 0.73). One or more adenomatous polyps were detected in 24.2% of patients with HDC and 24.9% of patients with SDC colonoscopy (P = 0.82). There was no significant difference between HDC (M = 0.41) and SDC (M = 0.42) regarding adenomatous polyp (P = 0.88) or advanced adenoma (P = 0.56) detection rate among all patients examined.
  
  
  CONCLUSIONS
  HDC did not improve yield of adenomatous polyp, advanced adenoma or overall polyp detection in a population of individuals with mixed risk for colorectal cancer.
authors: Department of Gastroenterology, Cleveland Clinic Florida, Weston, FL 33331, United States. erimt@ccf.org
authors: Tolga
authors: T
authors: Erim
authors: John M
authors: JM
authors: Rivas
authors: Evelio
authors: E
authors: Velis
authors: Fernando
authors: F
authors: Castro
mesh_terms: D018256:Adenomatous Polyps / Q000175:diagnosis*; D000328:Adult; D000368:Aged; D002986:Clinical Trials as Topic; D015331:Cohort Studies; D003111:Colonic Polyps / Q000175:diagnosis*; D020685:Colonoscopes; D003113:Colonoscopy / Q000379:methods*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies