title: Flat polyps of the colon: detection with 16-MDCT colonography--preliminary results.
abstract: OBJECTIVE
  This study evaluates the ability of contrast-enhanced, 16-MDCT colonography to display flat colonic lesions when a very narrow slice thickness (1 mm) is used.
  
  
  CONCLUSIONS
  Less than 50% of flat lesions in our population could be visualized by blinded and unblinded review. Before they could be visualized, flat lesions were 2 mm or greater in height and 7 mm or greater in diameter. Lesions with a height of 1 mm or less were not seen on CT colonography. Contrast enhancement, location on a haustral fold, and abnormal 2D and 3D morphology contributed to lesion conspicuity.
authors.affiliation: Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, 388-1 Poongnap-Dong, Songpa-Gu, Seoul, South Korea, 138-040.
authors.forename: Seong Ho
authors.initials: SH
authors.lastname: Park
authors.forename: Hyun Kwon
authors.initials: HK
authors.lastname: Ha
authors.forename: Ah Young
authors.initials: AY
authors.lastname: Kim
authors.forename: Kyoung Won
authors.initials: KW
authors.lastname: Kim
authors.forename: Moon-Gyu
authors.initials: MG
authors.lastname: Lee
authors.forename: Pyo Nyun
authors.initials: PN
authors.lastname: Kim
authors.forename: Yong Moon
authors.initials: YM
authors.lastname: Shin
authors.forename: Jeong-Sik
authors.initials: JS
authors.lastname: Byeon
authors.forename: Suk-Kyun
authors.initials: SK
authors.lastname: Yang
authors.forename: Jin Ho
authors.initials: JH
authors.lastname: Kim
authors.forename: Young Il
authors.initials: YI
authors.lastname: Min
mesh_terms: D000368:Aged; D003111:Colonic Polyps / Q000000981:diagnostic imaging* / Q000473:pathology*; D023881:Colonography, Computed Tomographic / Q000379:methods; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies