title: Quantification of distention in CT colonography: development and validation of three computer algorithms.
abstract: Three bowel distention-measuring algorithms for use at computed tomographic (CT) colonography were developed, validated in phantoms, and applied to a human CT colonographic data set. The three algorithms are the cross-sectional area method, the moving spheres method, and the segmental volume method. Each algorithm effectively quantified distention, but accuracy varied between methods. Clinical feasibility was demonstrated. Depending on the desired spatial resolution and accuracy, each algorithm can quantitatively depict colonic diameter in CT colonography.
authors.affiliation: Department of Radiology, Stanford University Medical Center, MC 5105, 300 Pasteur Dr, Stanford, CA 94305, USA.
authors.forename: Peter W
authors.initials: PW
authors.lastname: Hung
authors.forename: David S
authors.initials: DS
authors.lastname: Paik
authors.forename: Sandy
authors.initials: S
authors.lastname: Napel
authors.forename: Judy
authors.initials: J
authors.lastname: Yee
authors.forename: R Brooke
authors.initials: RB
authors.lastname: Jeffrey
authors.forename: Andreas
authors.initials: A
authors.lastname: Steinauer-Gebauer
authors.forename: Juno
authors.initials: J
authors.lastname: Min
authors.forename: Ashwin
authors.initials: A
authors.lastname: Jathavedam
authors.forename: Christopher F
authors.initials: CF
authors.lastname: Beaulieu
mesh_terms: D000465:Algorithms; D003106:Colon / Q000000981:diagnostic imaging*; D023881:Colonography, Computed Tomographic; D005240:Feasibility Studies; D019047:Phantoms, Imaging