Quantification of distention in CT colonography: development and validation of three computer algorithms.
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.
Hung
Peter W
PW
Department of Radiology, Stanford University Medical Center, MC 5105, 300 Pasteur Dr, Stanford, CA 94305, USA.
Paik
David S
DS
Napel
Sandy
S
Yee
Judy
J
Jeffrey
R Brooke
RB
Steinauer-Gebauer
Andreas
A
Min
Juno
J
Jathavedam
Ashwin
A
Beaulieu
Christopher F
CF
D000465:Algorithms; D003106:Colon / Q000000981:diagnostic imaging*; D023881:Colonography, Computed Tomographic; D005240:Feasibility Studies; D019047:Phantoms, Imaging