title: 3D prostate segmentation in ultrasound images based on tapered and deformed ellipsoids.
abstract: Prostate segmentation from trans-rectal transverse B-mode ultrasound images is required for radiation treatment of prostate cancer. Manual segmentation is a time-consuming task, the results of which are dependent on image quality and physicians' experience. This paper introduces a semi-automatic 3D method based on super-ellipsoidal shapes. It produces a 3D segmentation in less than 15 seconds using a warped, tapered ellipsoid fit to the prostate. A study of patient images shows good performance and repeatability. This method is currently in clinical use at the Vancouver Cancer Center where it has become the standard segmentation procedure for low dose-rate brachytherapy treatment.
authors.affiliation: Department of Electrical and Computer Engineering, University of British Columbia, Vancouver, Canada. saram@ece.ubc.ca
authors.forename: Seyedeh Sara
authors.initials: SS
authors.lastname: Mahdavi
authors.forename: William J
authors.initials: WJ
authors.lastname: Morris
authors.forename: Ingrid
authors.initials: I
authors.lastname: Spadinger
authors.forename: Nick
authors.initials: N
authors.lastname: Chng
authors.forename: Orcun
authors.initials: O
authors.lastname: Goksel
authors.forename: Septimiu E
authors.initials: SE
authors.lastname: Salcudean
mesh_terms: D000465:Algorithms; D001185:Artificial Intelligence; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D008297:Male; D010363:Pattern Recognition, Automated / Q000379:methods*; D011467:Prostate / Q000000981:diagnostic imaging*; D011471:Prostatic Neoplasms / Q000000981:diagnostic imaging*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014463:Ultrasonography