title: Comparison of Automated Atlas-Based Segmentation Software for Postoperative Prostate Cancer Radiotherapy.
abstract: Automated atlas-based segmentation (ABS) algorithms present the potential to reduce the variability in volume delineation. Several vendors offer software that are mainly used for cranial, head and neck, and prostate cases. The present study will compare the contours produced by a radiation oncologist to the contours computed by different automated ABS algorithms for prostate bed cases, including femoral heads, bladder, and rectum. Contour comparison was evaluated by different metrics such as volume ratio, Dice coefficient, and Hausdorff distance. Results depended on the volume of interest showed some discrepancies between the different software. Automatic contours could be a good starting point for the delineation of organs since efficient editing tools are provided by different vendors. It should become an important help in the next few years for organ at risk delineation.
authors.affiliation: Medical Physics Department, Institut de Cancérologie de l'Ouest, Centre René Gauducheau , Saint Herblain , France.
authors.forename: Grégory
authors.initials: G
authors.lastname: Delpon
authors.affiliation: Radiation Oncology Department, Centre Oscar Lambret , Lille , France.
authors.forename: Alexandre
authors.initials: A
authors.lastname: Escande
authors.affiliation: Medical Physics Department, SELARL d'imagerie médicale et de cancérologie du Pont Saint Vaast , Douai , France.
authors.forename: Timothée
authors.initials: T
authors.lastname: Ruef
authors.affiliation: Medical Physics Department, Institut Paoli-Calmettes , Marseille , France.
authors.forename: Julien
authors.initials: J
authors.lastname: Darréon
authors.affiliation: Medical Physics Department, Institut de Cancérologie de l'Ouest, Centre René Gauducheau , Saint Herblain , France.
authors.forename: Jimmy
authors.initials: J
authors.lastname: Fontaine
authors.affiliation: Medical Physics Department, Institut de Cancérologie de l'Ouest, Centre René Gauducheau , Saint Herblain , France.
authors.forename: Caroline
authors.initials: C
authors.lastname: Noblet
authors.affiliation: Radiotherapy Department, Institut de Cancérologie de l'Ouest, Centre René Gauducheau , Saint Herblain , France.
authors.forename: Stéphane
authors.initials: S
authors.lastname: Supiot
authors.affiliation: Medical Physics Department, Centre Oscar Lambret , Lille , France.
authors.forename: Thomas
authors.initials: T
authors.lastname: Lacornerie
authors.affiliation: Radiation Oncology Department, Centre Oscar Lambret, Lille, France; CRISTAL UMR CNRS 9189, Lille University, Lille, France.
authors.forename: David
authors.initials: D
authors.lastname: Pasquier
keywords: atlas; automatic segmentation; contour comparison; postoperative radiotherapy; prostate bed