title: Automated segmentation of recuts abdominis muscle using shape model in X-ray CT images.
abstract: Our purpose in this study is to segment the rectus abdominis muscle region in X-ray CT images, and we propose a novel recognition method based on the shape model. In this method, three steps are included in the segmentation process. The first is to generate a shape model for the rectus abdominis muscle. The second is to recognize anatomical feature points corresponding to the origin and insertion of the muscle, and the third is to segment the rectus abdominis muscles based on the shape model. We generated the shape model from 20 CT cases and tested the model to recognize the muscle in 20 other CT cases. The average values for the Jaccard similarity coefficient (JSC) and true segmentation coefficient (TSC) were 0.841 and 0.863, respectively. The results suggest the validity of the model-based segmentation for the rectus abdominis muscle.
authors.affiliation: Department of Intelligent Image Information, Division of Regeneration and Advanced Medical Sciences, Graduate School of Medicine, Gifu University, Yanagido 1-1, Gifu 501-1194, Japan. kamiya@fjt.info.gifu-u.ac.jp
authors.forename: N
authors.initials: N
authors.lastname: Kamiya
authors.forename: X
authors.initials: X
authors.lastname: Zhou
authors.forename: H
authors.initials: H
authors.lastname: Chen
authors.forename: C
authors.initials: C
authors.lastname: Muramatsu
authors.forename: T
authors.initials: T
authors.lastname: Hara
authors.forename: R
authors.initials: R
authors.lastname: Yokoyama
authors.forename: M
authors.initials: M
authors.lastname: Kanematsu
authors.forename: H
authors.initials: H
authors.lastname: Hoshi
authors.forename: H
authors.initials: H
authors.lastname: Fujita
mesh_terms: D001331:Automation; D006801:Humans; D021621:Imaging, Three-Dimensional; D008953:Models, Anatomic; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000379:methods*; D017568:Rectus Abdominis / Q000033:anatomy & histology* / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed / Q000379:methods*