title: Algorithm for automatic angles measurement and screening for Developmental Dysplasia of the Hip (DDH).
abstract: Developmental Dysplasia of the Hip (DDH) is a medical term represent the hip joint instability that appear mainly in infants. The examination for this condition can be done by ultrasound for children under 6 months old and by X-ray for children over 6 months old. Physician's assessment is based on certain angles derived from those images, namely the Acetabular Angle, and the Center Edge Angle. In this paper, we are presenting a novel, fully automatic algorithm for measuring the diagnostic angles of DDH from the X-ray images. Our algorithm consists of Automatic segmentation and extraction of anatomical landmarks from X-ray images. Both of Acetabular angle and Center edge angle are automatically calculated. The analysis included X-ray images for 16 children recruited for the purposed of this study. The automatically acquired angles accuracy for Acetabular Angle was around 85%, and an absolute deviation of 3.4°±3.3° compared to the physician's manually calculated angle. The results of this method are very promising for the future development of an automatic method for screening X-ray images DDH that complement and aid the physicians' manual methods.
authors.forename: Areen K
authors.initials: AK
authors.lastname: Al-Bashir
authors.forename: Mohammad
authors.initials: M
authors.lastname: Al-Abed
authors.forename: Fayez M
authors.initials: FM
authors.lastname: Abu Sharkh
authors.forename: Mohamed N
authors.initials: MN
authors.lastname: Kordeya
authors.forename: Fadi M
authors.initials: FM
authors.lastname: Rousan
mesh_terms: D000077:Acetabulum / Q000000981:diagnostic imaging; D000465:Algorithms; D005260:Female; D006618:Hip Dislocation, Congenital / Q000000981:diagnostic imaging*; D006621:Hip Joint / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D007090:Image Interpretation, Computer-Assisted; D007223:Infant; D007231:Infant, Newborn; D007593:Joint Instability / Q000000981:diagnostic imaging*; D008297:Male; D011859:Radiography