title: Method of pectus excavatum measurement based on structured light technique.
abstract: We present an automatic method for assessment of pectus excavatum severity based on an optical 3-D markerless shape measurement. A four-directional measurement system based on a structured light projection method is built to capture the shape of the body surface of the patients. The system setup is described and typical measurement parameters are given. The automated data analysis path is explained. Their main steps are: normalization of trunk model orientation, cutting the model into slices, analysis of each slice shape, selecting the proper slice for the assessment of pectus excavatum of the patient, and calculating its shape parameter. We develop a new shape parameter (I(3ds)) that shows high correlation with the computed tomography (CT) Haller index widely used for assessment of pectus excavatum. Clinical results and the evaluation of developed indexes are presented.
authors.affiliation: Medical University of Warsaw, Department of Orthopaedics and Traumatology of Locomotor System, Center of Excellence TeleOrto, ul. Lindleya 4, 02-005 Warsaw, Poland.
authors.forename: Wojciech
authors.initials: W
authors.lastname: Glinkowski
authors.forename: Robert
authors.initials: R
authors.lastname: Sitnik
authors.forename: Marcin
authors.initials: M
authors.lastname: Witkowski
authors.forename: Hanna
authors.initials: H
authors.lastname: Kocoń
authors.forename: Pawel
authors.initials: P
authors.lastname: Bolewicki
authors.forename: Andrzej
authors.initials: A
authors.lastname: Górecki
mesh_terms: D000293:Adolescent; D000465:Algorithms; D000886:Anthropometry / Q000379:methods*; D001185:Artificial Intelligence; D002648:Child; D005260:Female; D005660:Funnel Chest / Q000473:pathology*; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional / Q000379:methods*; D008297:Male; D010363:Pattern Recognition, Automated / Q000379:methods*; D010781:Photography / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D055815:Young Adult