Pelvic incidence measurement using a computed tomography data-based three-dimensional pelvic model

Autor: Hong-Fang Chen, Jie Mi, Heng-Hui Zhang, Chang-Qing Zhao
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Journal of Orthopaedic Surgery and Research, Vol 14, Iss 1, Pp 1-9 (2019)
Druh dokumentu: article
ISSN: 1749-799X
DOI: 10.1186/s13018-018-1050-4
Popis: Abstract Objectives To introduce a new method of pelvic incidence (PI) measurement based on three-dimensional (3D) pelvic models reconstructed from CT images and to report the normal distribution of PI in normal pelvic anatomy. Methods CT images of 320 subjects with normal pelvic anatomy who visited the Radiology Department between 2006 and 2017 were retrospectively selected and saved in Digital Imaging and Communications in Medicine (DICOM) format. A computerized method was employed to determine the bony landmarks required for the measurement of PI. To quantify the method’s accuracy and reliability, the intraclass correlation coefficient (ICC) was calculated. A subgroup of 30 DICOM files was randomly selected to perform a validation study. Three independent testers performed all procedures. All measurements were performed twice independently by the three testers on all 10 subjects with an interval of 2 weeks. Independent samples t tests were used to identify statistically significant differences in the PI value between sexes. Pearson correlation coefficient was employed to determine the relationship between PI and age. Results PI measurement using the new method resulted in an excellent intraobserver reliability (0.9612, range 0.8917–0.9893; p
Databáze: Directory of Open Access Journals
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