Int J Comput Assist Radiol Surg - Acetabular cartilage segmentation in CT arthrography based on a bone-normalized probabilistic atlas.

Tópicos

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Resumo

RPOSE: Determination of acetabular cartilage loss in the hip joint is a clinically significant metric that requires image segmentation. A new semiautomatic method to segment acetabular cartilage in computed tomography (CT) arthrography scans was developed and tested.METHODS: A semiautomatic segmentation method was developed based on the combination of anatomical and statistical information. Anatomical information is identified using the pelvic bone position and the contact area between cartilage and bone. Statistical information is acquired from CT intensity modeling of acetabular cartilage and adjacent tissue structures. This method was applied to the identification of acetabular cartilages in 37 intra-articular CT arthrography scans.RESULTS: The semiautomatic anatomical-statistical method performed better than other segmentation methods. The semiautomatic method was effective in noisy scans and was able to detect damaged cartilage.CONCLUSIONS: The new semiautomatic method segments acetabular cartilage by fully utilizing the statistical and anatomical information in CT arthrography datasets. This method for hip joint cartilage segmentation has potential for use in many clinical applications.

Resumo Limpo

rpose determin acetabular cartilag loss hip joint clinic signific metric requir imag segment new semiautomat method segment acetabular cartilag comput tomographi ct arthrographi scan develop testedmethod semiautomat segment method develop base combin anatom statist inform anatom inform identifi use pelvic bone posit contact area cartilag bone statist inform acquir ct intens model acetabular cartilag adjac tissu structur method appli identif acetabular cartilag intraarticular ct arthrographi scansresult semiautomat anatomicalstatist method perform better segment method semiautomat method effect noisi scan abl detect damag cartilageconclus new semiautomat method segment acetabular cartilag fulli util statist anatom inform ct arthrographi dataset method hip joint cartilag segment potenti use mani clinic applic

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