Med Biol Eng Comput - Fast 3D reconstruction of the rib cage from biplanar radiographs.

Tópicos

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{ estim(2440) model(1874) function(577) }
{ assess(1506) score(1403) qualiti(1306) }
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Resumo

The stereoradiographic reconstruction method allows obtaining the three-dimensional (3D) rib cage geometry, which is essential for clinical evaluation or biomechanical studies. However, reconstruction time is still high (about 20 min considering operator time). The purpose of this study is to propose a 3D reconstruction of the rib cage from biplanar radiographs, based on the deformation of a prepersonalized object. Validation in comparison with computed tomography (CT-scan) acquisitions was performed. Local parameters (rib length, cord length, maximum width, area, and rib orientations) were computed from reconstructions. Parameters' reproducibility was assessed with two observers and two measurements for 15 subjects. Regarding validation of the parameters, the mean difference with the CT-scan was between 6.3 and 1.3%. Observer variability was maximal for rib area (6.2%) and was lower than 4.2% for others parameters. The proposed reconstruction method reduced time (less than three minutes for operator time) to obtain a 3D reconstruction of the rib cage.

Resumo Limpo

stereoradiograph reconstruct method allow obtain threedimension d rib cage geometri essenti clinic evalu biomechan studi howev reconstruct time still high min consid oper time purpos studi propos d reconstruct rib cage biplanar radiograph base deform preperson object valid comparison comput tomographi ctscan acquisit perform local paramet rib length cord length maximum width area rib orient comput reconstruct paramet reproduc assess two observ two measur subject regard valid paramet mean differ ctscan observ variabl maxim rib area lower other paramet propos reconstruct method reduc time less three minut oper time obtain d reconstruct rib cage

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