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Geometric validation of a pediatric upper airways model using a desktop 3D printer

Cnockaert, Pierre
(2023)

Files

Cnockaert_Pierre_20081600_2022-2023.pdf
  • UCLouvain restricted access
  • Adobe PDF
  • 6.09 MB

Details

Supervisors
Poncin, William ; Reychler, Gregory
Faculty
Faculté des sciences de la motricité
Degree label
Master [120] en sciences de la motricité, orientation générale, à finalité approfondie
Abstract
OBJECTIVE: The aim of this study was to perform geometric validation of a pediatric upper airways model printed with a desktop-quality 3D printer. METHODS: Computerized tomography (CT) scan of a 10-month-old female was selected and processed through 3D Slicer software. The head CT scan underwent segmentation (delineation) between airways and surrounding anatomical structures of the head. Airways segmentation allowed their measurement for further comparison with printed model. Head segmentation enabled the creation of a 3D printable volume file. To proceed to the geometric validation of the head model, the latter underwent a CT scan. Back segmentation work was performed on the printed model. Overlap proportion between the original infant volume and the printed model as well as an average Hausdorff distance were calculated after manual alignment between the original and printed model. RESULTS: Volumes were 12,3142 cm3 and 12,3224 cm3 for the pediatric and the printed model upper airways, respectively (0,0666% difference). Overlap proportion between original and printed model was 0.9204%. The average Hausdorff distance was 0.2096 mm. CONCLUSION: Desktop low-cost 3D printer can generate pediatric upper airway model with a high dimensional accuracy, as evidenced by our comprehensive geometrical validation. However, further validation is required before the use of this model for specific in vitro experiments.